Emergence of superconductivity in the canonical heavy-electron metal YbRh2Si2

被引：79

作者：

Schuberth, Erwin ^{[1
,2
]}

Tippmann, Marc ^{[1
,3
]}

Steinke, Lucia ^{[1
,2
]}

Lausberg, Stefan ^{[2
]}

Steppke, Alexander ^{[2
]}

Brando, Manuel ^{[2
]}

Krellner, Cornelius ^{[2
,4
]}

Geibel, Christoph ^{[2
]}

Yu, Rong ^{[5
,6
]}

Si, Qimiao ^{[7
]}

Steglich, Frank ^{[2
,8
,9
]}

机构：

[1] Bayer Akad Wissensch, Walther Meissner Inst Tieftemp Forsch, D-85748 Garching, Germany

[2] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany

[3] Tech Univ Munich, Dept Phys, D-80333 Munich, Germany

[4] Goethe Univ Frankfurt, Inst Phys, D-60438 Frankfurt, Germany

[5] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China

[6] Shanghai Jiao Tong Univ, Collaborat Innovat Ctr Adv Microstruct, Dept Phys & Astron, Shanghai 200240, Peoples R China

[7] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

[8] Zhejiang Univ, Ctr Correlated Matter, Hangzhou 310058, Zhejiang, Peoples R China

[9] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

来源：

SCIENCE | 2016年 / 351卷 / 6272期

基金：

美国国家科学基金会;

关键词：

QUANTUM CRITICALITY; FERMI-SURFACE;

D O I：

10.1126/science.aaa9733

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：

The smooth disappearance of antiferromagnetic order in strongly correlated metals commonly furnishes the development of unconventional superconductivity. The canonical heavy-electron compound YbRh2Si2 seems to represent an apparent exception from this quantum critical paradigm in that it is not a superconductor at temperature T >= 10 millikelvin (mK). Here we report magnetic and calorimetric measurements on YbRh2Si2, down to temperatures as low as T approximate to 1 mK. The data reveal the development of nuclear antiferromagnetic order slightly above 2 mK and of heavy-electron superconductivity almost concomitantly with this order. Our results demonstrate that superconductivity in the vicinity of quantum criticality is a general phenomenon.

引用

页码：485 / 488

页数：4

共 50 条

[31] First-principles study of the electronic structure of heavy fermion YbRh2Si2
Jeong, T.
Pickett, W. E.
JOURNAL OF PHYSICS-CONDENSED MATTER, 2006, 18 (27) : 6289 - 6297
[32] Spin dynamics in YbRh2Si2 probed by ESR
Mironov, GI
Ivanshin, VA
PHYSICA B-CONDENSED MATTER, 2005, 359 : 47 - 49
[33] Effect of chemical substitution and pressure on YbRh2Si2
Nicklas, M.
Macovei, M. E.
Ferstl, J.
Krellner, C.
Geibel, C.
Steglich, F.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2010, 247 (03): : 727 - 730
[34] Dehybridization of f and d states in the heavy-fermion system YbRh2Si2
Leuenberger, D.
Sobota, J. A.
Yang, S. -L.
Pfau, H.
Kim, D. -J.
Mo, S. -K.
Fisk, Z.
Kirchmann, P. S.
Shen, Z. -X.
PHYSICAL REVIEW B, 2018, 97 (16)
[35] Field-induced suppression of the heavy-fermion state in YbRh2Si2
Zwicknagl, Gertrud
JOURNAL OF PHYSICS-CONDENSED MATTER, 2011, 23 (09)
[36] Electron paramagnetic resonance of Yb3+ ions in a concentrated YbRh2Si2 compound with heavy fermions
Ivan'shin, VA
Aminov, LK
Kurkin, IN
Sichelschmidt, J
Stockert, O
Ferstl, J
Geibel, C
JETP LETTERS, 2003, 77 (09) : 526 - 529
[37] New magnetically ordered phases in YbRh2Si2
Schuberth, Erwin
Tippmann, Marc
Krellner, Cornelius
Steglich, Frank
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2013, 250 (03): : 482 - 484
[38] Evolution of the 4f electron localization from YbRh2Si2 to YbRh2Pb studied by electron spin resonance
Ivanshin, V. A.
Litvinova, T. O.
Ivanshin, N. A.
Poeppl, A.
Sokolov, D. A.
Aronson, M. C.
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2014, 118 (05) : 760 - 764
[39] Low-temperature properties of YbRh2Si2
Trovarelli, O
Geibel, C
Steglich, F
PHYSICA B, 2000, 284 : 1507 - 1508
[40] Evolution of the 4f electron localization from YbRh2Si2 to YbRh2Pb studied by electron spin resonance
V. A. Ivanshin
T. O. Litvinova
N. A. Ivanshin
A. Pöppl
D. A. Sokolov
M. C. Aronson
Journal of Experimental and Theoretical Physics, 2014, 118 : 760 - 764

← 1 2 3 4 5 →