Magnetic-field-dependent quasiparticle energy relaxation in mesoscopic wires

被引：69

作者：

Anthore, A ^{[1
]}

Pierre, F ^{[1
]}

Pothier, H ^{[1
]}

Esteve, D ^{[1
]}

机构：

[1] CEA Saclay, Direct Sci Mat, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.90.076806

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In order to find out if magnetic impurities can mediate interactions between quasiparticles in metals, we have measured the effect of a magnetic field B on the energy distribution function f(E) of quasiparticles in two silver wires driven out of equilibrium by a bias voltage U. In a sample showing sharp distributions at B=0, no magnetic field effect is found, whereas, in the other sample, rounded distributions at low magnetic field get sharper as B is increased, with a characteristic field proportional to U. Comparison is made with recent calculations of the effect of magnetic-impurities-mediated interactions taking into account Kondo physics.

引用

页数：4

共 24 条

[1]

Altshuler B.L., 1985, ELECT ELECT INTERACT

[2]

[Anonymous], MAGNETISM

[3]

ANTHORE A, 2001, ELECT CORRELATIONS M

[4] Magnetic-field effects in energy relaxation mediated by Kondo impurities in mesoscopic wires -: art. no. 195328 [J].

Göppert, G ;

Galperin, YM ;

Altshuler, BL ;

Grabert, H .

PHYSICAL REVIEW B, 2002, 66 (19) :1-13

[5] Nonequilibrium electron distribution in the presence of Kondo impurities -: art. no. 033301 [J].

Göppert, G ;

Grabert, H .

PHYSICAL REVIEW B, 2001, 64 (03)

[6]

Ingold G.-L., 1992, SINGLE CHARGE TUNNEL

[7] Electron-electron interactions in disordered metals: Keldysh formalism [J].

Kamenev, A ;

Andreev, A .

PHYSICAL REVIEW B, 1999, 60 (04) :2218-2238

[8] Electron energy relaxation in the presence of magnetic impurities [J].

Kaminski, A ;

Glazman, LI .

PHYSICAL REVIEW LETTERS, 2001, 86 (11) :2400-2403

[9] SHOT-NOISE IN MESOSCOPIC DIFFUSIVE CONDUCTORS IN THE LIMIT OF STRONG ELECTRON-ELECTRON SCATTERING [J].

KOZUB, VI ;

RUDIN, AM .

PHYSICAL REVIEW B, 1995, 52 (11) :7853-7856

[10] Nonequilibrium quasiparticle distribution induced by Kondo defects [J].

Kroha, J ;

Zawadowski, A .

PHYSICAL REVIEW LETTERS, 2002, 88 (17) :1768031-1768034

← 1 2 3 →