Stabilization of superconducting LnPt2B2C by partial substitution of gold for platinum

R. J. Cava; B. Batlogg; J. J. Krajewski; W. F. Peck; T. Siegrist; R. M. Fleming; S. Carter; H. Takagi; R. J. Felder; R. B. van Dover; L. W. Rupp

doi:10.1016/0921-4534(94)90493-6

Stabilization of superconducting LnPt₂B₂C by partial substitution of gold for platinum

R. J. Cava, B. Batlogg, J. J. Krajewski, W. F. Peck, T. Siegrist, R. M. Fleming, S. Carter, H. Takagi, R. J. Felder, R. B. van Dover, L. W. Rupp

Research output: Contribution to journal › Article › peer-review

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Abstract

The quaternary intermetallic compounds LnPt₂B₂C (Ln=La, Pr and Y) were recently shown to be superconducting at temperatures up to 10.5 K. Annealing conditions were not found, however, which yielded single-phase material. Here it is reported that the partial substitution of Au for Pt in LnPt₂B₂C yields essentially single-phase polycrystalline material under annealing conditions readily accessible by conventional techniques. This is accomplished through arcmelting LnPt_1.5Au_0.6B₂C, a composition slightly superstoichiometric in transition metal, and annealing at 1100°C in Ta foil: a small amount of melt phase formed in the anneal is wicked away from the sample leaving good-quality material behind.

Original language	English (US)
Pages (from-to)	170-174
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	226
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(94)90493-6
State	Published - Jun 1 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(94)90493-6

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title = "Stabilization of superconducting LnPt2B2C by partial substitution of gold for platinum",

abstract = "The quaternary intermetallic compounds LnPt2B2C (Ln=La, Pr and Y) were recently shown to be superconducting at temperatures up to 10.5 K. Annealing conditions were not found, however, which yielded single-phase material. Here it is reported that the partial substitution of Au for Pt in LnPt2B2C yields essentially single-phase polycrystalline material under annealing conditions readily accessible by conventional techniques. This is accomplished through arcmelting LnPt1.5Au0.6B2C, a composition slightly superstoichiometric in transition metal, and annealing at 1100°C in Ta foil: a small amount of melt phase formed in the anneal is wicked away from the sample leaving good-quality material behind.",

author = "Cava, {R. J.} and B. Batlogg and Krajewski, {J. J.} and Peck, {W. F.} and T. Siegrist and Fleming, {R. M.} and S. Carter and H. Takagi and Felder, {R. J.} and {van Dover}, {R. B.} and Rupp, {L. W.}",

year = "1994",

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doi = "10.1016/0921-4534(94)90493-6",

language = "English (US)",

volume = "226",

pages = "170--174",

journal = "Physica C: Superconductivity and its applications",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Stabilization of superconducting LnPt2B2C by partial substitution of gold for platinum

AU - Cava, R. J.

AU - Batlogg, B.

AU - Krajewski, J. J.

AU - Peck, W. F.

AU - Siegrist, T.

AU - Fleming, R. M.

AU - Carter, S.

AU - Takagi, H.

AU - Felder, R. J.

AU - van Dover, R. B.

AU - Rupp, L. W.

PY - 1994/6/1

Y1 - 1994/6/1

N2 - The quaternary intermetallic compounds LnPt2B2C (Ln=La, Pr and Y) were recently shown to be superconducting at temperatures up to 10.5 K. Annealing conditions were not found, however, which yielded single-phase material. Here it is reported that the partial substitution of Au for Pt in LnPt2B2C yields essentially single-phase polycrystalline material under annealing conditions readily accessible by conventional techniques. This is accomplished through arcmelting LnPt1.5Au0.6B2C, a composition slightly superstoichiometric in transition metal, and annealing at 1100°C in Ta foil: a small amount of melt phase formed in the anneal is wicked away from the sample leaving good-quality material behind.

AB - The quaternary intermetallic compounds LnPt2B2C (Ln=La, Pr and Y) were recently shown to be superconducting at temperatures up to 10.5 K. Annealing conditions were not found, however, which yielded single-phase material. Here it is reported that the partial substitution of Au for Pt in LnPt2B2C yields essentially single-phase polycrystalline material under annealing conditions readily accessible by conventional techniques. This is accomplished through arcmelting LnPt1.5Au0.6B2C, a composition slightly superstoichiometric in transition metal, and annealing at 1100°C in Ta foil: a small amount of melt phase formed in the anneal is wicked away from the sample leaving good-quality material behind.

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U2 - 10.1016/0921-4534(94)90493-6

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VL - 226

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JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - 1-2

ER -

Stabilization of superconducting LnPt₂B₂C by partial substitution of gold for platinum

Abstract

All Science Journal Classification (ASJC) codes

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