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Melting of dxy Orbital Ordering Accompanied by Suppression of Giant Tetragonal Distortion and Insulator-to-Metal Transition in Cr- Substituted PbVO3

Ogata, Takahiro ; Sakai, Yuki ; Yamamoto, Hajime ; Patel, Satyanarayan ; Keil, Peter ; Koruza, Jurij ; Kawaguchi, Shogo ; Pan, Zhao ; Nishikubo, Takumi ; Rödel, Jürgen ; Azuma, Masaki (2019)
Melting of dxy Orbital Ordering Accompanied by Suppression of Giant Tetragonal Distortion and Insulator-to-Metal Transition in Cr- Substituted PbVO3.
In: Chemistry of Materials, 2019 (31)
doi: 10.1021/acs.chemmater.8b04680
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

PbVO3 features giant tetragonal distortion (c/a = 1.23) and spontaneous polarization (Ps = 101 μC/cm2) originating from the ordering of dxy orbital of V4+ with single d electrons. A dedicated study of Cr-substituted PbVO3 prepared by high-pressure synthesis afforded a well-defined variation in c/a ratio. Ensuing changes in atomic structure were correlated to ferroelastic domain switching and a temperature-induced structural transition to a cubic phase accompanied with an insulator-to-metal transition and a negative thermal expansion.

Typ des Eintrags: Artikel
Erschienen: 2019
Autor(en): Ogata, Takahiro ; Sakai, Yuki ; Yamamoto, Hajime ; Patel, Satyanarayan ; Keil, Peter ; Koruza, Jurij ; Kawaguchi, Shogo ; Pan, Zhao ; Nishikubo, Takumi ; Rödel, Jürgen ; Azuma, Masaki
Art des Eintrags: Bibliographie
Titel: Melting of dxy Orbital Ordering Accompanied by Suppression of Giant Tetragonal Distortion and Insulator-to-Metal Transition in Cr- Substituted PbVO3
Sprache: Englisch
Publikationsjahr: 4 März 2019
Verlag: American Chemical Society
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Chemistry of Materials
Jahrgang/Volume einer Zeitschrift: 2019
(Heft-)Nummer: 31
DOI: 10.1021/acs.chemmater.8b04680
Kurzbeschreibung (Abstract):

PbVO3 features giant tetragonal distortion (c/a = 1.23) and spontaneous polarization (Ps = 101 μC/cm2) originating from the ordering of dxy orbital of V4+ with single d electrons. A dedicated study of Cr-substituted PbVO3 prepared by high-pressure synthesis afforded a well-defined variation in c/a ratio. Ensuing changes in atomic structure were correlated to ferroelastic domain switching and a temperature-induced structural transition to a cubic phase accompanied with an insulator-to-metal transition and a negative thermal expansion.

Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe
Hinterlegungsdatum: 04 Mär 2019 13:08
Letzte Änderung: 04 Mär 2019 13:08
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