Experimental verification of the gapless point in the S=1 antiferromagnetic bond alternating chain

被引：59

作者：

Hagiwara, M ^{[1
]}

Narumi, Y

Kindo, K

Kohno, M

Nakano, H

Sato, R

Takahashi, M

机构：

[1] RIKEN, Inst Phys & Chem Res, Wako, Saitama 35101, Japan

[2] Osaka Univ, KYOKUGEN, Toyonaka, Osaka 560, Japan

[3] Japan Sci & Technol Corp, CREST, Tokyo, Japan

[4] Univ Tokyo, Inst Solid State Phys, Tokyo 106, Japan

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.80.1312

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Susceptibility and high field magnetization measurements have been performed on powdered samples of [{Ni(333-tet)(mu-N-3)}(n)](ClO4)(n) [333-tet denotes tetraamine N,N'-bis(3-aminopropyl)-1,3-propanediamine]. As the temperature is decreased, the susceptibility exhibits a smooth maximum around 120 K and decreases gradually down to 10 K, and then decreases rapidly. Magnetization up to 50 T at 1.4 K shows no gap in this compound within the experimental accuracy, We have carried our numerical calculations for the S = 1 antiferromagnetic bond alternating chain and obtained very good agreement between experiments and calculations for the alternating ratio alpha = 0.6.

引用

页码：1312 / 1315

页数：4

共 41 条

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