Upper critical magnetic fields of the heavy fermion superconductors CeCu2Si2, UPt3, and UBe13: Comparison between experiment and theory期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Upper critical magnetic fields of the heavy fermion superconductors CeCu2Si2, UPt3, and UBe13: Comparison between experiment and theory

Authors:	U. Rauchschwalbe U. Ahlheim F. Steglich D. Rainer J. J. M. Franse

Affiliation:	(1) Institut für Festkörperphysik, Technische Hochschule Darmstadt, Hochschulstrasse 2, D-6100 Darmstadt, Federal Republic of Germany;(2) Lehrstuhl für Theoretische Physik III, Universität Bayreuth, Universitätsstrasse 30, D-8580 Bayreuth, Federal Republic of Germany;(3) Natuurkundig Laboratorium, Universiteit van Amsterdam, Valckenierstraat 65, NL-1018 XE Amsterdam, The Netherlands

Abstract:	We report measurements of the upper critical magnetic field,B_c2(T), on single crystal and polycrystalline samples of the heavy-fermion superconductors CeCu₂Si₂, UPt₃ and UBe₁₃. Comparison is made with experimental results for a conventional superconductor (CeRu₃Si₂) and with results of the weak-coupling theory applied to both ans-wave superconductor in the dirty-limit and ap-wave superconductor. New anomalies are discovered to add to the unusualB_c2(T) behavior.Dedicated to B. Mühlschlegel on the occasion of his 60th birthday

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