Study on Raman spectra of CoSb3-based skutterudite compounds

被引：0

作者：

Peng Jiangying ^{[1
]}

Yang Junyou

Bao Siqian

Chen Yuehua

Zhang Tongjun

机构：

[1] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, State Key Lab Plast Forming Simulat & Dies Tech, Wuhan 430074, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2006年 / 35卷

关键词：

thermoelectric materials; skutterudite; raman scattering spectrum;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Skutterudite family has become one of the most promising thermoelectric materials because of its interesting crystal structure. Raman scattering spectra of the CoSb3-based Skutterudites were investigated to clarify thermal transport mechanism. An A, mode was identified through polarization measurements and agreed well with theoretically calculated value. Furthermore, the investigation revealed that only Fe substitution had little effect on the Raman spectra, while La partial filling produced large broadening of the vibrational modes. It is analyzed that this phenomena is mainly due to the "rattling" motion of the filling atom in crystal voids.

引用

页码：272 / 275

页数：4

共 15 条

[1] PREPARATION AND STRUCTURAL INVESTIGATIONS OF ANTI-MONIDES WITH THE LAFE4P12 STRUCTURE [J].

BRAUN, DJ ;

JEITSCHKO, W .

JOURNAL OF THE LESS-COMMON METALS, 1980, 72 (01) :147-156

[2] Evidence for rattling behavior of the filler atom (L) in the filled skutterudites LT4X12 (L = Ce, Eu, Yb; T = Fe, Ru; X = P, Sb) from EXAFS studies -: art. no. 094109 [J].

Cao, D ;

Bridges, F ;

Chesler, P ;

Bushart, S ;

Bauer, ED ;

Maple, MB .

PHYSICAL REVIEW B, 2004, 70 (09) :094109-1

[3] Thermoelectric cooling and power generation [J].

DiSalvo, FJ .

SCIENCE, 1999, 285 (5428) :703-706

[4] ALKALINE-EARTH TRANSITION-METAL ANTIMONIDES AT4SB12 (A=CA, SR, BA - T=FE, RU, OS) WITH LAFE4P12-STRUCTURE [J].

EVERS, CBH ;

BOONK, L ;

JEITSCHKO, W .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1994, 620 (06) :1028-1032

[5] Lattice dynamics of skutterudites: First-principles and model calculations for CoSb3 [J].

Feldman, JL ;

Singh, DJ .

PHYSICAL REVIEW B, 1996, 53 (10) :6273-6282

[6] Effect of partial La filling on high-temperature thermoelectric properties of IrSb3-based skutterudite compounds [J].

Kim, SW ;

Kimura, Y ;

Mishima, Y .

JOURNAL OF ELECTRONIC MATERIALS, 2004, 33 (10) :1156-1160

[7] COMPOUNDS WITH SKUTTERUDITE TYPE CRYSTAL-STRUCTURE .3. STRUCTURAL DATA FOR ARSENIDES AND ANTIMONIDES [J].

KJEKSHUS, A ;

RAKKE, T .

ACTA CHEMICA SCANDINAVICA SERIES A-PHYSICAL AND INORGANIC CHEMISTRY, 1974, A 28 (01) :99-103

[8] LATTICE VIBRATION-SPECTRA .23. INFRARED SPECTROSCOPIC STUDIES ON THE SKUTTERUDITE TYPE COMPOUNDS COP3, COAS3, COSB3, RHP3, RHAS3, RHSB3, IRP3, IRAS3, IRSB3 [J].

LUTZ, HD ;

KLICHE, G .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1981, 480 (09) :105-116

[9] LOW-TEMPERATURE PROPERTIES OF THE FILLED SKUTTERUDITE CEFE4SB12 [J].

MORELLI, DT ;

MEISNER, GP .

JOURNAL OF APPLIED PHYSICS, 1995, 77 (08) :3777-3781

[10] The effect of rare-earth filling on the lattice thermal conductivity of skutterudites [J].

Nolas, GS ;

Slack, GA ;

Morelli, DT ;

Tritt, TM ;

Ehrlich, AC .

JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) :4002-4008

← 1 2 →