Zobrazeno 1 - 10
of 119
pro vyhledávání: '"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
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043123 (2022)
Superconductivity in FeSe is strongly enhanced under applied pressure and it is proposed to emerge from anomalously coupled structural and magnetic phases. Small impurities inside the Fe plane can strongly disrupt the pair formation in FeSe at ambien
Externí odkaz:
https://doaj.org/article/bacbe3cfa0ae4b4a9757dedac4883056
Autor:
Y. H. Kwan, P. Reiss, Y. Han, M. Bristow, D. Prabhakaran, D. Graf, A. McCollam, S. A. Parameswaran, A. I. Coldea
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 012055 (2020)
Nodal semimetals are a unique platform to explore topological signatures of the unusual band structure that can manifest by accumulating a nontrivial phase in quantum oscillations. Here we report a study of the de Haas–van Alphen oscillations of th
Externí odkaz:
https://doaj.org/article/5830c9b28e014a8880cb53e8961b5585
Autor:
M. Bristow, P. Reiss, A. A. Haghighirad, Z. Zajicek, S. J. Singh, T. Wolf, D. Graf, W. Knafo, A. McCollam, A. I. Coldea
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 013309 (2020)
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://doaj.org/article/5eddf7636db84f089b2cb884d89ae38a
Autor:
L. J. Collins-McIntyre, M. D. Watson, A. A. Baker, S. L. Zhang, A. I. Coldea, S. E. Harrison, A. Pushp, A. J. Kellock, S. S. P. Parkin, G. van der Laan, T. Hesjedal
Publikováno v:
AIP Advances, Vol 4, Iss 12, Pp 127136-127136-11 (2014)
We report the growth of Mn-doped Bi2Se3 thin films by molecular beam epitaxy (MBE), investigated by x-ray diffraction (XRD), atomic force microscopy (AFM), SQUID magnetometry and x-ray magnetic circular dichroism (XMCD). Epitaxial films were deposite
Externí odkaz:
https://doaj.org/article/596a1f2296a44a33ad44618433b23d88
Autor:
Amalia I. Coldea
Publikováno v:
Frontiers in Physics, Vol 8 (2021)
Isoelectronic substitution is an ideal tuning parameter to alter electronic states and correlations in iron-based superconductors. As this substitution takes place outside the conducting Fe planes, the electronic behaviour is less affected by the imp
Externí odkaz:
https://doaj.org/article/1315a20f0ff74b7095f3a3aeda7a8b8a
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
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
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Autor:
Liam S. Farrar, Zachary Zajicek, Archie B. Morfoot, Matthew Bristow, Oliver S. Humphries, Amir A. Haghighirad, Alix McCollam, Simon J. Bending, Amalia I. Coldea
Publikováno v:
Farrar, L S, Zajicek, Z, Morfoot, A B, Bristow, M, Humphries, O S, Haghighirad, A A, McCollam, A, Bending, S J & Coldea, A I 2022, ' Unconventional localization of electrons inside of a nematic electronic phase ', Proceedings of the National Academy of Sciences of the United States of America, vol. 119, no. 43, e2200405119 . https://doi.org/10.1073/pnas.2200405119
Proceedings of the National Academy of Sciences USA, 119, 43, pp. 1-8
Proceedings of the National Academy of Sciences USA, 119, 1-8
Proceedings of the National Academy of Sciences USA, 119, 43, pp. 1-8
Proceedings of the National Academy of Sciences USA, 119, 1-8
The magnetotransport behaviour inside the nematic phase of bulk FeSe reveals unusual multiband effects that cannot be reconciled with a simple two-band approximation proposed by surface-sensitive spectroscopic probes. In order to understand the role
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b0418715945b3631be8760bf30c1b98
https://doi.org/10.1073/pnas.2200405119
https://doi.org/10.1073/pnas.2200405119
Autor:
Rafael M. Fernandes, Amalia I. Coldea, Hong Ding, Ian R. Fisher, P. J. Hirschfeld, Gabriel Kotliar
Superconductivity is a remarkably widespread phenomenon that is observed in most metals cooled to very low temperatures. The ubiquity of such conventional superconductors, and the wide range of associated critical temperatures, is readily understood
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78a9118af079f1444867362fba820bb5
https://ora.ox.ac.uk/objects/uuid:ee05e4b9-d5c1-41bc-bb6d-6e9f7d6d2a84
https://ora.ox.ac.uk/objects/uuid:ee05e4b9-d5c1-41bc-bb6d-6e9f7d6d2a84