Superconductivity in MgPtSi: An orthorhombic variant of MgB2

Kazutaka Kudo; Kazunori Fujimura; Seiichiro Onari; Hiromi Ota; Minoru Nohara

doi:10.1103/PhysRevB.91.174514

Superconductivity in MgPtSi: An orthorhombic variant of MgB₂

Kazutaka Kudo, Kazunori Fujimura, Seiichiro Onari, Hiromi Ota, Minoru Nohara

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

5 Citations (Scopus)

Abstract

A ternary compound, MgPtSi, was synthesized by solid-state reaction. An examination of the compound by powder X-ray diffraction revealed that it crystallizes in the orthorhombic TiNiSi-type structure with the Pnma space group. The structure comprises alternately stacked layers of Mg and PtSi honeycomb network, which is reminiscent of MgB2, and the buckling of the honeycomb network causes orthorhombic distortion. Electrical and magnetic studies revealed that MgPtSi exhibited superconductivity with a transition temperature of 2.5 K. However, its isostructural compounds, namely, MgRhSi and MgIrSi, were not found to exhibit superconductivity.

Original language	English
Article number	174514
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	91
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.91.174514
Publication status	Published - May 19 2015

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Superconductivity in MgPtSi: An orthorhombic variant of MgB2",

abstract = "A ternary compound, MgPtSi, was synthesized by solid-state reaction. An examination of the compound by powder X-ray diffraction revealed that it crystallizes in the orthorhombic TiNiSi-type structure with the Pnma space group. The structure comprises alternately stacked layers of Mg and PtSi honeycomb network, which is reminiscent of MgB2, and the buckling of the honeycomb network causes orthorhombic distortion. Electrical and magnetic studies revealed that MgPtSi exhibited superconductivity with a transition temperature of 2.5 K. However, its isostructural compounds, namely, MgRhSi and MgIrSi, were not found to exhibit superconductivity.",

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AU - Kudo, Kazutaka

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AU - Ota, Hiromi

AU - Nohara, Minoru

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AB - A ternary compound, MgPtSi, was synthesized by solid-state reaction. An examination of the compound by powder X-ray diffraction revealed that it crystallizes in the orthorhombic TiNiSi-type structure with the Pnma space group. The structure comprises alternately stacked layers of Mg and PtSi honeycomb network, which is reminiscent of MgB2, and the buckling of the honeycomb network causes orthorhombic distortion. Electrical and magnetic studies revealed that MgPtSi exhibited superconductivity with a transition temperature of 2.5 K. However, its isostructural compounds, namely, MgRhSi and MgIrSi, were not found to exhibit superconductivity.

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