Pressure-induced transition to the collapsed tetragonal phase in BaC r2 A s2

Naumov PG, Filsinger K, Barkalov OI, Fecher GH, Medvedev SA, Felser C (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Physical Review B American Physical Society

Book Volume: 95

Article Number: 144106

Journal Issue: 14

DOI: 10.1103/PhysRevB.95.144106

Abstract

The structural and electronic properties of BaCr2As2, which is isostructural to the 122 iron arsenide superconductors, are studied at high pressures using synchrotron x-ray powder diffraction, electrical resistivity measurements, and first-principles calculations. At a pressure of about 18.5 GPa, an isostructural phase transition to a collapsed tetragonal phase is observed, similar to that in BaFe2As2. In both phases, BaCr2As2 is a normal metal. Electronic structure calculations suggest a metallic and antiferromagnetic ground state with G-type magnetic order for the collapsed tetragonal phase.

Involved external institutions

Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE)

How to cite

APA:

Naumov, P.G., Filsinger, K., Barkalov, O.I., Fecher, G.H., Medvedev, S.A., & Felser, C. (2017). Pressure-induced transition to the collapsed tetragonal phase in BaC r2 A s2. Physical Review B, 95(14). https://doi.org/10.1103/PhysRevB.95.144106

MLA:

Naumov, P. G., et al. "Pressure-induced transition to the collapsed tetragonal phase in BaC r2 A s2." Physical Review B 95.14 (2017).

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