Spin structure of S=1/2 quantum spin system CaV3O7

被引：26

作者：

Harashina, H ^{[1
]}

Kodama, K ^{[1
]}

Shamoto, S ^{[1
]}

Taniguchi, S ^{[1
]}

Nishikawa, T ^{[1
]}

Sato, M ^{[1
]}

Kakurai, K ^{[1
]}

Nishi, M ^{[1
]}

机构：

[1] UNIV TOKYO, INST SOLID STATE PHYS, MINATO KU, TOKYO 106, JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1996年 / 65卷 / 06期

关键词：

CaV3O7; quantum spin system; antiferromagnetic spin structure;

D O I：

10.1143/JPSJ.65.1570

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The spin structure of magnetically ordered CaV3O7 has been determined by neutron powder diffraction. The structure is different from that expected within a simple classical Heisenberg model and therefore quantum effects seem to be significant in this system. By comparing the ordered moments of V4+ spins at two distinct sites with those derived using the modified spin wave theory [Kontani et al.: J. Phys. Soc. Jpn. 65 (1996) 1566.], information on the exchange coupling constants between V-spins can be obtained.

引用

页码：1570 / 1573

页数：4

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