New inorganic spin-Peierls compound NaV2O5 evidenced by X-ray and neutron scattering

被引：185

作者：

Fujii, Y

Nakao, H

Yosihama, T

Nishi, M

Nakajima, K

Kakurai, K

Isobe, M

Ueda, Y

Sawa, H

机构：

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

[2] CHIBA UNIV, FAC SCI, DEPT PHYS, INAGE KU, CHIBA 263, JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1997年 / 66卷 / 02期

关键词：

spin-Peierls transition; 1-D magnet; spin gap; lattice dimerization; NaV2O5; X-ray scattering; neutron scattering;

D O I：

10.1143/JPSJ.66.326

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this letter w e report lattice dimerization and spin-gap formation of NaV2O5 below its spin-Peierls transition temperature T-sp, = 35.3 K, in which there are V4+ (S = 1/2) linear chains along the b axis of its orthorhombic structure. A single-crystal X-ray scattering experiment shows scattering from a powder sample at T = 7K clearly demonstrates a gap energy of 9.8 meV at a scattering vector \Q\ = 1.0 Angstrom(-1) corresponding to the reciprocal lattice point (1, 1/2, 0).

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页码：326 / 329

页数：4

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