Investigation on the pyroelectric property of polycrystalline GdMnO{sub 3}

Journal Article · Mon Feb 10 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4865376· OSTI ID:22283176

Zhang, X. ^[1]; Cui, Y. F.; Ye, L. D.; Zhao, D. Y.; Li, P. S.; Wang, J. W.; Zhu, M. H.; Zhang, H. Y. ^[1]

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1. Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing 100084 (China)

Pyroelectric property of orthorhomic GdMnO{sub 3} polycrystalline samples was investigated. Two pyrocurrent peaks were observed with the sharp one near 20 K and the broad one at around 120 K. The dependences of these two peaks on magnetic field, heating rate, and poling voltage were explored systematically. The sharp peak is related to the ferroelectric transition, while the behavior of the broad one corresponds to dipole reorientation. Some key pyroelectric features are proposed to separate the spin-induced ferroelectricity from other effects. This work is helpful for understanding the pyroelectric property of multiferroic materials.

• OSTI ID: 22283176
• Journal Information: Applied Physics Letters, Vol. 104, Issue 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIPOLES
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
FERROELECTRIC MATERIALS
GADOLINIUM COMPOUNDS
HEATING RATE
MAGNETIC FIELDS
MANGANATES
ORTHORHOMBIC LATTICES
POLYCRYSTALS
PYROELECTRIC EFFECT
SPIN
TEMPERATURE DEPENDENCE