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  Insight into the physics of the 5f -band antiferromagnet U2Ni2Sn from the pressure dependence of crystal structure and electrical resistivity

Maskova-Cerna, S., Kolomiets, A., Prchal, J., Halevy, I., Buturlim, V., Nikolaevsky, M., et al. (2021). Insight into the physics of the 5f -band antiferromagnet U2Ni2Sn from the pressure dependence of crystal structure and electrical resistivity. Physical Review B, 103: 035104, pp. 1-15. doi:10.1103/PhysRevB.103.035104.

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 Creators:
Maskova-Cerna, Silvie1, Author
Kolomiets, Alexandre1, Author
Prchal, Jiri1, Author
Halevy, Itzhak1, Author
Buturlim, Volodymyr1, Author
Nikolaevsky, Mark1, Author
Koloskova, Oleksandra1, Author
Kozelj, Primoz2, Author              
König, Markus3, Author              
Divis, Martin1, Author
Sandratskii, Leonid M.1, Author
Kastil, Jiri1, Author
Andreev, Alexander V.1, Author
Svanidze, Eteri2, Author              
Havela, Ladislav1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
3Markus König, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863470              

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 Abstract: A resistivity study of a single crystal of U2Ni2Sn has been performed at ambient pressure and under hydrostatic pressure up to p=3.3GPa. It revealed Fermi-liquid behavior accompanied by spin excitations with an energy gap Δ=30-55K in the whole pressure range. The Néel temperature varies with pressure in a nonmonotonous way. It increases at the rate dTN/dp=+0.6K/GPa, and later, after passing through the maximum at ≈3 GPa, it starts to decrease quickly. High-pressure x-ray diffraction indicated that an orthorhombic distortion of the tetragonal structure takes place around the pressure of this TN maximum. The computational study based on the density functional theory illustrates that the loss of magnetism in U2Ni2Sn with pressure is primarily due to 5f-band broadening, which results from the collapse of the U spacing within the U-U dimers. © 2021 American Physical Society.

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Language(s): eng - English
 Dates: 2021-01-062021-01-06
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1103/PhysRevB.103.035104
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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: 103 Sequence Number: 035104 Start / End Page: 1 - 15 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008