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          Institute: MPI für Chemische Physik fester Stoffe     Collection: publications 2012     Display Documents



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ID: 648282.0, MPI für Chemische Physik fester Stoffe / publications 2012
Calorimetric study of the superconducting and normal state properties of Ca(Fe1-xCox)2As2
Authors:Abdel-Hafiez, M.; Harnagea, L.; Singh, S.; Stockert, U.; Wurmehl, S.; Leps, N.; Klingeler, R.; Wolter, A. U. B.; Büchner, B.
Language:English
Date of Publication (YYYY-MM-DD):2012-06-30
Title of Journal:Journal of Physics: Conference Series
Volume:391
Issue / Number:1
Start Page:012120-1
End Page:012120-6
Sequence Number of Article:012120
Review Status:not specified
Audience:Not Specified
Abstract / Description:We present a calorimetric study on single crystals of Ca(Fe 1− x Co x ) 2 As 2 ( x = 0, 0.032, 0.051, 0.056, 0.063, and 0.146). The combined first order spin-density wave/structural transition occurs in the parent CaFe 2 As 2 compound at 168 K and gradually shifts to lower temperature for low doping levels ( x = 0.032 and x = 0.051). It is completely suppressed upon higher doping x ≥ 0.056. Simultaneously, superconductivity appears at lower temperature with a transition temperature around T c ~ 14.1 K for Ca(Fe 0.937 Co 0.063 ) 2 As 2 . The phase diagram of Ca(Fe 0.937 Co 0.063 ) 2 As 2 has been derived and the upper critical field is found to be μ 0 H ( c ) 2 = 11.5 T and μ 0 H (ab) c 2 = 19.4 T for the c and ab directions, respectively.
External Publication Status:published
Document Type:Article
Communicated by:Ina Werner
Affiliations:MPI für chemische Physik fester Stoffe
Identifiers:ISSN:1742-6596 [ID No:1]
URL:http://stacks.iop.org/1742-6596/391/i=1/a=012120 [ID No:2]
DOI:10.1088/1742-6596/391/1/012120
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