Characterization of terahertz absorption in clathrate compound by compact spectroscopic chip

Jiro Kitagawa; Yutaka Kadoya; Koichiro Suekuni; Marcos A. Avila; Toshiro Takabatake

doi:10.7567/JJAP.52.028003

Characterization of terahertz absorption in clathrate compound by compact spectroscopic chip

Jiro Kitagawa, Yutaka Kadoya, Koichiro Suekuni, Marcos A. Avila, Toshiro Takabatake

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Many thermoelectric compounds possess terahertz (THz) phonon modes, which play a key role in improving the thermoelectric performance. To assess the THz phonon modes of thermoelectric materials, the present THz spectroscopy system requires a thin sample with a large area. We found that a compact THz spectroscopic chip can detect phonon absorption even for a small amount of a conductive sample. The chip would complement the conventional THz spectroscopy system, especially when a large crystal cannot be grown.

Original language	English
Article number	028003
Journal	Japanese journal of applied physics
Volume	52
Issue number	2
DOIs	https://doi.org/10.7567/JJAP.52.028003
Publication status	Published - Feb 1 2013
Externally published	Yes

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.7567/JJAP.52.028003

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AU - Takabatake, Toshiro

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AB - Many thermoelectric compounds possess terahertz (THz) phonon modes, which play a key role in improving the thermoelectric performance. To assess the THz phonon modes of thermoelectric materials, the present THz spectroscopy system requires a thin sample with a large area. We found that a compact THz spectroscopic chip can detect phonon absorption even for a small amount of a conductive sample. The chip would complement the conventional THz spectroscopy system, especially when a large crystal cannot be grown.

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