Superconducting critical temperature elevated by intense magnetic fields

被引：0

作者：

Wu, Z. ^{[1
]}

Chen, H. ^{[1
]}

Weinberger, T. I. ^{[1
]}

Cabala, A. ^{[2
]}

Graf, D. E. ^{[3
]}

Skourski, Y. ^{[4
]}

Xie, W.

Ling, Y. ^{[5
]}

Zhu, Z. ^{[5
]}

Sechovsky, V. ^{[2
]}

Valiska, M. ^{[2
]}

Grosche, F. M. ^{[1
]}

Eaton, A. G. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Phys, Cavendish Lab, Cambridge CB3 0HE, England

[2] Charles Univ Prague, Fac Math & Phys, Dept Condensed Matter Phys, Prague 2, Czech Republic

[3] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

[4] Helmholtz Zent Dresden Rossendorf, Hochfeld Magnetlabor Dresden HLD EMFL, D-01328 Dresden, Germany

[5] Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2025年 / 122卷 / 02期

关键词：

triplet superconductor; high magnetic; heavy fermion;

D O I：

10.1073/pnas.2422156122

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Below a critical temperature T-c, superconductors transport electrical charge without dissipative energy losses. The application of a magnetic field B generally acts to suppress Tc, up to some critical field strength at which T-c -> 0 K. Here, we investigate magnetic field-induced superconductivity in high-quality specimens of the triplet superconductor candidate UTe2 in pulsed magnetic fields up to B = 70 T. Strikingly, we find that this material has a higher T-c when B > 40 T (T-c approximate to 2.4 K) than it does for B = 0 T (T-c approximate to 2.1 K). This observation points to a fundamentally distinct mechanism for the formation of superconductivity at high B in UTe2 compared to the case of B = 0 T.

引用

页数：3

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