Hopping conduction and piezoelectricity in Fe-doped GaN studied by non-contacting resonant ultrasound spectroscopy

Ogi, H.; Tsutsui, Y.; Nakamura, N.; Nagakubo, A.; Hirao, M.; Imade, M.; Yoshimura, M.; Mori, Y.

doi:https://doi.org/10.1063/1.4913973

Hopping conduction and piezoelectricity in Fe-doped GaN studied by non-contacting resonant ultrasound spectroscopy

Ogi, H.; Tsutsui, Y.; Nakamura, N. et al.

Applied Physics Letters, 2015, 106(9), 091901-1-091901-4

Number of Access:1,003（2025-11-07 04:22 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/83927

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Title	Hopping conduction and piezoelectricity in Fe-doped GaN studied by non-contacting resonant ultrasound spectroscopy
Creator	NRID 1000090252626 1000090252626 researchmap permalink read0042771 read0042771 Scopus Author ID 35563683500 35563683500 ORCID 0000-0002-9602-5194 0000-0002-9602-5194 CreatorName Ogi, H.
	CreatorName Tsutsui, Y.
	NRID 1000050452404 1000050452404 researchmap permalink nnakamura nnakamura Scopus Author ID 7403356186 7403356186 ORCID 0000-0002-5338-842X 0000-0002-5338-842X CreatorName Nakamura, N.
	NRID 1000070751113 1000070751113 ORCID 0000-0001-7494-5099 0000-0001-7494-5099 researchmap permalink nagakubo nagakubo Scopus Author ID 55329400300 55329400300 CreatorName Nagakubo, A.
	NRID 1000080112027 1000080112027 CreatorName Hirao, M.
	NRID 1000040457007 1000040457007 CreatorName Imade, M.
	NRID 1000060314382 1000060314382 researchmap permalink read0191199 read0191199 Scopus Author ID 7403136552 7403136552 ORCID 0000-0002-0770-1251 0000-0002-0770-1251 CreatorName Yoshimura, M.
	NRID 1000090252618 1000090252618 ORCID 0000-0003-2952-7458 0000-0003-2952-7458 researchmap permalink mori_yusuke mori_yusuke Scopus Author ID 7404197134 7404197134 CreatorName Mori, Y.
Description	Ogi H., Tsutsui Y., Nakamura N., et al. Hopping conduction and piezoelectricity in Fe-doped GaN studied by non-contacting resonant ultrasound spectroscopy. Applied Physics Letters, 106(9), 091901 (2015) https://doi.org/10.1063/1.4913973.
Abstract	Using the antenna-transmission acoustic-resonance technique, we measured temperature dependencies of mechanical resonance frequencies and attenuation of an Fe-doped GaN. A strong internal-friction peak appears during temperature change, at which reduction in frequency occurs. The peak temperature rises as frequency increases, indicating the phonon-assisted hopping conduction of carriers between Fe centers. The Arrhenius plot yields the activation energy of the hopping conduction to be 0.23±0.05eV. The frequency reduction of a quasi-plane-shear resonance mode yields the piezoelectric coefficient e15=0.332 ± 0.03C/m2.
Publisher	American Institute of Physics
Source Title	Applied Physics Letters
Volume (Issue)	106(9)
Page	091901-1-091901-4
Date of Issued	2015-03-02
Language	English
Handle URL	https://hdl.handle.net/11094/83927
PISSN	00036951
eISSN	10773118
NCID	AA11868096
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1063/1.4913973
Access Rights	open access
CopyRight	Copyright 2015 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Applied Physics Letters, 106(9), 091901, 2015 and may be found at https://doi.org/10.1063/1.4913973.
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Applied Physics Letters. 2015, 106(9), p. 091901-1-091901-4
DC.title	Hopping conduction and piezoelectricity in Fe-doped GaN studied by non-contacting resonant ultrasound spectroscopy
DC.creator	Ogi, H.
	Tsutsui, Y.
	Nakamura, N.
	Nagakubo, A.
	Hirao, M.
	Imade, M.
	Yoshimura, M.
	Mori, Y.
DC.publisher	American Institute of Physics
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2015-03-02
DC.identifier	https://doi.org/10.1063/1.4913973
DC.description	Ogi H., Tsutsui Y., Nakamura N., et al. Hopping conduction and piezoelectricity in Fe-doped GaN studied by non-contacting resonant ultrasound spectroscopy. Applied Physics Letters, 106(9), 091901 (2015) https://doi.org/10.1063/1.4913973.
DCTERMS.abstract	Using the antenna-transmission acoustic-resonance technique, we measured temperature dependencies of mechanical resonance frequencies and attenuation of an Fe-doped GaN. A strong internal-friction peak appears during temperature change, at which reduction in frequency occurs. The peak temperature rises as frequency increases, indicating the phonon-assisted hopping conduction of carriers between Fe centers. The Arrhenius plot yields the activation energy of the hopping conduction to be 0.23±0.05eV. The frequency reduction of a quasi-plane-shear resonance mode yields the piezoelectric coefficient e15=0.332 ± 0.03C/m2.
DC.rights	Copyright 2015 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Applied Physics Letters, 106(9), 091901, 2015 and may be found at https://doi.org/10.1063/1.4913973.
DC.format	83927
citation_title	Hopping conduction and piezoelectricity in Fe-doped GaN studied by non-contacting resonant ultrasound spectroscopy
citation_author	Ogi, H.
	Tsutsui, Y.
	Nakamura, N.
	Nagakubo, A.
	Hirao, M.
	Imade, M.
	Yoshimura, M.
	Mori, Y.
citation_publisher	American Institute of Physics
citation_language	English
citation_date	2015-03-02
citation_journal_title	Applied Physics Letters
citation_volume	106
citation_issue	9
citation_firstpage	091901-1
citation_lastpage	091901-4
citation_doi	https://doi.org/10.1063/1.4913973
citation_public_url	https://hdl.handle.net/11094/83927

Hopping conduction and piezoelectricity in Fe-doped GaN studied by non-contacting resonant ultrasound spectroscopy

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