Unveiling the quasiparticle behaviour in the pressure-induced high-T c phase of an iron-chalcogenide superconductor

Autor: Z. Zajicek, P. Reiss, D. Graf, J. C. A. Prentice, Y. Sadki, A. A. Haghighirad, A. I. Coldea

Publikováno v: npj Quantum Materials, Vol 9, Iss 1, Pp 1-8 (2024)

Abstract Superconductivity of iron chalocogenides is strongly enhanced under applied pressure yet its underlying pairing mechanism remains elusive. Here, we present a quantum oscillations study up to 45 T in the high-T c phase of tetragonal FeSe0.82S

Externí odkaz: https://doaj.org/article/d481613c15f7427daf92372803e0fa0e

Drastic effect of impurity scattering on the electronic and superconducting properties of Cu-doped FeSe

Autor: Z. Zajicek, S. J. Singh, H. Jones, P. Reiss, M. Bristow, A. Martin, A. Gower, A. McCollam, A. I. Coldea

Publikováno v: Physical Review B, 105, 11, pp. 1-14
Physical Review B, 105, 1-14

Non-magnetic impurities in iron-based superconductors can provide an important tool to understand the pair symmetry and they can influence significantly the transport and the superconducting behaviour. Here, we present a study of the role of strong i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d9b6b54be9becb7a66f4fb83e80ff8f
https://doi.org/10.1103/physrevb.105.115130

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Anomalous high-magnetic field electronic state of the nematic superconductors FeSe1 - xSx

Autor: Alix McCollam, David Graf, Z. Zajicek, Amalia I. Coldea, Shiv J. Singh, T. Wolf, William Knafo, A. A. Haghighirad, Pascal Reiss, Matthew Bristow

Publikováno v: Physical Review Research, 2
Physical Review Research, 2, 1
Physical Review Research
Physical Review Research, American Physical Society, 2020, 2 (1), ⟨10.1103/PhysRevResearch.2.013309⟩
Physical Review Research, 2020, 2 (1), ⟨10.1103/PhysRevResearch.2.013309⟩

Understanding superconductivity requires detailed knowledge of the normal electronic state from which it emerges. A nematic electronic state that breaks the rotational symmetry of the lattice can potentially promote unique scattering relevant for sup

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::103e8c83a1962837e8687d01189b9930
http://hdl.handle.net/2066/228093

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