Ising-like antiferromagnetism in Ca9La5Cu24O41

被引：26

作者：

Ammerahl, U

Büchner, B

Kerpen, C

Gross, R

Revcolevschi, A

机构：

[1] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany

[2] Univ Paris Sud, UMR 8648, Lab Physicochim Solides, F-91405 Orsay, France

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.62.R3592

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Specific heat measurements of a Ca9La5Cu24O41 single crystal in magnetic fields up to 14 T along the three principal axes were performed. Anomalies of the specific heat indicating long-range antiferromagnetic order are strongly field dependent and exhibit an extreme anisotropy with respect to the magnetic field orientation. In addition, large magnetic contributions to the specific heat above the phase transition were observed revealing the low dimensional character of the chains. Our data strongly suggest that the chains in Ca9La5Cu24O41 exhibit an Ising-like antiferromagnetism.

引用

收藏

页码：R3592 / R3595

页数：4

相关论文

共 21 条

[1] Crystal growth of the spin-ladder compound (Ca,La)14Cu24O41 and observation of one-dimensional disorder [J].

Ammerahl, U ;

Revcolevschi, A .

JOURNAL OF CRYSTAL GROWTH, 1999, 197 (04) :825-832

[2] OBSERVATION OF A SPIN GAP IN SRCU2O3 COMPRISING SPIN-1/2 QUASI-1D 2-LEG LADDERS [J].

AZUMA, M ;

HIROI, Z ;

TAKANO, M ;

ISHIDA, K ;

KITAOKA, Y .

PHYSICAL REVIEW LETTERS, 1994, 73 (25) :3463-3466

[3] Competing exchange interactions in Li2CuO2 [J].

Boehm, M ;

Coad, S ;

Roessli, B ;

Zheludev, A ;

Zolliker, M ;

Boni, P ;

Paul, DM ;

Eisaki, H ;

Motoyama, N ;

Uchida, S .

EUROPHYSICS LETTERS, 1998, 43 (01) :77-82

[4] Hole doping of the CuO2 chains in (La,Sr,Ca)(14)Cu24O41 [J].

Carter, SA ;

Batlogg, B ;

Cava, RJ ;

Krajewski, JJ ;

Peck, WF ;

Rice, TM .

PHYSICAL REVIEW LETTERS, 1996, 77 (07) :1378-1381

[5] Surprises on the way from one- to two-dimensional quantum magnets: The ladder materials [J].

Dagotto, E ;

Rice, TM .

SCIENCE, 1996, 271 (5249) :618-623

[6] EXPERIMENTS ON SIMPLE MAGNETIC MODEL SYSTEMS [J].

DEJONGH, LJ ;

MIEDEMA, AR .

ADVANCES IN PHYSICS, 1974, 23 (01) :1-260

[7] Reexamination of the microscopic couplings of the quasi-one-dimensional antiferromagnet CuGeO3 [J].

Fabricius, K ;

Klumper, A ;

Low, U ;

Buchner, B ;

Lorenz, T ;

Dhalenne, G ;

Revcolevschi, A .

PHYSICAL REVIEW B, 1998, 57 (02) :1102-1107

[8] Influence of side groups on 90 degrees superexchange: A modification of the Goodenough-Kanamori-Anderson rules [J].

Geertsma, W ;

Khomskii, D .

PHYSICAL REVIEW B, 1996, 54 (05) :3011-3014

[9] OBSERVATION OF THE SPIN-PEIERLS TRANSITION IN LINEAR CU2+ (SPIN-1/2) CHAINS IN AN INORGANIC COMPOUND CUGEO3 [J].

HASE, M ;

TERASAKI, I ;

UCHINOKURA, K .

PHYSICAL REVIEW LETTERS, 1993, 70 (23) :3651-3654

[10] Spin gap in the hole-doped spin ladder system (Sr2.5Ca11.5)Cu2O41:: Neutron inelastic scattering study [J].

Katano, S ;

Nagata, T ;

Akimitsu, J ;

Nishi, M ;

Kakurai, K .

PHYSICAL REVIEW LETTERS, 1999, 82 (03) :636-639