Quantum critical behavior in heavy-fermion superconductor CeIrIn

Kambe, Shinsaku ; Sakai, Hironori ; Tokunaga, Yo ; Walstedt, R. E.*

Based on analysis of nuclear ( $^{115}$ In) spin-lattice relaxation time measurements on the heavy fermion superconductor CeIrIn, , , and temperature-dependences of the dynamical susceptibility Im $chi(vec{q},omega_n)$ near the antiferromagnetic wave vector at low energy $omega_n sim 10^{-4}$ meV have been estimated. The -dependences found, Im $chi(vec{Q},omega_n) sim T^{-3/2}$ and antiferromagnetic correlation length $xisim T^{-3/4}$ , are consistent with quantum critical behavior for a three dimensional antiferromagnet (=3, =2) having a spin density wave instability.

Language	:	English
Journal	:	Physical Review B
Volume	:	82
Number	:	14
Pages	:	p.144503_1 - 144503_7
Publication Year/Month	:	2010/10
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Paper URL	:	https://doi.org/10.1103/PhysRevB.82.144503
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Keywords	:	no keyword
Research Facility	:	第4研究棟
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InCites™	:	Percentile:55.02 Category:Materials Science, Multidisciplinary
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Registration No. : AA20100632
JAEA Abstracts No. : 39000047
Paper Submission No. : 8282

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