Structure and thermoelectric properties of SrBiTe3; 12-fold superstructure caused by distortion of the two-dimensional Te-Nets

Kyoung Shin Choi; Duck Young Chung; Joy Heising; Paul W. Brazis; Carl R. Kannewurf; Mercouri G. Kanatzidis

Structure and thermoelectric properties of SrBiTe₃; 12-fold superstructure caused by distortion of the two-dimensional Te-Nets

Kyoung Shin Choi^*, Duck Young Chung, Joy Heising, Paul W. Brazis, Carl R. Kannewurf, Mercouri G. Kanatzidis

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Conference article › peer-review

Abstract

The ternary compound, SrBiTe₃, was prepared by the molten flux method. It crystallizes in the orthorhombic space group Pmmn with a=4.665(2) angstrom, b=4.517(2) angstrom, c=16.129 angstrom, and Z=2. The compound is composed of a NaCl-type [Bi₂Te₄]^2- layer and a flat square (Te₂)^2- net with equal Te-Te distances of 3.24 angstrom. The Sr²⁺ ions are stabilized between the layers in monocapped square antiprismatic sites. X-ray and electron diffraction studies reveal a 12-fold superstructure due to subtle distortions within the Te net of the compound. The superstructure was refined in the monoclinic space group C2 with a=27.923(5) angstrom, b=32.228(6) angstrom, c=4.5069(9) angstrom, β=90.000(3)°. The compound is a semiconductor with a band gap value of 0.14 eV. It melts incongruently at 613°C.

Original language	English (US)
Pages (from-to)	117-122
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	545
State	Published - Jan 1 1999
Event	Proceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' - Boston, MA, USA Duration: Nov 30 1998 → Dec 3 1998

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

@article{9738f403ceb84cf8bd817fc288389786,

title = "Structure and thermoelectric properties of SrBiTe3; 12-fold superstructure caused by distortion of the two-dimensional Te-Nets",

abstract = "The ternary compound, SrBiTe3, was prepared by the molten flux method. It crystallizes in the orthorhombic space group Pmmn with a=4.665(2) angstrom, b=4.517(2) angstrom, c=16.129 angstrom, and Z=2. The compound is composed of a NaCl-type [Bi2Te4]2- layer and a flat square (Te2)2- net with equal Te-Te distances of 3.24 angstrom. The Sr2+ ions are stabilized between the layers in monocapped square antiprismatic sites. X-ray and electron diffraction studies reveal a 12-fold superstructure due to subtle distortions within the Te net of the compound. The superstructure was refined in the monoclinic space group C2 with a=27.923(5) angstrom, b=32.228(6) angstrom, c=4.5069(9) angstrom, β=90.000(3)°. The compound is a semiconductor with a band gap value of 0.14 eV. It melts incongruently at 613°C.",

author = "Choi, {Kyoung Shin} and Chung, {Duck Young} and Joy Heising and Brazis, {Paul W.} and Kannewurf, {Carl R.} and Kanatzidis, {Mercouri G.}",

year = "1999",

month = jan,

day = "1",

language = "English (US)",

volume = "545",

pages = "117--122",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Proceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' ; Conference date: 30-11-1998 Through 03-12-1998",

}

TY - JOUR

T1 - Structure and thermoelectric properties of SrBiTe3; 12-fold superstructure caused by distortion of the two-dimensional Te-Nets

AU - Choi, Kyoung Shin

AU - Chung, Duck Young

AU - Heising, Joy

AU - Brazis, Paul W.

AU - Kannewurf, Carl R.

AU - Kanatzidis, Mercouri G.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - The ternary compound, SrBiTe3, was prepared by the molten flux method. It crystallizes in the orthorhombic space group Pmmn with a=4.665(2) angstrom, b=4.517(2) angstrom, c=16.129 angstrom, and Z=2. The compound is composed of a NaCl-type [Bi2Te4]2- layer and a flat square (Te2)2- net with equal Te-Te distances of 3.24 angstrom. The Sr2+ ions are stabilized between the layers in monocapped square antiprismatic sites. X-ray and electron diffraction studies reveal a 12-fold superstructure due to subtle distortions within the Te net of the compound. The superstructure was refined in the monoclinic space group C2 with a=27.923(5) angstrom, b=32.228(6) angstrom, c=4.5069(9) angstrom, β=90.000(3)°. The compound is a semiconductor with a band gap value of 0.14 eV. It melts incongruently at 613°C.

AB - The ternary compound, SrBiTe3, was prepared by the molten flux method. It crystallizes in the orthorhombic space group Pmmn with a=4.665(2) angstrom, b=4.517(2) angstrom, c=16.129 angstrom, and Z=2. The compound is composed of a NaCl-type [Bi2Te4]2- layer and a flat square (Te2)2- net with equal Te-Te distances of 3.24 angstrom. The Sr2+ ions are stabilized between the layers in monocapped square antiprismatic sites. X-ray and electron diffraction studies reveal a 12-fold superstructure due to subtle distortions within the Te net of the compound. The superstructure was refined in the monoclinic space group C2 with a=27.923(5) angstrom, b=32.228(6) angstrom, c=4.5069(9) angstrom, β=90.000(3)°. The compound is a semiconductor with a band gap value of 0.14 eV. It melts incongruently at 613°C.

UR - http://www.scopus.com/inward/record.url?scp=0032591244&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032591244&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0032591244

SN - 0272-9172

VL - 545

SP - 117

EP - 122

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Proceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998'

Y2 - 30 November 1998 through 3 December 1998

ER -

Structure and thermoelectric properties of SrBiTe₃; 12-fold superstructure caused by distortion of the two-dimensional Te-Nets

Abstract

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this