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Title: Anisotropy of the upper critical field in the magnetic heavy-fermion superconductor URu/sub 2/Si/sub 2/

Abstract

Measurements have been performed of the upper critical field H/sub c//sub 2/ anisotropy in the magnetic heavy-fermion superconductor URu/sub 2/Si/sub 2/. The dH/sub c//sub 2//dT value is constant within 5% when H is rotated in the basal plane, whereas chemically bonddH/sub c//sub 2//dTchemically bond decreases by about 35% for H rotated by 20/sup 0/--30/sup 0/ out of the basal plane. Contrary to CeCu/sub 2/Si/sub 2/ the H/sub c//sub 2/ anisotropy in URu/sub 2/Si/sub 2/ is enhanced as temperature decreases below T/sub c/. This disparity can be attributed to the different strengths of paramagnetic and spin-orbit effects responsible for the suppression of superconductivity by a magnetic field in CeCu/sub 2/Si/sub 2/ and URu/sub 2/Si/sub 2/.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Low Temperature Physics Laboratory, Department of Physics, Moscow State University, Moscow 117234, USSR
OSTI Identifier:
5326508
Resource Type:
Journal Article
Journal Name:
J. Appl. Phys.; (United States)
Additional Journal Information:
Journal Volume: 63:8
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; RUTHENIUM SILICIDES; CRITICAL FIELD; URANIUM SILICIDES; ANISOTROPY; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; ACTINIDE COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; MAGNETIC FIELDS; PHYSICAL PROPERTIES; REFRACTORY METAL COMPOUNDS; RUTHENIUM COMPOUNDS; SILICIDES; SILICON COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; URANIUM COMPOUNDS; 360603* - Materials- Properties; 656100 - Condensed Matter Physics- Superconductivity

Citation Formats

Moshchalkov, V V, Aliev, F, Kovachik, V, Zalyaljutdinov, M, Palstra, T T.M., Menovsky, A A, and Mydosh, J A. Anisotropy of the upper critical field in the magnetic heavy-fermion superconductor URu/sub 2/Si/sub 2/. United States: N. p., 1988. Web. doi:10.1063/1.340750.
Moshchalkov, V V, Aliev, F, Kovachik, V, Zalyaljutdinov, M, Palstra, T T.M., Menovsky, A A, & Mydosh, J A. Anisotropy of the upper critical field in the magnetic heavy-fermion superconductor URu/sub 2/Si/sub 2/. United States. doi:10.1063/1.340750.
Moshchalkov, V V, Aliev, F, Kovachik, V, Zalyaljutdinov, M, Palstra, T T.M., Menovsky, A A, and Mydosh, J A. Fri . "Anisotropy of the upper critical field in the magnetic heavy-fermion superconductor URu/sub 2/Si/sub 2/". United States. doi:10.1063/1.340750.
@article{osti_5326508,
title = {Anisotropy of the upper critical field in the magnetic heavy-fermion superconductor URu/sub 2/Si/sub 2/},
author = {Moshchalkov, V V and Aliev, F and Kovachik, V and Zalyaljutdinov, M and Palstra, T T.M. and Menovsky, A A and Mydosh, J A},
abstractNote = {Measurements have been performed of the upper critical field H/sub c//sub 2/ anisotropy in the magnetic heavy-fermion superconductor URu/sub 2/Si/sub 2/. The dH/sub c//sub 2//dT value is constant within 5% when H is rotated in the basal plane, whereas chemically bonddH/sub c//sub 2//dTchemically bond decreases by about 35% for H rotated by 20/sup 0/--30/sup 0/ out of the basal plane. Contrary to CeCu/sub 2/Si/sub 2/ the H/sub c//sub 2/ anisotropy in URu/sub 2/Si/sub 2/ is enhanced as temperature decreases below T/sub c/. This disparity can be attributed to the different strengths of paramagnetic and spin-orbit effects responsible for the suppression of superconductivity by a magnetic field in CeCu/sub 2/Si/sub 2/ and URu/sub 2/Si/sub 2/.},
doi = {10.1063/1.340750},
journal = {J. Appl. Phys.; (United States)},
number = ,
volume = 63:8,
place = {United States},
year = {1988},
month = {4}
}