Colossal electroresistance and colossal magne...

Appl. Phys. Lett. 96, 122109 (2010); doi:10.1063/1.3368123 (3 pages)
Colossal electroresistance and colossal magnetoresistance in spinel multiferroic CdCr2S4
C. P. Sun1, C. L. Huang1, C. C. Lin1, J. L. Her1, C. J. Ho1, J.-Y. Lin2, H. Berger3, and H. D. Yang1
1Department of Physics, Center for Nano Science and Nano Technology, National Sun Yat-Sen University, Kaohsiung 804, Taiwanmap
2Institute of Physics, National Chiao-Tung University, Hsinchu 300, Taiwanmap
3Institutes of Physics of Condensed Material, EPFL, Lausanne 1015, Switzerlandmap
(Received 29 December 2009; accepted 1 March 2010; published online 25 March 2010)

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Colossal magnetoresistance (CMR) and colossal electroresistance (CER) induced by the electric field in spinel multiferroic CdCr2S4 are reported. It is found that a metal-insulator transition in CdCr2S4 is triggered by the electrical field. In magnetic fields, the resistivity ρ of CdCr2S4 responds similarly to that of CMR manganites. Combing previous reports, these findings make CdCr2S4 the unique compound to possess all four properties of the colossal magnetocapacitive, colossal electrocapacitive, CER, and CMR. The present results open a new venue for searching new materials to show CMR by tuning electric and magnetic fields.
© 2010 American Institute of Physics
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KEYWORDS and PACS
Keywords
cadmium compounds,chromium compounds,colossal magnetoresistance,metal-insulator transition,multiferroics
PACS
75.47.Gk
Colossal magnetoresistance
71.30.+h
Metal-insulator transitions and other electronic transitions
75.85.+t
Magnetoelectric effects, multiferroics
77.80.-e
Ferroelectricity and antiferroelectricity
ARTICLE DATA
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http://link.aip.org/link/APPLAB/v96/i12/p122109/s1
PUBLICATION DATA
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0003-6951 (print)
1077-3118 (online)
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American Institute of Physics
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