Zobrazeno 1 - 10
of 56
pro vyhledávání: '"P. J. Hirschfeld"'
Publikováno v:
npj Quantum Materials, Vol 9, Iss 1, Pp 1-9 (2024)
Abstract Motivated by the recent observation of superconductivity with T c ~ 80 K in pressurized La3Ni2O7 1, we explore the structural and electronic properties of A 3Ni2O7 bilayer nickelates (A = La-Lu, Y, Sc) as a function of pressure (0–150 GPa)
Externí odkaz:
https://doaj.org/article/4259e5480ff14829a614ece741ed515d
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
Considerable evidence shows that the heavy fermion material UTe2 is a spin-triplet superconductor, possibly manifesting time-reversal symmetry breaking, as measured by Kerr effect below the critical temperature, in some samples. Such signals can aris
Externí odkaz:
https://doaj.org/article/799c778fadab4fed90bc240a9e5bebf9
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
A growing number of superconducting materials display evidence for spontaneous time-reversal symmetry breaking (TRSB) below their critical transition temperatures. Precisely what this implies for the nature of the superconducting ground state of such
Externí odkaz:
https://doaj.org/article/04fd71d97c1a4d14b76eea747e634efa
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract In weakly coupled BCS superconductors, only electrons within a tiny energy window around the Fermi energy, E F , form Cooper pairs. This may not be the case in strong coupling superconductors such as cuprates, FeSe, SrTiO3 or cold atom conde
Externí odkaz:
https://doaj.org/article/17c24163170f427483c14493bb35ca36
Autor:
J. Lim, A. C. Hire, Y. Quan, J. S. Kim, S. R. Xie, S. Sinha, R. S. Kumar, D. Popov, C. Park, R. J. Hemley, Y. K. Vohra, J. J. Hamlin, R. G. Hennig, P. J. Hirschfeld, G. R. Stewart
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
In 2001 superconductivity with a high critical temperature of 39 K was discovered in MgB2, but efforts since then to identify other diboride-family superconductors have been mostly unsuccessful. Here, the authors report the discovery of superconducti
Externí odkaz:
https://doaj.org/article/ccbabfda73334abe8ec0655026b7c144
Autor:
S. R. Xie, Y. Quan, A. C. Hire, B. Deng, J. M. DeStefano, I. Salinas, U. S. Shah, L. Fanfarillo, J. Lim, J. Kim, G. R. Stewart, J. J. Hamlin, P. J. Hirschfeld, R. G. Hennig
Publikováno v:
npj Computational Materials, Vol 8, Iss 1, Pp 1-8 (2022)
Abstract The Eliashberg theory of superconductivity accounts for the fundamental physics of conventional superconductors, including the retardation of the interaction and the Coulomb pseudopotential, to predict the critical temperature T c. McMillan,
Externí odkaz:
https://doaj.org/article/c25d0db147d04280aefda86430a4ab02
Autor:
A. Kreisel, C. A. Marques, L. C. Rhodes, X. Kong, T. Berlijn, R. Fittipaldi, V. Granata, A. Vecchione, P. Wahl, P. J. Hirschfeld
Publikováno v:
npj Quantum Materials, Vol 6, Iss 1, Pp 1-9 (2021)
Abstract The single-layered ruthenate Sr2RuO4 is one of the most enigmatic unconventional superconductors. While for many years it was thought to be the best candidate for a chiral p-wave superconducting ground state, desirable for topological quantu
Externí odkaz:
https://doaj.org/article/5d179f9271bb46bd95fa9f7a194b2e54
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
Recent resonant inelastic x-ray scattering (RIXS) experiments have detected a significant high-energy spin-excitation anisotropy in the nematic phase of the enigmatic iron-based superconductor FeSe, whose origin remains controversial. We apply an iti
Externí odkaz:
https://doaj.org/article/d96c6681ade24a4288020aee21b9ec8f
Autor:
Rahul Sharma, Andreas Kreisel, Miguel Antonio Sulangi, Jakob Böker, Andrey Kostin, Milan P. Allan, H. Eisaki, Anna E. Böhmer, Paul C. Canfield, Ilya Eremin, J. C. Séamus Davis, P. J. Hirschfeld, Peter O. Sprau
Publikováno v:
npj Quantum Materials, Vol 6, Iss 1, Pp 1-7 (2021)
Abstract Complete theoretical understanding of the most complex superconductors requires a detailed knowledge of the symmetry of the superconducting energy-gap $${\mathrm{{\Delta}}}_{\mathbf{k}}^\alpha$$ Δ k α , for all momenta k on the Fermi surfa
Externí odkaz:
https://doaj.org/article/97145cbfdfec440a8f2c15b397204a4b
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-6 (2020)
Experiments indicate an abrupt change in the pairing gap near the nematic transition in the FeSe1−x S x iron-based superconductor. Here, Setty et al. propose to explain them via a novel spin-1/2 paired state with topologically protected zero-energy
Externí odkaz:
https://doaj.org/article/b18d9da1e96f4ce0ab1686d30260a353