Scaling in dynamic susceptibility of herbertsmithite and heavy-fermion metals

被引：11

作者：

Shaginyan, V. R. ^{[1
,2
]}

Msezane, A. Z. ^{[2
]}

Popov, K. G. ^{[3
]}

Khodel, V. A. ^{[4
,5
,6
]}

机构：

[1] Petersburg Nucl Phys Inst, Gatchina 188300, Russia

[2] Clark Atlanta Univ, Atlanta, GA 30314 USA

[3] RAS, Ural Div, Komi Sci Ctr, Syktyvkar 167982, Russia

[4] Russian Res Ctr, Kurchatov Inst, Moscow 123182, Russia

[5] Washington Univ, Dept Phys, St Louis, MO 63130 USA

[6] Washington Univ, McDonnell Ctr Space Sci, St Louis, MO 63130 USA

来源：

PHYSICS LETTERS A | 2012年 / 376卷 / 38-39期

基金：

美国国家科学基金会;

关键词：

Quantum phase transitions; Strongly correlated spin liquid; Heavy fermions; Dynamic magnetic susceptibility; Spin-lattice relaxation rate; LIQUID;

D O I：

10.1016/j.physleta.2012.07.005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a theory of the dynamic magnetic susceptibility of quantum spin liquid. The obtained results are in good agreement with experimental facts collected on herbertsmithite ZnCu3(OH)(6)Cl-2 and on heavy-fermion metals, and allow us to predict a new scaling in magnetic fields in the dynamic susceptibility. Under the application of strong magnetic fields quantum spin liquid becomes completely polarized. We show that this polarization can be viewed as a manifestation of gapped excitations when investigating the spin-lattice relaxation rate. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：2622 / 2626

页数：5

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