Nernst effect in semimetals:: The effective mass and the figure of merit

被引：85

作者：

Behnia, Kamran

Measson, Marie-Aude

Kopelevich, Yakov

机构：

[1] ESPCI, CNRS, Phys Quant Lab, F-75231 Paris, France

[2] Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

[3] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.98.076603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a study of electric, thermal, and thermoelectric transport in elemental bismuth, which presents a Nernst coefficient much larger than what was found in correlated metals. We argue that this is due to the combination of an exceptionally low carrier density with a very long electronic mean-free path. The low thermomagnetic figure of merit is traced to the lightness of electrons. Heavy-electron semimetals, which keep a metallic behavior in the presence of a magnetic field, emerge as promising candidates for thermomagnetic cooling at low temperatures.

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共 35 条

[1] Anomalous heavy-fermion and ordered states in the filled skutterudite PrFe4P12 -: art. no. 064446 [J].

Aoki, Y ;

Namiki, T ;

Matsuda, TD ;

Abe, K ;

Sugawara, H ;

Sato, H .

PHYSICAL REVIEW B, 2002, 65 (06) :1-7

[2] Thermal transport in the hidden-order state of URu2Si2 -: art. no. 156405 [J].

Behnia, K ;

Bel, R ;

Kasahara, Y ;

Nakajima, Y ;

Jin, H ;

Aubin, H ;

Izawa, K ;

Matsuda, Y ;

Flouquet, J ;

Haga, Y ;

Onuki, Y ;

Lejay, P .

PHYSICAL REVIEW LETTERS, 2005, 94 (15)

[3] Thermoelectricity of URu2Si2:: Giant Nernst effect in the hidden-order state -: art. no. 220501 [J].

Bel, R ;

Jin, H ;

Behnia, K ;

Flouquet, J ;

Lejay, P .

PHYSICAL REVIEW B, 2004, 70 (22) :220501-1

[4] Giant Nernst effect in CeCoIn5 -: art. no. 217002 [J].

Bel, R ;

Behnia, K ;

Nakajima, Y ;

Izawa, K ;

Matsuda, Y ;

Shishido, H ;

Settai, R ;

Onuki, Y .

PHYSICAL REVIEW LETTERS, 2004, 92 (21) :217002-1

[5] Ambipolar Nernst effect in NbSe2 -: art. no. 066602 [J].

Bel, R ;

Behnia, K ;

Berger, H .

PHYSICAL REVIEW LETTERS, 2003, 91 (06)

[6] SIZE DEPENDENCE OF THE TRANSPORT-PROPERTIES OF TRIGONAL BISMUTH [J].

BOXUS, J ;

UHER, C ;

HEREMANS, J ;

ISSI, JP .

PHYSICAL REVIEW B, 1981, 23 (02) :449-452

[7] Resonant nernst effect in the metallic and field-induced spin density wave states of (TMTSF)2ClO4 -: art. no. 187001 [J].

Choi, ES ;

Brooks, JS ;

Kang, H ;

Jo, YJ ;

Kang, W .

PHYSICAL REVIEW LETTERS, 2005, 95 (18)

[8] NORMAL-STATE NERNST EFFECT IN A TL2BA2CACU2O8+DELTA EPITAXIAL FILM [J].

CLAYHOLD, JA ;

LINNEN, AW ;

CHEN, F ;

CHU, CW .

PHYSICAL REVIEW B, 1994, 50 (06) :4252-4255

[9] SPECIFIC HEAT OF ANTIMONY AND BISMUTH BETWEEN 0.03 AND 0.8K [J].

COLLAN, HK ;

KRUSIUS, M ;

PICKETT, GR .

PHYSICAL REVIEW B, 1970, 1 (07) :2888-&

[10] Metal-insulator-like behavior in semimetallic bismuth and graphite [J].

Du, X ;

Tsai, SW ;

Maslov, DL ;

Hebard, AF .

PHYSICAL REVIEW LETTERS, 2005, 94 (16)

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