Anomalous Coexistence of Ferroelectric Phases (P [par]a and P [par]c) in Orthorhombic Eu sub( 1-y)Y sub( y)MnO sub( 3) (y > 0.5) Crystals
We have investigated the magnetic and dielectric properties of orthorhombic Eu ... Y ... MnO ... (0 less than or equal to y less than or equal to 0.6) single crystals without the presence of the 4 f magnetic moments of the rare-earth ions. In y greater than or equal to 0.2, the magnetic-structure dr...
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| Veröffentlicht in: | Journal of the Physical Society of Japan 2011-09, Vol.80 (9), p.1-1 |
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| creator | Akaki, Mitsuru Hitomi, Masaaki Ehara, Mizuaki Akahoshi, Daisuke Kuwahara, Hideki |
| description | We have investigated the magnetic and dielectric properties of orthorhombic Eu ... Y ... MnO ... (0 less than or equal to y less than or equal to 0.6) single crystals without the presence of the 4 f magnetic moments of the rare-earth ions. In y greater than or equal to 0.2, the magnetic-structure driven ferroelectricity is observed. The ferroelectric transition temperature is steeply reducing with increasing y . In y greater than or equal to 0.52, two ferroelectric phases ( P ... a and P ... c ) are coexistent at low temperatures. In these phases, ferroelectricity has different origin, which is evidenced by the distinctive poling-electric-field dependence of electric polarization. Namely, the electric polarization along the c -axis ( P ... ) is easily saturated by a poling electric field, therefore P ... is caused by the b c -spiral antiferromagnetic order. On the other hand, the electric polarization along the a -axis ( P ... ) is probably attributed to the collinear E -type antiferromagnetic order, because P ... is unsaturated even in a poling field of 10 ... V/m. (ProQuest: ... denotes formulae/symbols omitted.) |
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Y ... MnO ... (0 less than or equal to y less than or equal to 0.6) single crystals without the presence of the 4 f magnetic moments of the rare-earth ions. In y greater than or equal to 0.2, the magnetic-structure driven ferroelectricity is observed. The ferroelectric transition temperature is steeply reducing with increasing y . In y greater than or equal to 0.52, two ferroelectric phases ( P ... a and P ... c ) are coexistent at low temperatures. In these phases, ferroelectricity has different origin, which is evidenced by the distinctive poling-electric-field dependence of electric polarization. Namely, the electric polarization along the c -axis ( P ... ) is easily saturated by a poling electric field, therefore P ... is caused by the b c -spiral antiferromagnetic order. On the other hand, the electric polarization along the a -axis ( P ... ) is probably attributed to the collinear E -type antiferromagnetic order, because P ... is unsaturated even in a poling field of 10 ... V/m. (ProQuest: ... denotes formulae/symbols omitted.)</description><identifier>ISSN: 0031-9015</identifier><identifier>EISSN: 1347-4073</identifier><language>eng</language><subject>Antiferromagnetism ; Deoxidizing ; Electric polarization ; Ferroelectric materials ; Ferroelectricity ; Phases ; Rare earth metals ; Transition temperature</subject><ispartof>Journal of the Physical Society of Japan, 2011-09, Vol.80 (9), p.1-1</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780</link.rule.ids></links><search><creatorcontrib>Akaki, Mitsuru</creatorcontrib><creatorcontrib>Hitomi, Masaaki</creatorcontrib><creatorcontrib>Ehara, Mizuaki</creatorcontrib><creatorcontrib>Akahoshi, Daisuke</creatorcontrib><creatorcontrib>Kuwahara, Hideki</creatorcontrib><title>Anomalous Coexistence of Ferroelectric Phases (P [par]a and P [par]c) in Orthorhombic Eu sub( 1-y)Y sub( y)MnO sub( 3) (y > 0.5) Crystals</title><title>Journal of the Physical Society of Japan</title><description>We have investigated the magnetic and dielectric properties of orthorhombic Eu ... Y ... MnO ... (0 less than or equal to y less than or equal to 0.6) single crystals without the presence of the 4 f magnetic moments of the rare-earth ions. In y greater than or equal to 0.2, the magnetic-structure driven ferroelectricity is observed. The ferroelectric transition temperature is steeply reducing with increasing y . In y greater than or equal to 0.52, two ferroelectric phases ( P ... a and P ... c ) are coexistent at low temperatures. In these phases, ferroelectricity has different origin, which is evidenced by the distinctive poling-electric-field dependence of electric polarization. Namely, the electric polarization along the c -axis ( P ... ) is easily saturated by a poling electric field, therefore P ... is caused by the b c -spiral antiferromagnetic order. On the other hand, the electric polarization along the a -axis ( P ... ) is probably attributed to the collinear E -type antiferromagnetic order, because P ... is unsaturated even in a poling field of 10 ... V/m. 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Y ... MnO ... (0 less than or equal to y less than or equal to 0.6) single crystals without the presence of the 4 f magnetic moments of the rare-earth ions. In y greater than or equal to 0.2, the magnetic-structure driven ferroelectricity is observed. The ferroelectric transition temperature is steeply reducing with increasing y . In y greater than or equal to 0.52, two ferroelectric phases ( P ... a and P ... c ) are coexistent at low temperatures. In these phases, ferroelectricity has different origin, which is evidenced by the distinctive poling-electric-field dependence of electric polarization. Namely, the electric polarization along the c -axis ( P ... ) is easily saturated by a poling electric field, therefore P ... is caused by the b c -spiral antiferromagnetic order. On the other hand, the electric polarization along the a -axis ( P ... ) is probably attributed to the collinear E -type antiferromagnetic order, because P ... is unsaturated even in a poling field of 10 ... V/m. (ProQuest: ... denotes formulae/symbols omitted.)</abstract></addata></record> |
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| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | Antiferromagnetism Deoxidizing Electric polarization Ferroelectric materials Ferroelectricity Phases Rare earth metals Transition temperature |
| title | Anomalous Coexistence of Ferroelectric Phases (P [par]a and P [par]c) in Orthorhombic Eu sub( 1-y)Y sub( y)MnO sub( 3) (y > 0.5) Crystals |
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