Abstract
Spinel vanadates possess rich physics arising from the interaction among spin, orbital and lattice degrees of freedom. We report the dielectric properties of polycrystalline Fe1.8V1.2O4. A thermally activated dielectric relaxation appeared in low temperature due to the inhomogeneous conductivity between grains and grain boundaries. We found an artificial ferroelecticity in this sample. An abnormal frequency-independent dielectric peak appeared at room temperature when the samples were measured during warming in ambient air. However, this peak disappeared in the following cooling process. By dielectric frequency spectrum and equivalent circuit analysis in detail, we found the sample had a surface layer in warming but not in cooling process. We also confirmed that this surface layer was induced by the adsorption of water, which is responsible for the dielectric peak.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Xu Z G, Cheng F X, Zhou B, et al. Combustion synthesis and magnetic investigation of nanosized CoFe2O4. Chin Sci Bull, 2001, 46: 384–387
Abe M, Kawachi M, Nomura S. Mössbauer study of the FeV2O4-Fe3O4 system. J Solid State Chem, 1974, 10: 351–356
Takei H, Suzuki T. Nonvolatile memory effect of capacitance in polycrystalline spinel vanadate. Appl Phys Lett, 2007, 91: 072506
Nishihara S, Doi W, Ishibashi H, et al. Appearance of magnetization jumps in magnetic hysteresis curves in spinel oxide FeV2O4. J Appl Phys, 2010, 107: 09A504
Rogers D B, Arnott R J, Wold A, et al. The preparation and properties of some vanadium spinels. J Phys Chem Solids, 1963, 24: 347–360
Zhang L, Chen X M. Dielectric relaxation in LuFeO3 ceramics. Solid State Commun, 2009, 149: 1317–1321
Ramirez A P, Subramanian M A, Gardel M, et al. Giant dielectric constant response in a copper-titanate. Solid State Commun, 2000, 115: 217–220
Lunkenheimer P, Krohns S, Riegg S, et al. Colossal dielectric constants in transition-metal oxides. Europ Phys J, 2009, 180: 61–89
Xu Z, Zheng S G, Yue Z X, et al. Research on effects of hydrostatic pressure on the dielectric property of Pb(Zn1/3Nb2/3)O3-BaTiO3PbTiO3 relaxor ferroelectric ceramics. Chin Sci Bull, 2002, 47: 513–518
Adams T B, Sinclair D C, West A R. Giant barrier layer capacitance effects in CaCu3Ti4O12 ceramics. Adv Mater, 2002, 14: 1321–1323
Wang C C, Cui Y M, Xie G L, et al. Phase separation in La2CuO4+y ceramics probed by dielectric measurements. Phys Rev B, 2005, 72: 064513
Schmidt R, Eerenstein W, Winiecki T, et al. Impedance spectroscopy of epitaxial multiferroic thin films. Phys Rev B, 2007, 75: 245111
Meher K R S P, Varma K B R. Colossal dielectric behavior of semiconducting Sr2TiMnO6 ceramics. J Appl Phys, 2009, 105: 034113
Liu S H, Huang J C A, Qi X D, et al. Structural transformation and charge transfer induced ferroelectricity and magnetism in annealed YMnO3. AIP Adv, 2011, 1: 032173
Wang C C, Zhang L W. Surface-layer effect in CaCuTiO. Appl Phys Lett, 2006, 88: 042906
Cao G H, Feng L X, Wang C. Grain-boundary and subgrain-boundary effects on the dielectric properties of CaCu3Ti4O12 ceramics. J Phys D: Appl Phys, 2007, 40: 2899–2905
Fan H Q, Xu Z, Zhang L Y, et al. Dielectric behavior of poled complex perovskite relaxor ferroelectrics. Chin Sci Bull, 1997, 42: 169–172
Wang J, Li M Y, Liu X L, et al. Synthesis and ferroelectric properties of Nd doped multiferroic BiFeO3 nanotubes. Chin Sci Bull, 2010, 55: 1594–1597
Dai Z H, Yao X, Xu Z, et al. Properties of PbLa(Zr,Sn,Ti)O3 ceramics near ferroelectric-antiferroelectric phase boundary. Chin Sci Bull, 2006, 51: 1000–1004
Wu N N, Song X M, Hou Y D, et al. Relaxor behavior of (1−x) Pb(Mg1/3Nb2/3)O3−x PbTiO3 ceramics. Chin Sci Bull, 2009, 54: 1267–1274
Wang C C, Dou S X. Pseudo-relaxor behaviour induced by Maxwell-Wagner relaxation. Solid State Commun, 2009, 149: 2017–2020
Wang C C, Zhang L W. Oxygen-vacancy-related dielectric anomaly in CaCu3Ti4O12: Post-sintering annealing studies. Phys Rev B, 2006, 74: 024106
Ke S M, Huang H T, Fan H Q. Relaxor behavior in CaCu3Ti4O12 ceramics. Appl Phys Lett, 2006, 89: 182904
Onodera A. Novel ferroelectricity in II-VI semiconductor ZnO. Ferroelectrics, 2002, 267: 131–137
Onodera A, Tamaki N, Kawamura Y, et al. Dielectric activity and ferroelectricity in piezoelectric semiconductor Li-doped ZnO. Jpn J Appl Phys, 1996, 35: 5160–5162
Soukiassian A, Tagantsev A, Setter N. Anomalous dielectric peak in Mg and Li doped ZnO ceramics and thin films. Appl Phys Lett, 2010, 97: 192903
Author information
Authors and Affiliations
Corresponding author
Additional information
This article is published with open access at Springerlink.com
Rights and permissions
This article is published under an open access license. Please check the 'Copyright Information' section either on this page or in the PDF for details of this license and what re-use is permitted. If your intended use exceeds what is permitted by the license or if you are unable to locate the licence and re-use information, please contact the Rights and Permissions team.
About this article
Cite this article
Liu, N., Wang, Y. & Zhang, L. Dielectric properties of spinel ceramic Fe1.8V1.2O4 . Chin. Sci. Bull. 57, 4707–4711 (2012). https://doi.org/10.1007/s11434-012-5570-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11434-012-5570-8