Angular-dependent magnetoresistance measurements on single crystals of URu<sub>2-x</sub>Fe<sub>x</sub>Si<sub>2</sub> in high magnetic fields
ORAL
Abstract
Magnetoresistance measurements with the current in the basal plane were performed on single crystals of URu2-xFexSi2 as a function of magnetic field H, angle θ of H with respect to the c-axis, and temperature T for several Fe concentrations x in the “hidden order” (HO) and large moment antiferromagnetic (LMAFM) regions of the T vs. x phase diagram. Measurements were made in DC fields of up to 33 T and pulsed fields of up to 65 T at the National High Magnetic Field Laboratories at Tallahassee and at Los Alamos, respectively. The Fourier components of the angular-dependence of the magnetoresistance for rotation about an axis through the basal plane were mapped out as a function of H, θ, T, and x through the HO and LMAFM phase transitions and the dependences of the HO and LMAFM transition temperatures on θ, H, and x were determined.
*Research at UCSD was supported by the NNSA through the U.S. DoE under Grant No. DE-NA0002909, by the DoE under Grant No. DEFG02-04-ER46105, and by the NSF under Grant No. DMR 1206553.
Work performed at the National High Magnetic Field Laboratory, USA, was supported by NSF Cooperative Agreement DMR-11
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Presenters
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Naveen Pouse
- Department of Physics, University of California, San Diego
- Department of Physics and Center for Advanced Nanoscience, University of California, San Diego
- Department of Physics and Center for Advanced Nanoscience, Univ of California - San Diego