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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U2 - 10.1117/12.557863
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 -