Quantum critical behavior in heavy-fermion superconductor CeIrIn5

被引：15

作者：

Kambe, S. ^{[1
]}

Sakai, H. ^{[1
]}

Tokunaga, Y. ^{[1
]}

Walstedt, R. E. ^{[2
]}

机构：

[1] Japan Atom Energy Agcy, Adv Sci Res Ctr, Ibaraki 3191195, Japan

[2] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 14期

关键词：

THERMAL-PROPERTIES; FLUCTUATIONS;

D O I：

10.1103/PhysRevB.82.144503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on analysis of nuclear (In-115) spin-lattice relaxation-time measurements on the heavy-fermion superconductor CeIrIn5, (q) over right arrow, omega, and temperature dependences of the dynamical susceptibility Im chi((q) over right arrow, omega(n)) near the antiferromagnetic wave vector (Q) over right arrow at low energy omega(n) similar to 10(-4) meV have been estimated. The T dependences found, Im chi((Q) over right arrow, omega(n)) similar to T-3/2 and antiferromagnetic correlation length xi similar to T-3/4, are consistent with quantum critical behavior for a three-dimensional antiferromagnet (d=3, z=2) having a spin-density-wave instability.

引用

页数：7

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