Magnetic excitations in the charge ordered state of Yb4As3 and Yb4(As0.6P0.4)3

被引:19
作者
Kohgi, M
Iwasa, K
Mignot, JM
Pyka, N
Ochiai, A
Aoki, H
Suzuki, T
机构
[1] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan
[2] CEA Saclay, Leon Brillouin Lab, F-91191 Gif Sur Yvette, France
[3] Inst Laue Langevin, F-38042 Grenoble, France
[4] Niigata Univ, Niigata 9502181, Japan
[5] Tohoku Univ, Sendai, Miyagi 9808578, Japan
关键词
Yb4As3; heavy electron; low-carrier system; charge ordering; neutron scattering;
D O I
10.1016/S0921-4526(98)00689-9
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Detailed inelastic neutron scattering studies on the low-carrier heavy-electron system Yb4As3 and the semi-conducting mixed compound Yb-4(AS(0.6)P(0.4))(3) reveal that the charge ordering phenomenon, which leads to one-dimensional properties, is common to both compounds. No definite magnetic response other than the one-dimensional spin excitations was observed from the pure material Yb4As3, which exhibits a heavy-electron anomaly in its transport properties, for energy transfers above about 0.3 meV. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:269 / 270
页数:2
相关论文
共 4 条
[1]   Charge order and one-dimensional properties of Yb4As3 [J].
Kohgi, M ;
Iwasa, K ;
Ochiai, A ;
Suzuki, T ;
Mignot, JM ;
Gillon, B ;
Gukasov, A ;
Schweizer, J ;
Kakurai, K ;
Nishi, M ;
Donni, A ;
Osakabe, T .
PHYSICA B, 1997, 230 :638-640
[2]   One-dimensional antiferromagnetic coupling in the low-carrier heavy-electron system Yb4As3: The role of charge ordering [J].
Kohgi, M ;
Iwasa, K ;
Mignot, JM ;
Ochiai, A ;
Suzuki, T .
PHYSICAL REVIEW B, 1997, 56 (18) :11388-11391
[3]   HEAVY FERMION BEHAVIOR IN EXTREMELY LOW CARRIER CONCENTRATION SYSTEM YB4AS3 [J].
OCHIAI, A ;
SUZUKI, T ;
KASUYA, T .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1990, 59 (11) :4129-4141
[4]   Strongly correlated electron system without free carrier Yb-4(As1-xPx)(3) [J].
Ochiai, A ;
Aoki, H ;
Suzuki, T ;
Helfrich, R ;
Steglich, F .
PHYSICA B, 1997, 230 :708-710