Superconductivity under Pressure in FeSe1-xTex Studied by DC Magnetic Measurements

被引：1

作者：

Miyoshi, K. ^{[1
]}

Kondo, M. ^{[1
]}

Morishita, K. ^{[1
]}

Mutou, E. ^{[1
]}

Takeuchi, J. ^{[1
]}

机构：

[1] Shimane Univ, Dept Mat Sci, Matsue, Shimane 6908504, Japan

来源：

20TH INTERNATIONAL CONFERENCE ON MAGNETISM, ICM 2015 | 2015年 / 75卷

关键词：

superconductivity; iron-pnictides; FeSe1-xTex; high pressure;

D O I：

10.1016/j.phpro.2015.12.196

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Superconductivity under pressure in FeSe1-xTex with x= 0.7 (T-c similar to 14 K) has been investigated by the measurements of DC magnetization using high quality single crystal specimens. It has been found that T-c increases and makes a maximum of similar to 15 K at 1 GPa but rapidly decreases above 1 GPa under hydrostatic pressure using liquid Ar as pressure transmitting media (PTM). In contrast, T-c is found to increase up to 18 K at 2.5 GPa then decrease gradually under nearly uniaxial pressure along c-axis using NaCl as PTM. It is also found that T-c reaches a maximum of 16 K at 1 GPa but is nearly pressure independent above 1 GPa under nearly uniaxial pressure along a-axis. These behaviors suggest that the superconductivity is suppressed by the isotropic compression but is enhanced (not changed) by the uniaxial compression along c-axis (a-axis).

引用

页码：266 / 271

页数：6

共 50 条

[21] Transport properties of FeSe1-xTex thin films under magnetic fields up to 8 T
Sawada, Yuichi
Nabeshima, Fuyuki
Asami, Daisuke
Ogawa, Ryo
Imai, Yoshinori
Maeda, Atsutaka
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2016, 530 : 27 - 30
[22] Weak localization in FeSe1-xTex superconducting thin films
Chang, H. H.
Luo, J. Y.
Wu, C. T.
Hsu, F. C.
Huang, T. W.
Wu, P. M.
Wu, M. K.
Wang, M. J.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2012, 25 (03):
[23] Magnetic and superconducting properties of FeSe1-xTex (x0, 0.5, and 1.0)
Fedorchenko, A.V.
Grechnev, G.E.
Desnenko, V.A.
Panfilov, A.S.
Gnatchenko, S.L.
Tsurkan, V.V.
Deisenhofer, J.
Von Nidda, H.-A. Krug
Loidl, A.
Chareev, D.A.
Volkova, O.S.
Vasiliev, A.N.
Fizika Nizkikh Temperatur, 2011, 37 (01): : 100 - 107
[24] The vortex state of FeSe1-xTex superconducting thin films
Chang, H. H.
Luo, J. Y.
Wu, C. T.
Hsu, F. C.
Huang, T. W.
Wu, P. M.
Wu, M. K.
Wang, M. J.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2011, 24 (10):
[25] Orbital mixing at the onset of high-temperature superconductivity in FeSe1-xTex/CaF2
Nakayama, K.
Tsubono, R.
Phan, G. N.
Nabeshima, F.
Shikama, N.
Ishikawa, T.
Sakishita, Y.
Ideta, S.
Tanaka, K.
Maeda, A.
Takahashi, T.
Sato, T.
PHYSICAL REVIEW RESEARCH, 2021, 3 (01):
[26] Phase Separation and Microstructure in Superconducting FeSe1-xTex Materials
Masi, Andrea
Alvani, Carlo
Augieri, Andrea
Bellusci, Mariangela
Celentano, Giuseppe
De Marzi, Gianluca
Fabbri, Fabio
Zignani, Chiarasole Fiamozzi
La Barbera, Aurelio
Padella, Franco
Pentimalli, Marzia
Silva, Enrico
Vannozzi, Angelo
Varsano, Francesca
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2018, 28 (04)
[27] Influence of strain and composition on Tc in FeSe1-xTex films
Horide, Tomoya
Sanyoushi, Masahiro
Ichinose, Ataru
Matsumoto, Kaname
JOURNAL OF APPLIED PHYSICS, 2014, 116 (21)
[28] Electronic Structure of FeSe1-xTex Studied by X-ray Spectroscopy and Density Functional Theory
Perez, I.
Mcleod, J. A.
Green, R. J.
Escamilla, R.
Ortiz, V.
Moewes, A.
JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (43): : 25150 - 25157
[29] Microwave surface impedance measurements of LiFeAs, LiFe(As,P) and FeSe1-xTex single crystals
Imai, Y.
Takahashi, H.
Okada, T.
Yoshinaka, T.
Komiya, S.
Kitagawa, K.
Matsubayashi, K.
Tsukada, I.
Uwatoko, Y.
Maeda, A.
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2011, 471 (21-22): : 630 - 633
[30] Specific heat in magnetic fields and superconducting gap structure in FeSe1-xTex (0.6 ≤ x ≤ 1)
Konno, Takuya
Adachi, Tadashi
Imaizumi, Masato
Noji, Takashi
Kawamata, Takayuki
Koike, Yoji
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2014, 504 : 16 - 18

← 1 2 3 4 5 →