Observations of acoustic de Haas-van Alphen effect in α-(ET)2NH4Hg(SCN)4

H. Matsui; M. Yamaguchi; S. Endo; H. Uozaki; N. Toyota

doi:10.1016/S0379-6779(98)00503-7

Observations of acoustic de Haas-van Alphen effect in α-(ET)₂NH₄Hg(SCN)₄

H. Matsui, M. Yamaguchi, S. Endo, H. Uozaki, N. Toyota

SCI - Physics

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

Abstract

The acoustic de Haas-van Alphen (dHvA) effect is observed as a function of magnetic field for the longitudinal ultrasound frequency 53.4 MHz traveling along the b^* direction in the quasi-two-dimensional superconductor α-(ET)₂NH₄Hg(SCN)₄ with T_c approx. 1 K. From calculating the oscillatory amplitude with the use of the Kataoka and Goto formulations, the area coefficient relating to the electron-lattice coupling is estimated to be about 3.5. The dominant contribution comes from the multiband term corresponding to the inter-band charge transfer. The anomaly in the longitudinal velocity around 20 and 60 K is also described.

Original language	English
Pages (from-to)	1840-1841
Number of pages	2
Journal	Synthetic Metals
Volume	103
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(98)00503-7
Publication status	Published - 1999 Jun 24
Event	Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier Duration: 1998 Jul 12 → 1998 Jul 18

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title = "Observations of acoustic de Haas-van Alphen effect in α-(ET)2NH4Hg(SCN)4",

abstract = "The acoustic de Haas-van Alphen (dHvA) effect is observed as a function of magnetic field for the longitudinal ultrasound frequency 53.4 MHz traveling along the b* direction in the quasi-two-dimensional superconductor α-(ET)2NH4Hg(SCN)4 with Tc approx. 1 K. From calculating the oscillatory amplitude with the use of the Kataoka and Goto formulations, the area coefficient relating to the electron-lattice coupling is estimated to be about 3.5. The dominant contribution comes from the multiband term corresponding to the inter-band charge transfer. The anomaly in the longitudinal velocity around 20 and 60 K is also described.",

author = "H. Matsui and M. Yamaguchi and S. Endo and H. Uozaki and N. Toyota",

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TY - JOUR

T1 - Observations of acoustic de Haas-van Alphen effect in α-(ET)2NH4Hg(SCN)4

AU - Matsui, H.

AU - Yamaguchi, M.

AU - Endo, S.

AU - Uozaki, H.

AU - Toyota, N.

PY - 1999/6/24

Y1 - 1999/6/24

N2 - The acoustic de Haas-van Alphen (dHvA) effect is observed as a function of magnetic field for the longitudinal ultrasound frequency 53.4 MHz traveling along the b* direction in the quasi-two-dimensional superconductor α-(ET)2NH4Hg(SCN)4 with Tc approx. 1 K. From calculating the oscillatory amplitude with the use of the Kataoka and Goto formulations, the area coefficient relating to the electron-lattice coupling is estimated to be about 3.5. The dominant contribution comes from the multiband term corresponding to the inter-band charge transfer. The anomaly in the longitudinal velocity around 20 and 60 K is also described.

AB - The acoustic de Haas-van Alphen (dHvA) effect is observed as a function of magnetic field for the longitudinal ultrasound frequency 53.4 MHz traveling along the b* direction in the quasi-two-dimensional superconductor α-(ET)2NH4Hg(SCN)4 with Tc approx. 1 K. From calculating the oscillatory amplitude with the use of the Kataoka and Goto formulations, the area coefficient relating to the electron-lattice coupling is estimated to be about 3.5. The dominant contribution comes from the multiband term corresponding to the inter-band charge transfer. The anomaly in the longitudinal velocity around 20 and 60 K is also described.

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DO - 10.1016/S0379-6779(98)00503-7

M3 - Conference article

AN - SCOPUS:0033138280

SN - 0379-6779

VL - 103

SP - 1840

EP - 1841

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

T2 - Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98)

Y2 - 12 July 1998 through 18 July 1998

ER -

Observations of acoustic de Haas-van Alphen effect in α-(ET)₂NH₄Hg(SCN)₄

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