Anisotropy of Upper Critical Field in a One-Dimensional Organic System, (TMTTF)2PF6 under High Pressure

2012 ◽  
Vol 81 (2) ◽  
pp. 024716 ◽  
Author(s):  
Mika Kano ◽  
Hatsumi Mori ◽  
Kazuyuki Matsubayashi ◽  
Miho Itoi ◽  
Masato Hedo ◽  
...  
Keyword(s):  
High Pressure ◽  
Critical Field ◽  
Upper Critical Field ◽  
Organic System ◽  
One Dimensional

Electrical resistivity of a quasi-one-dimensional organic system under high pressure

1992 ◽  
Vol 4 (21) ◽  
pp. L307-L312 ◽  
Author(s):  
Y Singh ◽  
D P Goswami ◽  
M Bala ◽  
M L Kalra
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Organic System ◽  
One Dimensional

FLUX PINNING MECHANISM IN NEW MgCNi3 SUPERCONDUCTOR

2005 ◽  
Vol 19 (01n03) ◽  
pp. 327-330
Author(s):  
M. H. FANG ◽  
J. H. YANG ◽  
H. Y. WAN ◽  
W. ZHANG ◽  
M. KATO ◽  
...  
Keyword(s):  
High Pressure ◽  
Critical Field ◽  
Flux Pinning ◽  
Upper Critical Field ◽  
Structural Defects ◽  
Pinning Force ◽  
Irreversibility Field ◽  
Pinning Mechanism ◽  
Lower Critical Field ◽  
Flux Lattice

The measurements of lower-critical-field Hc1(T), upper-critical-field Hc2(T) and the bulk pinning force Fp(H) were carried out for a superconductor MgCNi 3 sample with Tc=7.5K prepared under high pressure. The sample has a good extensibility. We conclude that the flux pinning at lower fields results from the intra-granular structural defects, such as dislocations, and the enhancement of bulk pinning force near the irreversibility field Hirr is due to the softening of the flux lattice.

RESISTIVE UPPER CRITICAL FIELD OF SUPERCONDUCTING SPIN-LADDER Sr14-xCaxCu24O41

2000 ◽  
Vol 14 (29n31) ◽  
pp. 3617-3622 ◽  
Author(s):  
T. NAKANISHI ◽  
N. MOTOYAMA ◽  
H. MITAMURA ◽  
N. TAKESHITA ◽  
H. TAKAHASHI ◽  
...  
Keyword(s):  
High Pressure ◽  
Critical Field ◽  
Pressure Range ◽  
Upper Critical Field ◽  
Anomalous Behavior ◽  
Spin Ladder ◽  
Two Dimensional ◽  
High Pressure Cell ◽  
Upward Curvature ◽  
Superconducting Oxides

We report the resistive upper critical field Hc2(T) of the hole-doped two-leg ladder Sr 14-x Ca x Cu 24 O 41(x=12) single crystal, which becomes superconducting with Tc~5 K in a pressure range above ~3.0 GPa . Using a newly developed compact high-pressure cell, the magneto-transport measurements have been performed at temperatures down to ~140 mK under high pressure above 3.5 GPa. It is found that Hc2 (perpendicular to the ladder Cu 2 O 3 plane) increases anomalously as the temperature is decreased having an upward curvature and shows no saturation down to T/T c ~ 0.03. Also, its temperature dependence is found to resemble that of the high-Tc superconducting oxide Tl 2 Ba 2 CuO 6. This fact suggests that the anomalous behavior of Hc2 has a common origin between the ladders and the two-dimensional high-Tc superconducting oxides.

Upper critical field of CeCu2Si2 at very high pressure

1998 ◽  
Vol 106 (9) ◽  
pp. 631-636 ◽  
Author(s):  
E. Vargoz ◽  
D. Jaccard ◽  
J.Y. Genoud ◽  
J.P. Brison ◽  
J. Flouquet
Keyword(s):  
High Pressure ◽  
Critical Field ◽  
Upper Critical Field ◽  
Very High

scholarly journals Angular dependence of the upper critical field in the high-pressure 1T′ phase of MoTe2

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Y. J. Hu ◽  
Yuk Tai Chan ◽  
Kwing To Lai ◽  
Kin On Ho ◽  
Xiaoyu Guo ◽  
...  
Keyword(s):  
High Pressure ◽  
Angular Dependence ◽  
Critical Field ◽  
Upper Critical Field
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