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  Fermi-surface reconstruction at the metamagnetic high-field transition in uranium mononitride

Hamann, S., Förster, T., Gorbunov I, D., König, M., Uhlarz, M., Wosnitza, J., et al. (2021). Fermi-surface reconstruction at the metamagnetic high-field transition in uranium mononitride. Physical Review B, 104(15): 155123, pp. 1-8. doi:10.1103/PhysRevB.104.155123.

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 Creators:
Hamann, S.1, Author              
Förster, T.2, Author
Gorbunov I, D.2, Author
König, M.3, Author              
Uhlarz, M.2, Author
Wosnitza, J.2, Author
Helm, T.4, Author              
Affiliations:
1Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
2External Organizations, ou_persistent22              
3Markus König, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863470              
4Physics of Microstructured Quantum Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_2466701              

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 Abstract: We report on the electronic and thermodynamic properties of the antiferromagnetic metal uranium mononitride with a Neel temperature T-N approximate to 53 K. The fabrication of microstructures from single crystals enables us to study the low-temperature metamagnetic transition at approximately 58 T by high-precision magnetotransport, Hall-effect, and magnetic-torque measurements. We confirm the evolution of the high-field transition from a broad and complex behavior to a sharp first-order-like step, associated with a spin flop at low temperature. In the high-field state, the magnetic contribution to the temperature dependence of the resistivity is suppressed completely. It evolves into an almost quadratic dependence at low temperatures indicative of a metallic character. Our detailed investigation of the Hall effect provides evidence for a prominent Fermi-surface reconstruction as the system is pushed into the high-field state.

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Language(s): eng - English
 Dates: 2021-10-132021-10-13
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
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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: 104 (15) Sequence Number: 155123 Start / End Page: 1 - 8 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008