Magnetic Field Induced Transition in Vanadium Spinels
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ISSN: 0031-9007
E-ISSN: 1079-7114
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Abstract
We study vanadium spinels AV2O4 (A=Cd,Mg)
in pulsed magnetic fields up to 65 T. A jump in magnetization at μ0H≈40 T is observed in the single-crystal MgV2O4, indicating a field induced quantum phase transition between two distinct magnetic orders. In the multiferroic CdV2O4, the field induced transition is accompanied by a suppression of the electric polarization. By modeling the magnetic properties in the presence of strong spin-orbit coupling characteristic of vanadium spinels, we show that both features of the field induced transition can be successfully explained by including the effects of the local trigonal crystal field
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Mun, E., Chern, G., Pardo, V., Rivadulla, F., Sinclair, R., & Zhou, H. et al. (2014). Magnetic Field Induced Transition in Vanadium Spinels. Physical Review Letters, 112(1). doi: 10.1103/physrevlett.112.017207
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https://doi.org/10.1103/PhysRevLett.112.017207Sponsors
Work at the LANL was performed under the auspices of the U.S. DOE Grant No. DE-AC52-06NA25396 through the LDRD program. The NHMFL facility is funded by the NSF through cooperative Grant No. DMR-1157490, by the DOE, and by the State of Florida. This material is based upon work supported in part by the NSF under Grant No. PHY-1066293 and the hospitality of the ACP. V. P. acknowledges financial support from the Ramon y Cajal Program. F. R. acknowledges support from Xunta de Galicia 2012-CP071
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© 2014 American Physical Society