Peak of a gyration tensor component of boracite crystals

T. Asahi; T. Osaka; N. Takahashi; K. Saito; J. Kobayashi

doi:10.1117/12.557863

Peak of a gyration tensor component of boracite crystals

T. Asahi^*, T. Osaka, N. Takahashi, K. Saito, J. Kobayashi

^*Corresponding author for this work

School of Advanced Science and Engineering

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

1 Citation (Scopus)

Abstract

According to HAUP measurements, two ferroelectric boracites, Fe ₃B₇O₁₃I and Cu₃B₇O ₁₃Cl, manifest peaks of a gyration component g₁₁ at each Curie point. These phenomena are entirely unintelligible from the usual concepts of the origin of ferroelectricity. Besides, the electrogyration effects of both crystals are also quite different. As has already been determined boracite crystals exhibit characteristic features of being improper ferroelectric. A phenomenological theory of improper ferroelectricity developed by Kobayashi is applied to these anomalous phenomena, and qualitative interpretations are successfully obtained.

Original language	English
Article number	39
Pages (from-to)	277-284
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5508
DOIs	https://doi.org/10.1117/12.557863
Publication status	Published - 2004
Event	Complex Mediums V: Light and Complexity - Denver, CO, United States Duration: 2004 Aug 4 → 2004 Aug 5

Keywords

Electrogyration
HAUP
Improper ferroelectrics
Optical activity

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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title = "Peak of a gyration tensor component of boracite crystals",

abstract = "According to HAUP measurements, two ferroelectric boracites, Fe 3B7O13I and Cu3B7O 13Cl, manifest peaks of a gyration component g11 at each Curie point. These phenomena are entirely unintelligible from the usual concepts of the origin of ferroelectricity. Besides, the electrogyration effects of both crystals are also quite different. As has already been determined boracite crystals exhibit characteristic features of being improper ferroelectric. A phenomenological theory of improper ferroelectricity developed by Kobayashi is applied to these anomalous phenomena, and qualitative interpretations are successfully obtained.",

keywords = "Electrogyration, HAUP, Improper ferroelectrics, Optical activity",

author = "T. Asahi and T. Osaka and N. Takahashi and K. Saito and J. Kobayashi",

year = "2004",

doi = "10.1117/12.557863",

language = "English",

volume = "5508",

pages = "277--284",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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publisher = "SPIE",

note = "Complex Mediums V: Light and Complexity ; Conference date: 04-08-2004 Through 05-08-2004",

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TY - JOUR

T1 - Peak of a gyration tensor component of boracite crystals

AU - Asahi, T.

AU - Osaka, T.

AU - Takahashi, N.

AU - Saito, K.

AU - Kobayashi, J.

PY - 2004

Y1 - 2004

N2 - According to HAUP measurements, two ferroelectric boracites, Fe 3B7O13I and Cu3B7O 13Cl, manifest peaks of a gyration component g11 at each Curie point. These phenomena are entirely unintelligible from the usual concepts of the origin of ferroelectricity. Besides, the electrogyration effects of both crystals are also quite different. As has already been determined boracite crystals exhibit characteristic features of being improper ferroelectric. A phenomenological theory of improper ferroelectricity developed by Kobayashi is applied to these anomalous phenomena, and qualitative interpretations are successfully obtained.

AB - According to HAUP measurements, two ferroelectric boracites, Fe 3B7O13I and Cu3B7O 13Cl, manifest peaks of a gyration component g11 at each Curie point. These phenomena are entirely unintelligible from the usual concepts of the origin of ferroelectricity. Besides, the electrogyration effects of both crystals are also quite different. As has already been determined boracite crystals exhibit characteristic features of being improper ferroelectric. A phenomenological theory of improper ferroelectricity developed by Kobayashi is applied to these anomalous phenomena, and qualitative interpretations are successfully obtained.

KW - Electrogyration

KW - HAUP

KW - Improper ferroelectrics

KW - Optical activity

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DO - 10.1117/12.557863

M3 - Conference article

AN - SCOPUS:10844225303

SN - 0277-786X

VL - 5508

SP - 277

EP - 284

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 39

T2 - Complex Mediums V: Light and Complexity

Y2 - 4 August 2004 through 5 August 2004

ER -

Peak of a gyration tensor component of boracite crystals

Abstract

Keywords

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