Field-induced staggered magnetization near impurities in the S=1/2 one-dimensional Heisenberg antiferromagnet Sr2CuO3

被引：86

作者：

Takigawa, M ^{[1
]}

Motoyama, N ^{[1
]}

Eisaki, H ^{[1
]}

Uchida, S ^{[1
]}

机构：

[1] UNIV TOKYO,DEPT SUPERCONDUCT,TOKYO 113,JAPAN

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.55.14129

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report an impurity effect in the spin-1/2 one-dimensional Heisenberg antiferromagnet Sr2CuO3. The Cu-63 NMR spectra develop a broad background with sharp edges at low temperatures. The anisotropy and the temperature dependence of this structure indicate that the external magnetic field induces local staggered magnetization near impurities, whose spatial extent grows with decreasing temperature. The results are in good agreement with the theoretical prediction by Eggert and Affleck for a semi-infinite spin chain with an open end.

引用

收藏

页码：14129 / 14132

页数：4

相关论文

共 17 条

[1] MAGNETIC-SUSCEPTIBILITY AND LOW-TEMPERATURE STRUCTURE OF THE LINEAR-CHAIN CUPRATE SR2CUO3 [J].

AMI, T ;

CRAWFORD, MK ;

HARLOW, RL ;

WANG, ZR ;

JOHNSTON, DC ;

HUANG, Q ;

ERWIN, RW .

PHYSICAL REVIEW B, 1995, 51 (09) :5994-6001

[2] IMPURITIES IN S=1/2 HEISENBERG ANTIFERROMAGNETIC CHAINS - CONSEQUENCES FOR NEUTRON-SCATTERING AND KNIGHT-SHIFT [J].

EGGERT, S ;

AFFLECK, I .

PHYSICAL REVIEW LETTERS, 1995, 75 (05) :934-937

[3] MAGNETIC-IMPURITIES IN HALF-INTEGER-SPIN HEISENBERG ANTIFERROMAGNETIC CHAINS [J].

EGGERT, S ;

AFFLECK, I .

PHYSICAL REVIEW B, 1992, 46 (17) :10866-10883

[4] Accurate determination of the exchange constant in Sr2CuO3 from recent theoretical results [J].

Eggert, S .

PHYSICAL REVIEW B, 1996, 53 (09) :5116-5118

[5]

EGGERT S, 1994, THESIS U BRIT COLUMB

[6]

EGGERT S, COMMUNICATION

[7] OBSERVATION OF S = 1/2 DEGREES OF FREEDOM IN AN S = 1 LINEAR-CHAIN HEISENBERG-ANTIFERROMAGNET [J].

HAGIWARA, M ;

KATSUMATA, K ;

AFFLECK, I ;

HALPERIN, BI ;

RENARD, JP .

PHYSICAL REVIEW LETTERS, 1990, 65 (25) :3181-3184

[8] EFFECTS OF SUBSTITUTION OF ZN FOR CU IN THE SPIN-PEIERLS CUPRATE, CUGEO3 - THE SUPPRESSION OF THE SPIN-PEIERLS TRANSITION AND THE OCCURRENCE OF A NEW SPIN-GLASS STATE [J].

HASE, M ;

TERASAKI, I ;

SASAGO, Y ;

UCHINOKURA, K ;

OBARA, H .

PHYSICAL REVIEW LETTERS, 1993, 71 (24) :4059-4062

[9]

KERREN A, 1993, PHYS REV B, V48, P12926

[10] Reduced size of ordered moments of a quasi 1d antiferromagnet Sr2CuO3 [J].

Kojima, K ;

Larkin, M ;

Luke, GM ;

Nachumi, B ;

Uemura, YJ ;

Eisaki, H ;

Motoyama, M ;

Uchida, S ;

Sternlieb, BJ ;

Shirane, G .

CZECHOSLOVAK JOURNAL OF PHYSICS, 1996, 46 :1945-1946