Quasiparticle relaxation dynamics in heavy fermion compounds

被引：68

作者：

Demsar, J

Averitt, RD

Ahn, KH

Graf, MJ

Trugman, SA

Kabanov, VV

Sarrao, JL

Taylor, AJ

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] Jozef Stefan Inst, SI-1000 Ljubljana, Slovenia

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.91.027401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first femtosecond studies of electron-phonon (e-ph) thermalization in heavy-fermion compounds. The e-ph thermalization time tau(ep) increases below the Kondo temperature by more than 2 orders of magnitude as T=0 K is approached. Analysis using the two-temperature model and numerical simulations based on Boltzmann's equations suggest that this anomalous slowing down of the e-ph thermalization derives from the large electronic specific heat and the suppression of scattering between heavy electrons and phonons.

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相关论文

共 18 条

[1]

AHN KS, UNPUB

[2] THEORY OF THERMAL RELAXATION OF ELECTRONS IN METALS [J].

ALLEN, PB .

PHYSICAL REVIEW LETTERS, 1987, 59 (13) :1460-1463

[3]

Anisimov S. I., 1975, SOV PHYS JETP, V39, P375, DOI DOI 10.1016/J.JMATPROTEC.2009.05.031

[4] Nonequilibrium superconductivity and quasiparticle dynamics in YBa2Cu3O7-δ -: art. no. 140502 [J].

Averitt, RD ;

Rodriguez, G ;

Lobad, AI ;

Siders, JLW ;

Trugman, SA ;

Taylor, AJ .

PHYSICAL REVIEW B, 2001, 63 (14)

[5] FEMTOSECOND ROOM-TEMPERATURE MEASUREMENT OF THE ELECTRON-PHONON COUPLING CONSTANT-LAMBDA IN METALLIC SUPERCONDUCTORS [J].

BRORSON, SD ;

KAZEROONIAN, A ;

MOODERA, JS ;

FACE, DW ;

CHENG, TK ;

IPPEN, EP ;

DRESSELHAUS, MS ;

DRESSELHAUS, G .

PHYSICAL REVIEW LETTERS, 1990, 64 (18) :2172-2175

[6] The electrodynamic response of heavy-electron compounds [J].

Degiorgi, L .

REVIEWS OF MODERN PHYSICS, 1999, 71 (03) :687-734

[7] Single particle and collective excitations in the one-dimensional charge density wave solid K0.3MoO3 probed in real time by femtosecond spectroscopy [J].

Demsar, J ;

Biljakovic, K ;

Mihailovic, D .

PHYSICAL REVIEW LETTERS, 1999, 83 (04) :800-803

[8] TIME-RESOLVED OBSERVATION OF ELECTRON-PHONON RELAXATION IN COPPER [J].

ELSAYEDALI, HE ;

NORRIS, TB ;

PESSOT, MA ;

MOUROU, GA .

PHYSICAL REVIEW LETTERS, 1987, 58 (12) :1212-1215

[9] RESISTIVITY, MAGNETIZATION, AND SPECIFIC-HEAT OF YBAGCU4 IN HIGH MAGNETIC-FIELDS [J].

GRAF, T ;

LAWRENCE, JM ;

HUNDLEY, MF ;

THOMPSON, JD ;

LACERDA, A ;

HAANAPPEL, E ;

TORIKACHVILI, MS ;

FISK, Z ;

CANFIELD, PC .

PHYSICAL REVIEW B, 1995, 51 (21) :15053-15061

[10] FEMTOSECOND SPECTROSCOPY OF ELECTRON-ELECTRON AND ELECTRON-PHONON ENERGY RELAXATION IN AG AND AN [J].

GROENEVELD, RHM ;

SPRIK, R ;

LAGENDIJK, A .

PHYSICAL REVIEW B, 1995, 51 (17) :11433-11445