Antiferroelectric lattice distortion induced by ferroquadrupolar order inDyVO4

Autor:	Hidehito Nakamura, Yusuke Wakabayashi, K. Kishimoto, Taishi Ishikura, Takashi Kimura
Rok vydání:	2010
Předmět:	Physics Condensed matter physics Domain (ring theory) Tetrahedron Order (ring theory) Magnetocapacitance Antiferroelectricity Dielectric Condensed Matter Physics Electronic Optical and Magnetic Materials Magnetic field Ion
Zdroj:	Physical Review B. 82
ISSN:	1550-235X 1098-0121
DOI:	10.1103/physrevb.82.012103
Popis:	The effects of quadrupolar order on structural, magnetic, and dielectric properties have been investigated for ${\text{DyVO}}_{4}$. Our detailed structure analysis demonstrated that the cooperative Jahn-Teller effect associated with $4f$ ferroquadrupolar order causes the displacement of oxygen ions surrounding a Dy ion, which makes the relative position of a V ion off-center in a ${\text{VO}}_{4}$ tetrahedron. The lattice distortion well explains antiferroelectriclike anomalies at around the quadrupolar ordering temperature. We also report the Jahn-Teller domain control giving rise to a remarkable magnetocapacitance effect by applying a small magnetic field $(\ensuremath{\sim}0.1\text{ }\text{T})$.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8035839ed584eb670e17a66c13fb1766 https://doi.org/10.1103/physrevb.82.012103 Zobrazit plný text záznamu