Transport and thermodynamic properties of (Ca1-xLa x)10(Pt3As8)(Fe2As 2)5 superconductors

N. Ni; W. E. Straszheim; D. J. Williams; M. A. Tanatar; R. Prozorov; E. D. Bauer; F. Ronning; J. D. Thompson; R. J. Cava

doi:10.1103/PhysRevB.87.060507

Transport and thermodynamic properties of (Ca_1-xLa _x)₁₀(Pt₃As₈)(Fe₂As ₂)₅ superconductors

N. Ni, W. E. Straszheim, D. J. Williams, M. A. Tanatar, R. Prozorov, E. D. Bauer, F. Ronning, J. D. Thompson, R. J. Cava

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25 Scopus citations

Abstract

Single crystals of (Ca_1-xLa_x)₁₀(Pt ₃As₈)(Fe₂As₂)₅ (x=0-0.182) superconductors have been grown and characterized by x-ray, microprobe, transport, and thermodynamic measurements. Features in the magnetic susceptibility, specific heat, and two kinks in the derivative of the electrical resistivity around 100 K in the x=0 compound support the existence of decoupled structural and magnetic phase transitions. With La doping, the structural/magnetic phase transitions are suppressed and a half dome of superconductivity with a maximal T_c around 26 K is observed in the temperature-concentration phase diagram.

Original language	English (US)
Article number	060507
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	87
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.87.060507
State	Published - Feb 22 2013

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.87.060507

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title = "Transport and thermodynamic properties of (Ca1-xLa x)10(Pt3As8)(Fe2As 2)5 superconductors",

abstract = "Single crystals of (Ca1-xLax)10(Pt 3As8)(Fe2As2)5 (x=0-0.182) superconductors have been grown and characterized by x-ray, microprobe, transport, and thermodynamic measurements. Features in the magnetic susceptibility, specific heat, and two kinks in the derivative of the electrical resistivity around 100 K in the x=0 compound support the existence of decoupled structural and magnetic phase transitions. With La doping, the structural/magnetic phase transitions are suppressed and a half dome of superconductivity with a maximal Tc around 26 K is observed in the temperature-concentration phase diagram.",

author = "N. Ni and Straszheim, {W. E.} and Williams, {D. J.} and Tanatar, {M. A.} and R. Prozorov and Bauer, {E. D.} and F. Ronning and Thompson, {J. D.} and Cava, {R. J.}",

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T1 - Transport and thermodynamic properties of (Ca1-xLa x)10(Pt3As8)(Fe2As 2)5 superconductors

AU - Ni, N.

AU - Straszheim, W. E.

AU - Williams, D. J.

AU - Tanatar, M. A.

AU - Prozorov, R.

AU - Bauer, E. D.

AU - Ronning, F.

AU - Thompson, J. D.

AU - Cava, R. J.

PY - 2013/2/22

Y1 - 2013/2/22

N2 - Single crystals of (Ca1-xLax)10(Pt 3As8)(Fe2As2)5 (x=0-0.182) superconductors have been grown and characterized by x-ray, microprobe, transport, and thermodynamic measurements. Features in the magnetic susceptibility, specific heat, and two kinks in the derivative of the electrical resistivity around 100 K in the x=0 compound support the existence of decoupled structural and magnetic phase transitions. With La doping, the structural/magnetic phase transitions are suppressed and a half dome of superconductivity with a maximal Tc around 26 K is observed in the temperature-concentration phase diagram.

AB - Single crystals of (Ca1-xLax)10(Pt 3As8)(Fe2As2)5 (x=0-0.182) superconductors have been grown and characterized by x-ray, microprobe, transport, and thermodynamic measurements. Features in the magnetic susceptibility, specific heat, and two kinks in the derivative of the electrical resistivity around 100 K in the x=0 compound support the existence of decoupled structural and magnetic phase transitions. With La doping, the structural/magnetic phase transitions are suppressed and a half dome of superconductivity with a maximal Tc around 26 K is observed in the temperature-concentration phase diagram.

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Transport and thermodynamic properties of (Ca_1-xLa _x)₁₀(Pt₃As₈)(Fe₂As ₂)₅ superconductors

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