High temperature superconductivity (Tc onset at 34K) in the high pressure orthorhombic phase of FeSe
Gaston Garbarino,Amadou Sow,Pascal Lejay,A. Sulpice,Pierre Toulemonde,Mohamed Mezouar,Manuel Núñez-Regueiro +6 more
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In this paper, the structural and superconducting properties of tetragonal FeSe under pressure up to 26GPa were studied using synchrotron radiation and diamond anvil cells.Abstract:
We have studied the structural and superconducting properties of tetragonal FeSe under pressures up to 26GPa using synchrotron radiation and diamond anvil cells. The bulk modulus of the tetragonal phase is 28.5(3)GPa, much smaller than the rest of Fe based superconductors. At 12GPa we observe a phase transition from the tetragonal to an orthorhombic symmetry. The high pressure orthorhombic phase has a higher Tc reaching 34K at 22GPa.read more
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Charge-carrier localization induced by excess Fe in the superconductor Fe 1 + y Te 1 − x Se x
Tijiang Liu,Xianglin Ke,B. Qian,Jin Hu,David Fobes,E. K. Vehstedt,Huy Pham,Jing Yang,M. H. Fang,M. H. Fang,Leonard Spinu,Peter Schiffer,Yang Liu,Zhiqiang Mao +13 more
TL;DR: In this article, the effect of Fe nonstoichiometry on properties of the superconductor system by means of resistivity, Hall coefficient, magnetic susceptibility, and specific heat measurements was investigated.
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Theoretical evidence for strong correlations and incoherent metallic state in FeSe
Markus Aichhorn,Silke Biermann,Takashi Miyake,Antoine Georges,Antoine Georges,Masatoshi Imada +5 more
TL;DR: In this article, the role of electronic Coulomb correlations in superconductors is investigated and theoretical evidence for strong correlation effects in FeSe is provided based on dynamical mean field calculations.
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Nematicity, magnetism and superconductivity in FeSe
Anna E. Böhmer,Andreas Kreisel +1 more
TL;DR: An overview of nematicity, magnetism and superconductivity is presented, and the interplay of these phases in FeSe is discussed, focusing on bulk FeSe and the effects of physical pressure and chemical substitutions as tuning parameters.
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Fabrication of the Iron-Based Superconducting Wire Using Fe(Se,Te)
Yoshikazu Mizuguchi,Yoshikazu Mizuguchi,Keita Deguchi,Keita Deguchi,Shunsuke Tsuda,Takahide Yamaguchi,Hiroyuki Takeya,Hiroaki Kumakura,Hiroaki Kumakura,Yoshihiko Takano,Yoshihiko Takano +10 more
TL;DR: In this article, a powder-in-tube (PIT) method was used to synthesize the superconducting phases of the Fe(Se,Te) wire, and zero resistivity current was observed on the current?voltage measurements.
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Electronic nematic susceptibility of iron-based superconductors
TL;DR: In this article, the electronic nematic phase in electron-and hole-doped BaFe 2 As 2 and FeSe was analyzed using a three-point-bending method in a capacitance dilatometer.