Anisotropic spin excitations in spin-Peierls CuGeO3

被引：2

作者：

Ikeuchi, Kazuhiko ^{[1
]}

Kajimoto, Ryoichi ^{[1
]}

Mizuno, Fumio ^{[2
]}

Fujita, Masaki ^{[3
]}

Inamura, Yasuhiro ^{[4
]}

Nakamura, Mitsutaka ^{[4
]}

Nakajima, Kenji ^{[4
]}

Aizawa, Kazuya ^{[4
]}

Arai, Masatoshi ^{[4
]}

机构：

[1] CROSS, Res Ctr Neutron Sci & Technol, Ibaraki 3191106, Japan

[2] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[3] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[4] J PARC Ctr, Neutron Sci Sect, Ibaraki 3191195, Japan

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2013年 / 63卷 / 03期

关键词：

CuGeO3; One-dimensional quantum spin system; Inter-chain interaction; Inelastic neutron scattering experiment; TRANSITION;

D O I：

10.3938/jkps.63.333

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the investigation of spin excitations in CuGeO3 at a low temperature by using inelastic neutron scattering on a pulsed source with a time-of-flight analysis. By observing the dispersion relation of spin excitations not only along the chain direction but also along the inter chain direction, we studied spin correlations in the S = 1/2 Heisenberg chains, as well as between the chains, in detail. The results show a clear anisotropy of the magnetic excitations at a temperature below the spin-Peierls transition temperature.

引用

页码：333 / 336

页数：4

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