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  Pressure-induced transition to the collapsed tetragonal phase in BaCr2As2

Naumov, P. G., Filsinger, K., Barkalov, O. I., Fecher, G. H., Medvediev, S. A., & Felser, C. (2017). Pressure-induced transition to the collapsed tetragonal phase in BaCr2As2. Physical Review B, 95(14): 144106, pp. 1-6. doi:10.1103/PhysRevB.95.144106.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-3F0C-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-D6D5-D
Genre: Journal Article

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 Creators:
Naumov, P. G.1, Author              
Filsinger, K.1, Author              
Barkalov, O. I.1, Author              
Fecher, G. H.2, Author              
Medvediev, S. A.3, Author              
Felser, C.4, Author              
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Gerhard Fecher, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863431              
3Sergiy Medvediev, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863438              
4Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 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.

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Language(s): eng - English
 Dates: 2017-04-072017-04-07
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Method: -
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 95 (14) Sequence Number: 144106 Start / End Page: 1 - 6 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008