Pressure-induced change of the interlayer exchange interaction from ferromagnetic to antiferromagnetic in Cs2CuF4 observed by neutron scattering experiments up to 2 GPa

被引:5
作者
Manaka, H
Nishi, M
Yamada, I
机构
[1] Chiba Univ, Fac Sci, Dept Phys, Inage Ku, Chiba 2638522, Japan
[2] Univ Tokyo, Inst Solid State Phys, Tokyo 1068666, Japan
关键词
Cs2CuF4; K2CuF4; orbital ordering; pressure-induced magnetic phase transition; neutron scattering;
D O I
10.1080/08957950008245904
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Neutron scattering experiments on the two-dimensional Heisenberg ferrogmagnets Cs-2 CuF4 and K2CuF4 have been performed around 2 similar to 3 GPa over 1.4-15 K. At ambient pressure both the intralayer and the interlayer exchange interactions in these two compounds are ferromagnetic. At about 2 GPa, the interlayer exchange coupling in Cs-2 CuF4 is found to change from ferromagnetic to antiferromagnetic, while the ferromagnetic intralayer exchange interaction is maintained. Contrary to Cs2CuF4, the ferromagnetism in K2CuF4 is not destroyed by pressure up to 9 GPa, that was confirmed in the early study of the magnetic susceptibility measurements.
引用
收藏
页码:171 / 177
页数:7
相关论文
共 6 条
[1]   Pressure-induced structural phase transition in the two-dimensional Heisenberg ferromagnet K2CuF4 [J].
Ishizuka, M ;
Terai, M ;
Hidaka, M ;
Endo, S ;
Yamada, I ;
Shimomura, O .
PHYSICAL REVIEW B, 1998, 57 (01) :64-67
[2]   Change of magnetism in the two-dimensional Heisenberg ferromagnet K2CuF4 observed at high pressures [J].
Ishizuka, M ;
Yamada, I ;
Amaya, K ;
Endo, S .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1996, 65 (07) :1927-1929
[3]  
KHOMSKII DI, 1974, SOLID STATE COMMUN, V13, P764
[4]   Observation of pressure-induced structural transition in K2CuF4 by phonon-Raman scattering experiments: Change of the orbital ordering by pressure [J].
Manaka, H ;
Yamada, I ;
Kitazawa, T ;
Kobayashi, M ;
Ishizuka, M ;
Endo, S .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1997, 66 (10) :2989-2992
[5]   HIGH-PRESSURE-CELL FOR NEUTRON-SCATTERING [J].
ONODERA, A ;
NAKAI, Y ;
KUNITOMI, N ;
PRINGLE, OA ;
SMITH, HG ;
NICKLOW, RM ;
MOON, RM ;
AMITA, F ;
YAMAMOTO, N ;
KAWANO, S ;
ACHIWA, N ;
ENDOH, Y .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1987, 26 (01) :152-156
[6]  
TERAI M, 1997, SECT M PHYS SOC JAP