Superconductivity in the crystallogenide LaFeSiO1−δ with squeezed FeSi layers

Autor: M. F. Hansen, J.-B. Vaney, C. Lepoittevin, F. Bernardini, E. Gaudin, V. Nassif, M.-A. Méasson, A. Sulpice, H. Mayaffre, M.-H. Julien, S. Tencé, A. Cano, P. Toulemonde

Publikováno v: npj Quantum Materials, Vol 7, Iss 1, Pp 1-8 (2022)

Abstract Pnictogens and chalcogens are both viable anions for promoting Fe-based superconductivity, and intense research activity in the related families has established a systematic correlation between the Fe-anion height and the superconducting cri

Externí odkaz: https://doaj.org/article/28b2468484a5419c997734a708e30348

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Strain and Magnetic Field Induced Spin-Structure Transitions in Multiferroic BiFeO 3

Autor: Roger Johnson, Pascal Manuel, Jean Juraszek, P. Rovillain, J-M Le Breton, Alain Sacuto, Brahim Dkhil, Manuel Bibes, Yann Gallais, A. Barthélémy, C. Carrétéro, R Rüffer, A. K. Zvezdin, Charles Paillard, C. Toulouse, A Agbelele, Daniel Sando, Maximilien Cazayous, M. A. Méasson, A F Popkov

Publikováno v: Advanced Materials
Advanced Materials, Wiley-VCH Verlag, 2017, 2017, pp.1602327-1602327. ⟨10.1002/adma.201602327⟩
Advanced Materials, 2017, 2017, pp.1602327-1602327. ⟨10.1002/adma.201602327⟩

The magnetic-field-dependent spin ordering of strained BiFeO3 films is determined using nuclear resonant scattering and Raman spectroscopy. The critical field required to destroy the cycloidal modulation of the Fe spins is found to be significantly l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d29ac0d03842eb79a01dfd078402e3e3
https://hal.archives-ouvertes.fr/hal-01523523

Unconventional High-Energy-State Contribution to the Cooper Pairing in the Underdoped Copper-Oxide Superconductor HgBa_{2}Ca_{2}Cu_{3}O_{8+δ}

Autor: B, Loret, S, Sakai, Y, Gallais, M, Cazayous, M-A, Méasson, A, Forget, D, Colson, M, Civelli, A, Sacuto

Publikováno v: Physical review letters. 116(19)

We study the temperature-dependent electronic B_{1g} Raman response of a slightly underdoped single crystal HgBa_{2}Ca_{2}Cu_{3}O_{8+δ} with a superconducting critical temperature T_{c}=122 K. Our main finding is that the superconducting pair-breaki

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::815ca43497a162d1ff661379bfa2e8e1
https://pubmed.ncbi.nlm.nih.gov/27232035