Anisotropy of the upper critical field in the magnetic heavy-fermion superconductor URu2Si2

V. V. Moshchalkov; F. Aliev; V. Kovachik; M. Zalyaljutdinov; T. T M Palstra; A. A. Menovsky; J. A. Mydosh

doi:10.1063/1.340750

Anisotropy of the upper critical field in the magnetic heavy-fermion superconductor URu₂Si₂

V. V. Moshchalkov^*, F. Aliev, V. Kovachik, M. Zalyaljutdinov, T. T M Palstra, A. A. Menovsky, J. A. Mydosh

^*Corresponding author for this work

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Abstract

Measurements have been performed of the upper critical field H_c2 anisotropy in the magnetic heavy-fermion superconductor URu₂Si ₂. The dH_c2/dT value is constant within 5% when H is rotated in the basal plane, whereas ∥dH_c2/dT∥ decreases by about 35% for H rotated by 20°-30°out of the basal plane. Contrary to CeCu₂Si₂ the H_c2 anisotropy in URu ₂Si₂ is enhanced as temperature decreases below T _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 CeCu₂Si₂ and URu₂Si₂.

Original language	English
Pages (from-to)	3414-3416
Number of pages	3
Journal	Journal of Applied Physics
Volume	63
Issue number	8
DOIs	https://doi.org/10.1063/1.340750
Publication status	Published - 1 Dec 1988
Externally published	Yes

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title = "Anisotropy of the upper critical field in the magnetic heavy-fermion superconductor URu2Si2",

abstract = "Measurements have been performed of the upper critical field Hc2 anisotropy in the magnetic heavy-fermion superconductor URu2Si 2. The dHc2/dT value is constant within 5% when H is rotated in the basal plane, whereas ∥dHc2/dT∥ decreases by about 35% for H rotated by 20°-30°out of the basal plane. Contrary to CeCu2Si2 the Hc2 anisotropy in URu 2Si2 is enhanced as temperature decreases below T 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 CeCu2Si2 and URu2Si2.",

author = "Moshchalkov, {V. V.} and F. Aliev and V. Kovachik and M. Zalyaljutdinov and Palstra, {T. T M} and Menovsky, {A. A.} and Mydosh, {J. A.}",

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T1 - Anisotropy of the upper critical field in the magnetic heavy-fermion superconductor URu2Si2

AU - Moshchalkov, V. V.

AU - Aliev, F.

AU - Kovachik, V.

AU - Zalyaljutdinov, M.

AU - Palstra, T. T M

AU - Menovsky, A. A.

AU - Mydosh, J. A.

PY - 1988/12/1

Y1 - 1988/12/1

N2 - Measurements have been performed of the upper critical field Hc2 anisotropy in the magnetic heavy-fermion superconductor URu2Si 2. The dHc2/dT value is constant within 5% when H is rotated in the basal plane, whereas ∥dHc2/dT∥ decreases by about 35% for H rotated by 20°-30°out of the basal plane. Contrary to CeCu2Si2 the Hc2 anisotropy in URu 2Si2 is enhanced as temperature decreases below T 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 CeCu2Si2 and URu2Si2.

AB - Measurements have been performed of the upper critical field Hc2 anisotropy in the magnetic heavy-fermion superconductor URu2Si 2. The dHc2/dT value is constant within 5% when H is rotated in the basal plane, whereas ∥dHc2/dT∥ decreases by about 35% for H rotated by 20°-30°out of the basal plane. Contrary to CeCu2Si2 the Hc2 anisotropy in URu 2Si2 is enhanced as temperature decreases below T 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 CeCu2Si2 and URu2Si2.

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ER -

Anisotropy of the upper critical field in the magnetic heavy-fermion superconductor URu₂Si₂

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