Structure and electrical resistivity of mixed-valent EuNi2P2 at high pressure

Medvedev, S. A.; Naumov, P.; Barkalov, O.; Shekhar, C.; Palasyuk, T.; Ksenofontov, V.; Wortmann, G.; Felser, C.

doi:10.1088/0953-8984/26/33/335701

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Structure and electrical resistivity of mixed-valent EuNi₂P₂ at high pressure

Medvedev, S. A., Naumov, P., Barkalov, O., Shekhar, C., Palasyuk, T., Ksenofontov, V., et al. (2014). Structure and electrical resistivity of mixed-valent EuNi₂P₂ at high pressure. Journal of Physics: Condensed Matter, 26: 335701, pp. 1-5. doi:10.1088/0953-8984/26/33/335701.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0023-CE78-2 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-D6E4-B

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Creators:
Medvedev, S. A.¹, Author
Naumov, P.², Author
Barkalov, O.², Author
Shekhar, C.³, Author
Palasyuk, T.⁴, Author
Ksenofontov, V.⁴, Author
Wortmann, G.⁴, Author
Felser, C.⁵, Author

Affiliations:
1Sergiy Medvediev, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863438
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425
3Chandra Shekhar, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863428
4External Organizations, ou_persistent22
5Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429

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Abstract: The structural properties and electrical resistivity of homogeneous mixed-valent EuNi2P2 are studied at pressures up to 45?GPa. No structural phase transition is observed in the whole pressure range and the overall pressure behavior of the structural parameters is similar to that of related compounds in the collapsed tetragonal ThCr2Si2-type structure. Electrical resistivity measured up to 31?GPa at temperatures between 4 and 300?K exhibits continuous changes from the behavior typical for a mixed-valent Eu system to that of a normal metallic system at pressures above 20?GPa, indicating a transition of the strongly mixed-valent Eu atoms with a valence ~2.5 towards a pure trivalent state. No superconductivity was observed in the whole studied pressure-temperature range.

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Language(s): eng - English

Dates: Published Online: 2014-07-24Date issued: 2014-07-24

Publication Status: Issued

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Identifiers: DOI: 10.1088/0953-8984/26/33/335701

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Title: Journal of Physics: Condensed Matter

Source Genre: Journal

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Publ. Info: Bristol : IOP Publishing

Pages: - Volume / Issue: 26 Sequence Number: 335701 Start / End Page: 1 - 5 Identifier: ISSN: 0953-8984
CoNE: https://pure.mpg.de/cone/journals/resource/954928562478