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Akademický článek

Stabilizing electromagnons in CuO under pressure

Autor: M. Verseils, P. Hemme, D. Bounoua, R. Cervasio, J-B. Brubach, S. Houver, Y. Gallais, A. Sacuto, D. Colson, T. Iijima, M. Mochizuki, P. Roy, M. Cazayous

Publikováno v: npj Quantum Materials, Vol 8, Iss 1, Pp 1-7 (2023)

Abstract Electromagnons (Electroactive spin wave excitations) could prove to be decisive in information technologies but they remain fragile quantum objects, mainly existing at low temperatures. Any future technological application requires overcomin

Externí odkaz: https://doaj.org/article/2535cc50f9b54ea8b66efcc652953cb5

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Akademický článek

Lattice-shifted nematic quantum critical point in FeSe1−x S x

Autor: S. Chibani, D. Farina, P. Massat, M. Cazayous, A. Sacuto, T. Urata, Y. Tanabe, K. Tanigaki, A. E. Böhmer, P. C. Canfield, M. Merz, S. Karlsson, P. Strobel, P. Toulemonde, I. Paul, Y. Gallais

Publikováno v: npj Quantum Materials, Vol 6, Iss 1, Pp 1-8 (2021)

Abstract We report the evolution of nematic fluctuations in FeSe1−x S x single crystals as a function of Sulfur content x across the nematic quantum critical point (QCP) x c ~ 0.17 via Raman scattering. The Raman spectra in the B 1g nematic channel

Externí odkaz: https://doaj.org/article/35745c90ce6a4938948a39f74b9de131

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Akademický článek

Nematic fluctuations in the cuprate superconductor Bi2Sr2CaCu2O8+δ

Autor: N. Auvray, B. Loret, S. Benhabib, M. Cazayous, R. D. Zhong, J. Schneeloch, G. D. Gu, A. Forget, D. Colson, I. Paul, A. Sacuto, Y. Gallais

Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)

Solid evidence of quantum fluctuations associated to a quantum critical point in cuprate superconductors remains elusive. Here, Auvray et al. report Raman scattering evidence of enhanced electronic nematic fluctuations near the endpoint of the pseudo

Externí odkaz: https://doaj.org/article/413a8ca19350488696f400962a9da73f

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Akademický článek

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Spin singlet and quasiparticle excitations in cuprate superconductors

Autor: M. Mezidi, A. Alekhin, G. D. Gu, D. Colson, S. Houver, M. Cazayous, Y. Gallais, A. Sacuto

Publikováno v: Physical Review B. 106

We followed step by step the transition from an antiferromagnetic (AF) Mott insulator to a superconducting (SC) metal in the Bi$_2$Sr$_2$CaCu$_{2}$O$_{8+\delta}$ (Bi-2212) cuprate using the electronic Raman scattering spectroscopy. This was achieved

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c1f20cba7708b2e81cdb3cb904b4691
https://doi.org/10.1103/physrevb.106.174513

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Elastic and magnetoelastic properties of TbMnO3 single crystal by nanosecond time resolved acoustics and first-principles calculations

Autor: P Hemme, C-H Li, P Djemia, P Rovillain, S Houver, Y Gallais, A Sacuto, H Sakata, S Nowak, B Baptiste, E Charron, B Perrin, L Belliard, M Cazayous

Publikováno v: Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter, IOP Publishing, 2021, 33 (49), pp.495402. ⟨10.1088/1361-648X/ac25ad⟩

Time resolved pump and probe acoustics and first-principles calculations were employed to assess elastic properties of the TbMnO3 perovskite manganite having orthorhombic symmetry. Measuring sound velocities of bulk longitudinal and shear acoustic wa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f96e90bb3435d4670b8cde9c56307736
http://arxiv.org/abs/2109.15023

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