Non-equilibrium thermodynamics of the longitudinal spin Seebeck effect

被引：1

作者：

Basso, Vittorio ^{[1
]}

Ferraro, Elena ^{[1
]}

Sola, Alessandro ^{[1
]}

Magni, Alessandro ^{[1
]}

Kuepferling, Michaela ^{[1
]}

Pasquale, Massimo ^{[1
]}

机构：

[1] Ist Nazl Ric Metrol, Str Cacce 91, I-10135 Turin, Italy

来源：

20TH INTERNATIONAL CONFERENCE ON MAGNETISM, ICM 2015 | 2015年 / 75卷

关键词：

spin Seebeck effect; non equilibrium thermodynamics; yttrium iron garnet;

D O I：

10.1016/j.phpro.2015.12.129

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper we employ non equilibrium thermodynamics of fluxes and forces to describe magnetization and heat transport. By the theory we are able to identify the thermodynamic driving force of the magnetization current as the gradient of the effective field del H*. This definition permits to define the spin Seebeck coefficient epsilon(M) which relates del H* and the temperature gradient del T. By applying the theory to the geometry of the longitudinal spin Seebeck effect we are able to obtain the optimal conditions for generating large magnetization currents. Furthermore, by using the results of recent experiments, we obtain an order of magnitude for the value of epsilon(M) similar to 10(-2) TK-1 for yttrium iron garnet (Y3Fe5O12).

引用

页码：939 / 947

页数：9

共 20 条

[1] Theory of the spin Seebeck effect [J].

Adachi, Hiroto ;

Uchida, Ken-ichi ;

Saitoh, Eiji ;

Maekawa, Sadamichi .

REPORTS ON PROGRESS IN PHYSICS, 2013, 76 (03)

[2]

Basso V., THERMODYNAMIC UNPUB

[3]

Bauer GEW, 2012, NAT MATER, V11, P391, DOI [10.1038/nmat3301, 10.1038/NMAT3301]

[4]

Callen HB., 1985, Thermodynamics and an Introduction to Thermostatistics

[5]

Cornelissen L. J., 2015, 150506325 ARXIV

[6]

Giles B. L., 2014, 150402808 ARXIV

[7] Thermodynamic description of heat and spin transport in magnetic nanostructures [J].

Gravier, L ;

Serrano-Guisan, S ;

Reuse, F ;

Ansermet, JP .

PHYSICAL REVIEW B, 2006, 73 (02)

[8] THERMODYNAMIC ANALYSIS OF INTERFACIAL TRANSPORT AND OF THE THERMOMAGNETOELECTRIC SYSTEM [J].

JOHNSON, M ;

SILSBEE, RH .

PHYSICAL REVIEW B, 1987, 35 (10) :4959-4972

[9] Influence of interface condition on spin-Seebeck effects [J].

Qiu, Z. ;

Hou, D. ;

Uchida, K. ;

Saitoh, E. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2015, 48 (16)

[10]

Ramos R., 2015, 150305594 ARXIV

← 1 2 →