Vibrational Properties and Phase Transitions of Silicon Clathrates Studied by High-Pressure Raman Scattering

Shimizu Hiroyasu, Kume Tetsuji

doi:10.11316/butsuri1946.60.543

Bibliographic Information

Other Title

ラマン分光によるシリコンクラスレートのゲストおよびホストの振動と高圧相転移の研究

Abstract

Silicon clathrates are covalent bonded cage-like crystals composed of face-sharing Si₂₀, Si₂₄, and Si₂₈ polyhedra in which guest atoms are occupied. These compounds continue to attract much attention as new superconductors, unusual wide-bandgap semiconductor, and a new class of thermo-electric materials. Vibrational properties of guests and host lattice, and the guest-host interactions are studied by high-pressure Raman spectroscopy. By considering these results and high-pressure phase transitions of Si clathrates, we investigate their characteristics depending on guests and cage-structures.

Journal

Butsuri

Butsuri 60 (7), 543-546, 2005

The Physical Society of Japan

Details 詳細情報について

CRID: 1390282680381969792

NII Article ID: 130004181334

DOI: 10.11316/butsuri1946.60.543

ISSN: 24238872; 00290181

Text Lang: ja

Data Source

JaLC
CiNii Articles
KAKEN

Abstract License Flag: Disallowed

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