Electronic competing phases and their magnetic field dependence in
electron-doped Pr0.88LaCe0.12CuO4±x (PLCCO)
Hye Jung Kang, Department of Physics, University of Tennessee
The interplay between the competing phases in high-Tc superconductivity has
been one of the important issues in condensed matter physics and intensive
work has been done on this topic both experimentally and theoretically.
Previous field-induced effects on hole-doped LSCO and electron-doped NCCO
suggest that the antiferromagnetism competes with superconductivity. In the
Pr system we find that quasi-2 dimensional commensurate antiferromagnetism
coexists with superconductivity and 3 dimensional antiferromagnetism. To
determine whether the antiferromagnetism is the competing order in high-Tc
cuprates regardless hole or electron-doping, we
performed field-induced experiments on electron-doped superconductor PLCCO
(x=0.12) by applying magnetic fields both along the c-direction and in the
ab-plane. The anisotropy of the field-induced moment demonstrates the
competing nature of these two order parameters.
Back to Seminar Home Page
Last modified 18-January-2005 by website owner: NCNR (attn: )
