Two-band superconductivity featuring different anisotropies in the ternary iron silicide Lu2Fe3Si5

被引：19

作者：

Nakajima, Yasuyuki ^{[1
,2
]}

Hidaka, Hikaru ^{[1
]}

Nakagawa, Tsuyoshi ^{[1
]}

Tamegai, Tsuyoshi ^{[1
,2
]}

Nishizaki, Terukazu ^{[3
]}

Sasaki, Takahiko ^{[3
]}

Kobayashi, Norio ^{[3
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[2] JST TRIP, Bunkyo Ku, Tokyo 1138656, Japan

[3] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 17期

关键词：

UPPER CRITICAL-FIELD; TEMPERATURE;

D O I：

10.1103/PhysRevB.85.174524

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report detailed studies of the upper critical field and low-temperature specific heat in the two-gap superconductor Lu2Fe3Si5. The anisotropy of the upper critical field suggests that the active band is quasi-one-dimensional. Low-temperature specific heat in magnetic fields reveals that the virtual H-c2 in the passive band is almost isotropic. These results strongly indicate that the two bands have two different anisotropies, similar to the typical two-gap superconductor MgB2, and their interplay may be essential to the two-gap superconductivity in Lu2Fe3Si5.

引用

页数：5

共 50 条

[31] Two-Band Calculations on the Upper Critical Field of Sc2Fe3Si5
Liu, Minxia
Yang, Lichun
Xu, Yongzhao
Zhang, Geng
Zhang, Rui
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2016, 29 (10) : 2519 - 2522
[32] Two-Band Calculations on the Upper Critical Field of Sc2Fe3Si5
Minxia Liu
Lichun Yang
Yongzhao Xu
Geng Zhang
Rui Zhang
Journal of Superconductivity and Novel Magnetism, 2016, 29 : 2519 - 2522
[33] Two-gap superconductivity in R2Fe3Si5 (R = Lu and Sc)
Tamegai, T.
Nakajima, Y.
Nakagawa, T.
Li, G. J.
Harima, H.
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PT 5A: SUPERCONDUCTIVITY, 2009, 150 (5a):
[34] Superconductivity in ternary iron silicide YFe2-δSi2 single crystal
Goto, Ryosuke
Noguchi, Satoru
Ishida, Takekazu
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2010, 470 : S404 - S405
[35] Disorder-sensitive superconductivity in the doped iron silicide superconductor (Lu1-xRx)2Fe3Si5 (R=Sc, Y, and Dy)
Watanabe, Tadataka
Sasame, Hiroki
Okuyama, Hiroaki
Takase, Kouichi
Takano, Yoshiki
PHYSICAL REVIEW B, 2009, 80 (10):
[36] Non-magnetic impurity effect on suppression of Tc and gap evolution in the two-gap superconductor Lu2Fe3Si5
Nakajima, Y.
Hidaka, H.
Tamegai, T.
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2013, 484 : 49 - 51
[37] Specific heat of single crystal MgB2: A two-band superconductor with two different anisotropies
Bouquet, F.
Wang, Y.
Sheikin, I.
Plackowski, T.
Iunod, A.
Lee, S.
Tajima, S.
Physical Review Letters, 2002, 89 (25) : 1 - 257001
[38] THE EFFECT OF TRANSITION-METAL IMPURITIES ON THE SUPERCONDUCTING TRANSITION-TEMPERATURE OF THE COMPOUND LU2FE3SI5
XU, YW
SHELTON, RN
SOLID STATE COMMUNICATIONS, 1988, 68 (04) : 395 - 398
[39] JOSEPHSON EFFECT IN THE UNUSUAL SUPERCONDUCTORS LU2FE3SI5, LITI2O4, AND UBE13
WOLF, EL
NOER, RJ
HAN, S
NG, KW
CHEN, TP
FINNEMORE, DK
TANNER, L
PHYSICA B & C, 1985, 135 (1-3): : 65 - 68
[40] Two-gap superconductivity in R2Fe3Si5 (R=Lu, Sc) and Sc5Ir4Si10
Tamegai, Tsuyoshi
Nakajima, Yasuyuki
Nakagawa, Tsuyoshi
Li, Guoji
Harima, Hisatomo
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2008, 9 (04)

← 1 2 3 4 5 →