Giant Overlap between the Magnetic and Superconducting Phases of CeAu_{2}Si_{2} under Pressure

Autor: Z. Ren, L. V. Pourovskii, G. Giriat, G. Lapertot, A. Georges, D. Jaccard

Publikováno v: Physical Review X, Vol 4, Iss 3, p 031055 (2014)

High pressure provides a powerful means for exploring unconventional superconductivity which appears mostly on the border of magnetism. Here, we report the discovery of pressure-induced heavy-fermion superconductivity up to 2.5 K in the antiferromang

Externí odkaz: https://doaj.org/article/cdcb3abd9f9a4d3dbb35934a35b836ce

High-pressure study of the ground- and superconducting-state properties of CeAu$_2$Si$_2$

Autor: Z. Ren, Didier Jaccard, Gérard Lapertot, G. Giriat, G. W. Scheerer

Publikováno v: Journal of the Physical Society of Japan
Journal of the Physical Society of Japan, 2017, 86 (6), pp.064710. ⟨10.7566/JPSJ.86.064710⟩
Journal of the Physical Society of Japan, Physical Society of Japan 日本物理学会, 2017, 86 (6), pp.064710. ⟨10.7566/JPSJ.86.064710⟩

The pressure-temperature-phase diagram of the new heavy-fermion superconductor CeAu$_2$Si$_2$ is markedly different from those studied previously. Indeed, superconductivity emerges, not on the verge, but deep inside the magnetic phase. In this contex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56df2957e65c7fb4562f1bc519e3a218
http://arxiv.org/abs/1611.03234

Effect of disorder on the pressure-induced superconducting state ofCeAu2Si2

Autor: Gérard Lapertot, G. W. Scheerer, G. Giriat, Zhe Ren, Didier Jaccard

Publikováno v: Physical Review B. 91

${\mathrm{CeAu}}_{2}{\mathrm{Si}}_{2}$ is a newly discovered pressure-induced heavy fermion superconductor, which shows very unusual interplay between superconductivity and magnetism under pressure. Here we compare the results of high-pressure measur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d0205891d113fe16fcee7427ce61058c
https://doi.org/10.1103/physrevb.91.094515

Giant Overlap between the Magnetic and Superconducting Phases ofCeAu2Si2under Pressure

Autor: Z. Ren, Leonid Pourovskii, Didier Jaccard, Gérard Lapertot, Antoine Georges, G. Giriat

Publikováno v: Physical Review X. 4

Pressures of hundreds of kbar can induce unexpected material properties. The antiferromagnet CeAu${}_{2}$Si${}_{2}$ is shown to have overlapping magnetic and superconducting phases at high pressures.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e64f98baa4ff6ca277a1e19a41ad10c
https://doi.org/10.1103/physrevx.4.031055

Suppression of geometric frustration by magnetoelastic coupling in AuCrS2

Autor: Andrea Gauzzi, S. J. E. Carlsson, H. Kuriki, Gwenaëlle Rousse, G. Giriat, R. Takahashi, Ikuya Yamada, F. Levy-Bertrand

Publikováno v: Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2011, 84, pp.094455. ⟨10.1103/PhysRevB.84.094455⟩
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2011, 84, pp.094455. ⟨10.1103/PhysRevB.84.094455⟩

We studied the structural, magnetic, and electronic properties of the geometrically frustrated layered AuCrS${}_{2}$ system by means of x-ray and neutron powder diffraction, specific heat, dc magnetization, and dc electrical resistivity measurements.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b938456b651c8e721e06a030a2354b2b
https://doi.org/10.1103/physrevb.84.094455