NEUTRON-DIFFRACTION STUDY OF ANTIFERROMAGNETIC ORDER IN THE KONDO COMPOUND CEPDSN

被引:14
作者
KADOWAKI, H [1 ]
KOHGI, M [1 ]
OHOYAMA, K [1 ]
KASAYA, M [1 ]
机构
[1] TOHOKU UNIV, FAC SCI, DEPT PHYS, SENDAI, MIYAGI 980, JAPAN
关键词
KONDO COMPOUND; MAGNETIC STRUCTURE; ANTIFERROMAGNET; NEUTRON DIFFRACTION; CEPDSN; MAXIMUM ENTROPY METHOD;
D O I
10.1143/JPSJ.63.2337
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Magnetic structure of the Kondo compound CePdSn is studied by neutron diffraction experiments on a single-crystalline sample. Below T(N)=7 K, Ce moments establish a single-Q type ordering S(nv)=a(v) e(ik.R(n) + a(v)* e(-ik.R(n)) with incommensurate modulation vector k=0.473b*. The polarization vectors a(v) cannot uniquely be determined from scattering intensities, and thus those which reproduce the intensities are selected using a maximum entropy method. The polarization vectors have a, b and c components with root mean square of the moment m(rms)=0.82+/-0.08 mu(B) (m(rms)a=0.59, M(rms)b=0.48, m(rms)c=0.30 mu(B)) at T = 1.5 K.
引用
收藏
页码:2337 / 2342
页数:6
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