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Brian J. Kirby

NIST Center for Neutron Research

100 Bureau Drive Stop 8562

Gaithersburg, MD  20899

Phone:  (301) 975-8395

Email:  bkirby@nist.gov


Education:

Ph.D, Physics, December 2004

University of Missouri, Columbia, Missouri

Advisor:  James Rhyne


B. S., Physics (Magna Cum Laude), Minor in Mathematics, May 2000

Pittsburg State University, Pittsburg, Kansas


Primary Research Interests:

Development of artificial magnetic semiconductors

Exchange coupling in magnetic media

Morphology of organic photovoltaics

Neutron scattering techniques for studying magnetic materials


Work History:

September 2006- present: 

Physicist, Condensed Matter Science Group, Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland


January 2005- August 2006: 

Postdoctoral Research Associate, Manuel Lujan Jr. Neutron Scattering Center, Los Alamos National Laboratory, Los Alamos New Mexico


July 2000- December 2004: 

Graduate Assistant, Department of Physics and Astronomy, University of Missouri

Columbia, Missouri


Summer 1999: 

Undergraduate Research Fellow, Princeton Plasma Physics Laboratory

Princeton, New Jersey


Publications: 

Interfacial ferromagnetism and exchange bias in CaRuO3/CaMnO3 superlattices

C. He, M. Gu, N. D. Browning, Y. Takamura, B. J. Kirby, J. A. Borchers,

X. Zhai, V. V. Mehta, F. J. Wong, and Y. Suzuki.

In preparation, 2012.


Polarized neutron reflectometry as a probe of nanoporous magnetic multilayers

B. J. Kirby, M. T. Rahman, R. K. Dumas, J. E. Davies, C. H. Lai, and Kai Liu

Submitted for publication, 2011.


Controlling Spin Ordering in Frustrated Magnets via Heteroepitaxy

J. M. Iwata-Harms, F. J. Wong, B. J. Kirby, J. A. Borchers, M. F. Toney, B. B. Nelson-Cheeseman, M. Liberati, E. Arenholz, and Y. Suzuki.

Submitted for publication, 2011.


Optimization of spin-triplet supercurrent in ferromagnetic Josephson junctions

Carolin Klose, Trupti S. Khaire, Yixing Wang, W. P. Pratt, Jr., Norman O. Birge, B. J. McMorran, T. P. Ginley, J. A. Borchers, B. J. Kirby, B. B. Maranville and J. Unguris

Accepted to Physical Review Letters, 2011.


Chiral modulations and reorientation effects in MnSi thin films

E. A. Karhu, U. K. Robler, A. N. Bogdanov, S. Kahwa ji, B. J. Kirby,

H. Fritzsche, M. D. Robertson, C. F. Ma jkrzak, and T. L. Monchesky.

Accepted to Physical Review B, 2012.


X-ray and neutron reflectivity and electronic properties of PCBM-poly(bromo)styrene blends and bilayers with poly(3-hexylthiophene)

S. B. Kirschner, N. Smith, H. E. Katz, B. J. Kirby, J. A. Borchers, and D. H. Reich.

Accepted to Journal of Materials Chemistry, 2012.


Exchange Coupling in Magnetic Semiconductor Multilayers and Superlattices

J. K. Furdyna, J. Leiner, X. Liu, M. Dobrowolska, S. Lee, J. -H. Chung, and B. J. Kirby

Accepted to Acta Physica Polonica, 2012.


Phase-Sensitive Specular Neutron Reflectometry for Imaging the Nanometer Scale Compositional Depth Profile of Thin-Film Materials

B. J. Kirby, P. A. Kienzle, N. F. Berk, J. Krycka, F. Heinrich, and C. F. Majkrzak

Current Opinion in Colloid & Interface Science, (2011), doi: 10.1016/j.cocis.2011.11.001. hyperlink ➪


(001) FePt graded media with PtMn underlayers

C. -C. Chiang, L.-W. Wang, H.-C. Hou, J.-W. Liao, H.-J.

Lin, F.-H. Chang, B. J. Kirby, and C.-H. Lai

Applied Physics Letters, 99, 212504 (2011). hyperlink ➪


Structural properties of Bi2Te3 and Bi2Se3 topological insulators grown by molecular beam epitaxy on GaAs(100) substrates
X. Liu, D. J. Smith, J. Fan, Y.-H. Zhang, H. Cao, Y. P. Chen, J. Leiner, B. J. Kirby, M. Dobrowolska, and J. K. Furdyna

Applied Physics Letters 99, 171903 (2011). hyperlink ➪


Modulation Doping of Ferromagnetism in Antiferromagnetic Manganite Superlattice

T. S. Santos, B. J. Kirby, S. Kumar, S. J. May, J. A. Borchers, B. B. Maranville, J. Zarestky, S. G. E. te Velthuis, J. van den Brink, and A. Bhattacharya.

Physical Review Letters 107, 167202 (2011).  hyperlink ➪


Interfacial electronic and magnetic properties of a Y0.6 Pr0.4 Ba2 Cu3O7 /La2/3 Ca1/2 MnO3 superlattice

Jian Liu, B. J. Kirby, B. Gray, M. Kareev, H. -U. Habermeier, G. Cristiani, J. W. Freeland, and J. Chakhalian.

Physical Review B 84, 092506 (2011).  hyperlink ➪


Symmetric interfacial reconstruction in  La0.7Ca0.3MnO3/YBa2Cu3O7/La0.7Ca0.3MnO3 heterostructures

C. Visani, J. Tornos, N. M. Nemes, M. Rocci, C. Leon, J. Santamaria, S. G. E. te Velthuis, Yaohua Liu, A. Hoffmann, J. W. Freeland, M. Garcia-Hernandez, M. R. Fitzsimmons, B. J. Kirby, M. Varela, and S. J. Pennycook.

Physical Review B Rapid Communications 84, 060405 (2011).  hyperlink ➪


Helical magnetic order in MnSi thin films

E. A. Karhu, S. Kahwaji, M. D. Robertson, H. Fritzsche, B. J. Kirby, C. F. Majkrzak, and T. L. Monchesky.

Physical Review B Rapid Communications 84, 060404 (2011).  hyperlink ➪


Fingerprinting magnetic reversal in graded anisotropy FePtCu films

R. K. Dumas, Yeyu Fang, B. J. Kirby, Chaolin Zha, V. Bonanni, Josep Nogues, and Johan Åkerman.

Physical Review B 84 054434 (2011).  hyperlink ➪


Investigation of weak interlayer exchange coupling in the GaMnAs/GaAs superlattice with insulating nonmagnetic spacers

Jae-Ho Chung, Taehee Yoo, Sun-Jae Chung, Sanghoon Lee, B. J. Kirby, X. Liu, and J. K. Furdyna.

Journal of Applied Physics 110, 013912 (2011). hyperlink ➪


Impact of interfacial magnetism on magnetocaloric properties of thin film heterostructures

B.J. Kirby, J. W. Lau, D. V. Williams, C. A. Bauer, and Casey W. Miller,

Journal of Applied Physics 109, 07C307 (2011).  hyperlink ➪


Antiferromagnetic exchange coupling between GaMnAs layers separated by a nonmagnetic GaAs:Be spacer

J. Leiner, K. Tivakornsasithorn, X. Liu, J. K. Furdyna, C.M. Dobrowolska, B. J. Kirby, H. Lee, T. Yoo, and Sanghoon Lee,

Journal of Applied Physics 109, 07C307 (2011).  hyperlink ➪

Magnetization Reversal Mechanisms in Heusler Alloy Spin Valves

T. P. Ginley, J. A. Borchers, B. J. Kirby, C. L. Dennis, M. J. Carey, and J. R. Childress.

Journal of Applied Physics 109, 07B110 (2011).  hyperlink ➪


Observation of Antiferromagnetic Interlayer Exchange Coupling in a GaMnAs/GaAs:Be GaMnAs trilayer structure

J. Leiner, H. Lee, T. Yoo, Sanghoon Lee, B. J. Kirby, K. Tivakornsasithorn, X. Liu, J. K. Furdyna, and M. Dobrowolska,

Physical Review B 82, 195205 (2010).  hyperlink ➪


Phase-sensitive neutron reflectometry measurements applied in the study of photovoltaic films

J. W. Kiel, M. E. Mackay, B. J. Kirby, B. B. Maranville, and C. F. Majkrzak,

Journal of Chemical Physics 133, 074902 (2010).  hyperlink ➪


Vertically graded anisotropy in Co/Pd multilayers

B. J. Kirby, J. E. Davies, Kai Liu, S. M. Watson, G. T. Zimanyi, R. D. Shull, P. A. Kienzle, and J. A. Borchers,

Physical Review B 81, 100405(R) (2010).  hyperlink ➪


Nanoparticle concentration profile in polymer-based solar cells

W. Kiel, B. J. Kirby, C. F. Majkrzak, B. B. Maranville, and M. E. Mackay,

Soft Matter 6, 641 (2010).  hyperlink ➪


Giant magnetoresistance and long-range antiferromagnetic interlayer exchange coupling in (Ga,Mn)As/GaAs:Be multilayers

Sunjae Chung, Sanghoon Lee, J.-H. Chung, Taehe Yoo, B. Kirby, X. Liu, and J. K. Furdyna

Physical Review B 82, 054420 (2010).  hyperlink ➪


Application of Polarized Neutron Reflectometry and X-Ray Resonant Magnetic Reflectometry for Determining the Inhomogeneous Magnetic Structure in Fe/Gd Multilayers

E. A. Kravtsov, D. Haskel, S. G. E. te Velthuis, J. S. Jiang, and B. J. Kirby,

Bulletin of the Russian Academy of Sciences: Physics 74, 1471 (2010).  hyperlink ➪


Ferromagnetic semiconductor GaMnAs: Magnetic anisotropy and Interlayer exchange coupling

Sanghoon Lee, J. -H. Chung, X. Liu, J. K. Furdyna, and B. J. Kirby,

Materials Today 12, 14 (2009).  hyperlink ➪


Inhomogeneous magnetic states in Fe/Gd heterostructures probed by the complementary use of magnetic neutron and x-ray reflectometry

E. Kravtsov, D. Haskel, S. G. E. te Velthuis, J. S. Jiang, and B. J. Kirby,

Physical Review B 79, 134438 (2009).   hyperlink ➪


Direct Observation of Magnetic Gradient in Co/Pd Pressure-Graded Media

B. J. Kirby, S. M. Watson, J. E. Davies, Kai Liu, R. D. Shull, and J. A. Borchers,

Journal of Applied Physics 105, 07C929 (2009).  hyperlink ➪


Anomalous Ferromagnetism in TbMnO3 Thin Films

B. J. Kirby, D. Kan, A. Luykx, M. Murakami, D. Kundaliya, and I. Takeuchi,

Journal of Applied Physics 105, 07D917 (2009).  hyperlink ➪


Carrier-Mediated Antiferromagnetic Interlayer Exchange Coupling in Diluted Magnetic Semiconductor Multilayers Ga1-xMnxAs / GaAs:Be

J.-H Chung, S. J. Chung, Sanghoon Lee, B. J. Kirby, J. A. Borchers, Y. J. Cho, X. Liu, and J. K. Furdyna,

Physical Review Letters 101, 237202 (2008). hyperlink ➪


Ferromagnetism in CuO-ZnO Multilayers

C. Sudakar, K. Padmanabhan, R. Naik, G. Lawes, B. J. Kirby, Sanjiv Kumar, and V. M. Naik,

Applied Physics Letters 93, 042502 (2008).  hyperlink ➪


The Use of Symmetry to Correct Larmor Phase Aberrations in Spin Echo Scattering Angle Measurement

R.Pynn, W. T. Lee, P. Stonaha, V. R. Shah, A. L. Washington, B. J. Kirby, C. F. Majkrzak, and B. B. Maranville,

Review of Scientific Instruments 79, 063901 (2008).  hyperlink ➪


Extreme Magnetic Anisotropy and Multiple Superconducting Transition Signatures in a [Nb(23nm)/Ni(5nm)]5 Multilayer

L.E. De Long, S. A. Kryukov, A. G. Joshi, W. Xu, D. He, L.A. Bosomtwi, M. R. Fitzsimmons, and B. J. Kirby. 
Physica C 76,  245301 (2008).  hyperlink ➪


Magnetization Reversal of Ga1-xMnxAs Layers Separated by a Non-Magnetic Spacer

B. J. Kirby, J. A. Borchers, X. Liu, Z. Ge, Y. J. Cho, M. Dobrowolska, and J. K. Furdyna.

Journal of Applied Physics 103, 07C116 (2008).  hyperlink ➪


Suppression of Nuclear Polarization near the Surface of Optically Pumped GaAs

M.R. Fitzsimmons, B. J. Kirby, N. W. Hengartner, F. Trouw, M. J. Erickson, S.D. Flexner, T. Kondo, C. Adelmann, C. J. Palmstrom, P. A. Crowell, W. Chen, T. R. Gentile, J. A. Borchers, C. F. Majkrzak, and R. Pynn. 

Physical Review B 76, 245301 (2007).  hyperlink ➪


Definitive Evidence of Interlayer Coupling Between Ga1-xMnxAs Layers Separated by a Non-Magnetic Spacer

B.J. Kirby, J. A. Borchers, X. Liu, Z. Ge, Y. J. Cho, M. Dobrowolska, and J. K. Furdyna.

Physical Review B 76, 205316 (2007).   hyperlink ➪


Pinned Magnetization in the Antiferromagnet & Ferromagnet of an Exchange Bias System

M. R. Fitzsimmons, B. J. Kirby, S. Roy, Zhi-Pan Li, I. V. Roschin, S. K. Sinha, and Ivan K. Schuller, 

Physical Review B 75, 214412 (2007).  hyperlink ➪


Pinned Spin Depth Profile of an Oxidized-Mn/Ga1-xMnxAs Exchange Bias Bilayer

B. J. Kirby, M.R. Fitzsimmons, J. A. Borchers, Z. Ge, X. Liu, and J. K. Furdyna.      

IEEE Transactions on Magnetics 43, 3016 (2007).  hyperlink ➪


Magnetic Compound Refractive Lens for Focusing and Polarizing Cold Neutron Beams

K. C. Littrell, S. G. E. te Velthuis, G. P. Felcher, S. Park, B. J. Kirby, and M. R. Fitzsimmons. 

Review of Scientific Instruments 78, 035101 (2007).  hyperlink ➪


Magnetic and Chemical Nonuniformity in Ga1-xMnxAs Films as Probed with X-Ray and Polarized Neutron Reflectometry

B. J. Kirby, J. A. Borchers, J. J. Rhyne, K. V. O’Donovan, S. G. E. te Velthuis, A. Hoffmann, S. Roy, Cecilia Sanchez-Hanke, T. Wojtowicz, X. Liu, W. L. Lim, M. Dobrowolska, and J. K. Furdyna,  

Physical Review B 74, 245304 (2006). hyperlink ➪


Spin Dynamics and Magnon-Phonon Interactions in Nd0.6Sr0.4MnO3

B. J. Kirby, J. J. Rhyne, H. Kaiser, Y. Tokura, and H. Kuwahara,

Journal of Magnetism and Magnetic Materials 302, 237 (2006).  hyperlink ➪


Effects of Capping on the Ga1-xMnxAs Magnetic Depth Profile

B. J. Kirby, J. A. Borchers, J. J. Rhyne, K. V. O’Donovan, T. Wojtowicz, X. Liu, Z. Ge, S. Shen, and J. K. Furdyna,

Applied Physics Letters 86, 072506 (2005). hyperlink ➪


Annealing Dependent Magnetic Depth Profile in Ga1-xMnxAs

B. J. Kirby, J. J. Rhyne, J. A. Borchers, K. V. O’Donovan, S. G. E. te Velthuis, A. Hoffmann, T. Wojtowicz, X. Liu, W. L. Lim, and J. K. Furdyna,

Physical Review B 69 081307(R) (2004).  hyperlink ➪


Spin Excitations in LaCaMnO3

L. Stumpe, B. Kirby, H. Kaiser, J. J. Rhyne, and J. Mitchell,

Journal of Applied Physics 91, 7511 (2002).  hyperlink ➪


Invited Presentations:

Directly Probing Anisotropy Gradients Using Polarized Neutron Reflectometry, INTERMAG, Taipei, Taiwan, April 2011.


Probing Interfaces in Novel Electronic Materials Using Neutron Reflectometry

NIST Workshop:  Measurements to Enable Science and Engineering Beyond CMOS, St. Michaels, Maryland, April 2011.


interfacial properties of electronic materials - neutron reflectometry at NIST

University of Virginia Materials Science Seminar, Charlottesville, Virginia, November 2010.


interfacial properties of electronic materials - neutron reflectometry at NIST

University of South Florida Physics Colloquium, Tampa, Florida, October 2010.


Neutron Scattering Studies of Dilute Magnetic Semiconductors,

NIST Center for Neutron Research Seminar, Gaithersburg, Maryland, May 2006.


Polarized Neutron Reflectivity as a Probe of Nuclear Polarization in GaAs

B. J. Kirby, Institute for Complex Adaptive Materials Conference, Sante Fe, NM, November 2005.


Mechanisms of Annealing-Induced Ferromagnetic Enhancement in Ga1-xMnxAs

B. J. Kirby, Lujan Neutron Scattering Center Seminar Series, Los Alamos, NM, October 2004.


Mechanisms of Annealing-Induced Ferromagnetic Enhancement in Ga1-xMnxAs

B. J. Kirby, University of Missouri-Columbia O. M. Stewart Colloquium, Columbia, MO, Oct. 2004.


Annealing-Dependent Phenomena in Ga1-xMnxAs

B. J. Kirby, International Workshop on Polarized Neutrons in Condensed Matter Investigations,

Washington D. C., June 2004. 


Annealing-Dependent Phenomena in Ferromagnetic Semiconductors

B. J. Kirby, University of Missouri-Columbia Department of Physics Condensed Matter Seminar,

Columbia, Missouri, September 2003.


Neutron Scattering Studies of Ferromagnetic Semiconductors

B.J. Kirby, Missouri University Research Reactor Fellowship Award Seminar,

Columbia, Missouri, May 2003.


Princeton Plasma Physics Laboratory FQ Equilibrium Code UNIX Workstation Port

B.J. Kirby and M. D. Mulligan, FA-SURE Conference, Argonne National Laboratory,

Argonne,Illinois, June 1999.


Professional Activities:

Member of the American Physical Society


Member of the APS Topical Group on Magnetism and its Applications


Member of the National Neutron Scattering Society of America


Scientific Journal Referee, including: Nature Communications, Physical Review Letters, Physical Review B, Applied Physics Letters, Journal of Applied Physics, Journal of Physics - Condensed Matter, IEEE Transactions on Magnetics, Superlattices and Microstructures, and Journal of Physics D - Condensed Matter.


2011:  Chairperson, Magnetic Semiconductors Session, 56th Magnetism and Magnetic Materials Conference, Scottsdale, Arizona


2011:  Co-chairperson, National Institute of Standards and Technology Summer School on Inelastic and Small Angle Scattering, Gaithersburg, Maryland.


2008:  Abstract sorter, 2009 American Physical Society March Meeting Sorters Meeting,

College Park, Maryland


2008:  Chairperson, Multilayers Session, 53rd Magnetism and Magnetic Materials Conference, Austin, Texas


2008:  Co-chairperson, National Institute of Standards and Technology Summer School on

Small Angle Scattering and Reflectometry, Gaithersburg, Maryland.


2007:  Chairperson, Magnetic Semiconductors Session, 52nd Magnetism and Magnetic Materials Conference, Tampa Florida.


2007:  Chairperson, Magnetic Semiconductors Session, 10th Joint Magnetism and

Magnetic Materials / Intermag Conference, Baltimore, Maryland.


2006:  Chairperson, III-V Magnetic Semiconductors Session,

American Physical Society March Meeting, Baltimore, Maryland.


2005:  Chairperson, Magnetic Semiconductors Session,

50th Magnetism and Magnetic Materials Conference, San Jose, California.


2004:  Lecturer - NIST Summer School on Neutron Small Angle Scattering and Reflectometry from Submicron Structures, Gaithersburg, Maryland.


2004:  Graduate, LANSCE Winter School on Magnetism, Los Alamos, New Mexico.


2002:  Graduate, NIST Center for Neutron Research Summer School on Small Angle Neutron Scattering and Neutron Reflectometry, Gaithersburg, Maryland


2001:  Graduate, National School on Neutron Scattering and X-Ray Scattering,

Argonne National Laboratory, Argonne, Illinois


Awards / Honors:

2011:  NIST Center for Neutron Research Advances in Measurement, “Directly probing anisotropy gradients using polarized neutron reflectometry.”


2011:  NIST Center for Neutron Research Annual Research Highlight, “Modulation Doping of Ferromagnetism in Antiferromagnetic Manganite Superlattices.”


2009:  NIST Center for Neutron Research Annual Research Highlight,

“Film Morphology of Polymer-based Solar Cells.”


2009:  NIST Center for Neutron Research Annual Research Highlight,

“Antiferromagnetic Exchange Coupling in the Dilute Ferromagnetic Semiconductor GaMnAs.”


2006:  National Synchrotron Light Source, Brookhaven National Laboratory,  Annual Research Highlight, “Magnetic and Chemical Nonuniformity in Ga1-xMnxAs Films as Probed with X-Ray and Polarized Neutron Reflectometry.”


2004:  NIST Center for Neutron Research Annual Research Highlight,

“Annealing Dependent Magnetic Depth Profile in Ga1-xMnxAs.”


2001-2003:  Missouri University Research Reactor Research Fellowship Award


1999:  DOE Energy Research Undergraduate Laboratory Fellowship,

Princeton Plasma Physics Laboratory


1996-2000:  Pittsburg State University Honors College scholarship



Contributed Conference Presentations & Accepted Abstracts:

Tunable exchange length in laminate exchange coupled composite media

B. J. Kirby, Hao-Cheng Hou, and Chih-Huang Lai

American Physical Society March Meeting, Boston, Massachusetts, March 2012.


Graded anisotropy and Pd polarization in pressure-varied Co/Pd multilayers

B.J. Kirby, P. Greene, and Kai Liu.

56th Conference on Magnetism and Magnetic Materials, Scottsdale, Arizona, November, 2011.


Impact of interfacial magnetism on magnetocaloric properties of thin film heterostructures

B.J. Kirby, J. W. Lau, D. V. Williams, C. A. Bauer, and Casey W. Miller,

55th Conference on Magnetism and Magnetic Materials, Atlanta, Georgia, November, 2010.

   

Neutron reflectometry as a probe of nanoparticle distribution in polymer photovoltaics

B. J. Kirby, J. W.  Kiel, B. B. Maranville, C. F. Majkrzak, and M. Mackay,

American Physical Society March Meeting, Portland, Oregon, March 2010.


Exchange Coupling in Fe / GaMnAs multilayer structures

B. J. Kirby, J. Leiner, X. Liu, M. Dobrowolska, and J. K. Furdyna,

11th Joint Intermag / Magnetism and and Magnetic Materials Conference,

Washington D. C., January 2010.


Inhomogeneous magnetic depth profile of MnGe films

B. J. Kirby, M. Commisso-Dolph, J. Floro, and S. Wolf,

11th Joint Intermag / Magnetism and and Magnetic Materials Conference,

Washington D. C., January 2010.


Depth-Dependent Magnetic Anisotropy in Co/Pd Multilayers

B.J. Kirby, J. E. Davies, S. M.Watson, P.A. Kienzle,

R. D. Shull, J. A. Borchers, G. Zimanyi and Kai Liu,

American Physical Society March Meeting, Pittsburgh, Pennsylvania, March 2009.


Antiferromagnetic exchange coupling in GaMnAs /GaMnBeAs superlattices

B.J. Kirby, J. -H Chung, S. J. Chung, Sanghoon Lee,

J. A. Borchers, Y. J. Cho, X. Liu, and J. K. Furdyna

American Physical Society March Meeting, Pittsburgh, Pennsylvania, March 2009.


Anomalous Ferromagnetism in TbMnO3 Thin Films

B. J. Kirby, D. Kan, A. Luykx, M. Murakami, D. Kundaliya, and I. Takeuchi,

53rd Conference on Magnetism and Magnetic Materials, Austin, Texas 2008.


Origin of Anomalous Moment in Ferro/Antiferro LCMO Layers

B. J. Kirby & S. M. Watson, Jian Liu, M. Kareev, & J. Chakhalian, 

American Physical Society March Meeting, New Orleans, Louisiana, March 2008.


In-Plane & Depth-Dependent FM Ordering in a LSMO/Y(Pr)BCO Superlattice 

B.J. Kirby, C. Majkrzak, J. Chakhalian, J. W. Freeland,

H. U. Habermeier,  G. Cristiani, and B. Keimer, 

52nd Conference on Magnetism and Magnetic Materials, Tampa, Florida, November 2007.


Definitive Evidence of Interlayer Coupling Between Ga1-xMnxAs

Layers Separated by a Nonmagnetic Spacer 

B. J. Kirby, J. A. Borchers, X. Liu, Z. Ge, Y. Cho, M. Dobrowolska and J. K. Furdyna,

52nd Conference on Magnetism and Magnetic Materials, Tampa, Florida, November 2007.


Interlayer Exchange Coupling in Ga1-xMnxAs/GaAs Multilayers 

B. J. Kirby, M.R. Fitzsimmons, J. A. Borchers, X. Liu, Z. Ge, Y. Cho, and J. K. Furdyna,

American Physical Society March Meeting, Denver, Colorado, March 2007.


Pinned Spin Depth Profile of an Oxidized-Mn/Ga1-xMnxAs Exchange Bias Bilayer

B. J. Kirby, M.R. Fitzsimmons, J. A. Borchers, Z. Ge, X. Liu, and J. K. Furdyna,

10th Joint Magnetism and Magnetic Materials / Intermag Conference, Baltimore, MD, January 2007.


Magnetic and Chemical Depth Profiles of an Exchange-Biased MnO/GaMnAs Bilayer

B. J. Kirby, J. A. Borchers, M. R. Fitzsimmons, J. J. Rhyne, X. Liu, Z. Ge, and J. K. Furdyna,

American Physical Society March Meeting.  Baltimore, Maryland, March 2006.


Surface Magnetization Deficit in Ga1-xMnxAs

B.J. Kirby, J. J. Rhyne, J. A. Borchers, S. Roy, Cecilia Sanchez-Hanke,

X. Liu, W. L. Lim, and J. K. Furdyna. 

50th Conference on Magnetism and Magnetic Materials, San Jose, California, November 2005.


Polarized Neutron Reflectivity as a Probe of Nuclear Polarization in GaAs

B. J. Kirby, M. R. Fitzsimmons, S. Park, F. Trouw, A. Shapiro, D. Smith, J. A. Borchers, C. F. Majkrzak, T. R. Gentile, W. Chen, P. Crowell, C. Adelmann, C. Palmstrøm, and R. Pynn. 

7th LANSCE User Group Meeting, Los Alamos, New Mexico, September 2005.


Effects of Capping on the Ga1-xMnxAs Magnetic Depth Profile

B.J. Kirby, J. J. Rhyne, J. A. Borchers, K. V. O’Donovan,

T. Wojtowicz, X. Liu, Z. Ge, S. Shen, and J. K. Furdyna. 

49th Conference on Magnetism and Magnetic Materials, Jacksonville, Florida, November 2004. 


Annealing-Dependent Phenomena in Ga1-xMnxAs

B. J. Kirby, J. J. Rhyne, J. A. Borchers, K. V. O’Donovan, S. G. E. te Velthuis, A. Hoffmann, T. Wojtowicz, X. Liu, W. L. Lim, and J. K. Furdyna, American Conference on Neutron Scattering, College Park, Maryland, June 2004.


Magnetic Depth Profile and Annealing Dependence in Ga1-xMnxAs

B. J. Kirby, J. J. Rhyne, J. A. Borchers, K. V. O’Donovan, S. G. E. te Velthuis,

A. Hoffmann, J. K. Furdyna, T. Wojtowicz, and X. Liu,

9th Joint MMM/Intermag Conference, Anaheim, California, January 2004. 


Depth Profile & Annealing Dependence in Ga1-xMnxAs

J. J. Rhyne, B. J. Kirby, S. G. E. te Velthuis, A. Hoffmann ,J. A. Borchers,

K. V. O’Donovan, J. K. Furdyna, T. Wojtowicz, and X. Liu,

International Conference on Magnetism, Rome, Italy, August 2003.


Magnetization Profile in GaMnAs

J. J. Rhyne, B. J. Kirby, S. G. E. te Velthuis, A. Hoffmann, T. Wojtowicz, X. Liu, and J. K. Furdyna,

Bulletin of the American Physical Society  48, # 1 (March 2003).