Spin susceptibility, upper critical field, and disorder effect in j = 3 2 superconductors with singlet–quintet mixing

2020 ◽  
Vol 128 (6) ◽  
pp. 063904
Author(s):  
Jiabin Yu ◽  
Chao-Xing Liu
Keyword(s):  
Critical Field ◽  
Upper Critical Field ◽  
Spin Susceptibility ◽  
Disorder Effect

scholarly journals Spin susceptibility of charge-ordered YBa2Cu3Oy across the upper critical field

2017 ◽  
Vol 114 (50) ◽  
pp. 13148-13153 ◽  
Author(s):  
Rui Zhou ◽  
Michihiro Hirata ◽  
Tao Wu ◽  
Igor Vinograd ◽  
Hadrien Mayaffre ◽  
...  
Keyword(s):  
Long Range ◽  
Critical Field ◽  
Density Wave ◽  
Upper Critical Field ◽  
Spin Susceptibility ◽  
Copper Oxides ◽  
Superconducting Gap ◽  
Zero Field ◽  
Fermi Surface Reconstruction ◽  
Probe Measurements

The value of the upper critical field Hc2, a fundamental characteristic of the superconducting state, has been subject to strong controversy in high-Tc copper oxides. Since the issue has been tackled almost exclusively by macroscopic techniques so far, there is a clear need for local-probe measurements. Here, we use 17O NMR to measure the spin susceptibility χspin of the CuO2 planes at low temperature in charge-ordered YBa2Cu3Oy. We find that χspin increases (most likely linearly) with magnetic field H and saturates above field values ranging from 20 T to 40 T. This result is consistent with the lowest Hc2 values claimed previously and with the interpretation that the charge density wave (CDW) reduces Hc2 in underdoped YBa2Cu3Oy. Furthermore, the absence of marked deviation in χspin(H) at the onset of long-range CDW order indicates that this Hc2 reduction and the Fermi-surface reconstruction are primarily rooted in the short-range CDW order already present in zero field, not in the field-induced long-range CDW order. Above Hc2, the relatively low values of χspin at T= 2 K show that the pseudogap is a ground-state property, independent of the superconducting gap.

Enhancement of critical temperature and upper critical field due to Nb substitution in Zr-V alloy superconductors

2020 ◽  
Author(s):  
Sabyasachi Paul ◽  
S. K. Ramjan ◽  
L. S. Sharath Chandra ◽  
Archna Sagdeo ◽  
M. K. Chattopadhyay
Keyword(s):  
Critical Temperature ◽  
Critical Field ◽  
Upper Critical Field

scholarly journals Experimental and theoretical analysis of the upper critical field in ferromagnet–superconductor–ferromagnet trilayers

2013 ◽  
Vol 26 (8) ◽  
pp. 085003 ◽  
Author(s):  
E Antropov ◽  
M S Kalenkov ◽  
J Kehrle ◽  
V I Zdravkov ◽  
R Morari ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Critical Field ◽  
Upper Critical Field

scholarly journals Superconductivity with High Upper Critical Field in the Cubic Centrosymmetric η-Carbide Nb4Rh2C1−δ

2021 ◽  
Author(s):  
KeYuan Ma ◽  
Karolina Gornicka ◽  
Robin Lefèvre ◽  
Yikai Yang ◽  
Henrik M. Rønnow ◽  
...  
Keyword(s):  
Critical Field ◽  
Upper Critical Field

Upper Critical Field of New Oxide Superconductor Bi-Sr-Ca-Cu-O

1988 ◽  
Vol 27 (Part 2, No. 4) ◽  
pp. L668-L669 ◽  
Author(s):  
Hiroaki Kumakura ◽  
Hitoshi Shimizu ◽  
Kazuhiko Takahashi ◽  
Kazumasa Togano ◽  
Hiroshi Maeda
Keyword(s):  
Critical Field ◽  
Upper Critical Field ◽  
Oxide Superconductor

Magnetization, upper critical field, and isotropy in single crystals YNi2B2C

1994 ◽  
Vol 235-240 ◽  
pp. 2533-2534 ◽  
Author(s):  
Ming Xu ◽  
B.K. Cho ◽  
P.C. Canfield ◽  
D.K. Finnemore ◽  
D.C. Johnston ◽  
...  
Keyword(s):  
Single Crystals ◽  
Critical Field ◽  
Upper Critical Field

scholarly journals The upper critical field of CeCoIn5

2011 ◽  
Vol 13 (11) ◽  
pp. 113039 ◽  
Author(s):  
Ludovic Howald ◽  
Georg Knebel ◽  
Dai Aoki ◽  
Gérard Lapertot ◽  
Jean-Pascal Brison
Keyword(s):  
Critical Field ◽  
Upper Critical Field

Upper critical field and thermopower studies in Ni substituted Li2Pd3B superconductor

2009 ◽  
Vol 149 (23-24) ◽  
pp. 899-902 ◽  
Author(s):  
Awadhesh Mani ◽  
N. Gayathri ◽  
A. Bharathi
Keyword(s):  
Critical Field ◽  
Upper Critical Field
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