scholarly journals Upper critical fields of quasi-low-dimensional superconductors with coexisting singlet and triplet pairing interactions in parallel magnetic fields

2000 ◽  
Vol 62 (5) ◽  
pp. 3524-3527 ◽  
Author(s):  
Hiroshi Shimahara
Keyword(s):  
Magnetic Fields ◽  
Critical Fields ◽  
Triplet Pairing ◽  
Upper Critical Fields ◽  
Pairing Interactions ◽  
Low Dimensional ◽  
Parallel Magnetic Fields

Upper critical fields of pressurized organic superconductors κ-(BEDT-TTF)2X in the magnetic fields parallel to the layer

2003 ◽  
Vol 133-134 ◽  
pp. 197-200 ◽  
Author(s):  
Y. Shimojo ◽  
S. Kamiya ◽  
M.A. Tanatar ◽  
E. Ohmichi ◽  
A.E. Kovalev ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Organic Superconductors ◽  
Critical Fields ◽  
Upper Critical Fields

Magnetoresistance and Upper Critical Fields of Oriented TlBaCaCuO Thin Films in Pulsed High Magnetic Fields up to 40 T

1989 ◽  
Vol 58 (8) ◽  
pp. 2877-2883 ◽  
Author(s):  
Wolfgang Staguhn ◽  
Koichi Nakao ◽  
Noboru Miura ◽  
Michael von Ortenberg ◽  
Shin-ichiro Hatta ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Fields ◽  
High Magnetic Fields ◽  
Critical Fields ◽  
Upper Critical Fields

Investigation of lower critical fields of MgB2 thin films on SiC/Si substrate with parallel magnetic fields

2006 ◽  
Vol 435 (1-2) ◽  
pp. 74-77 ◽  
Author(s):  
Akihiko Nishida ◽  
Chihiro Taka ◽  
Stefan Chromik ◽  
Rudolf Durny
Keyword(s):  
Thin Films ◽  
Magnetic Fields ◽  
Si Substrate ◽  
Critical Fields ◽  
Mgb2 Thin Films ◽  
Parallel Magnetic Fields

A novel technique for synthesizing MgB2thin films with high upper critical fields

2008 ◽  
Vol 21 (8) ◽  
pp. 085009 ◽  
Author(s):  
Y Shen ◽  
R Gandikota ◽  
R K Singh ◽  
F L Hunte ◽  
J Jaroszynski ◽  
...  
Keyword(s):  
Critical Fields ◽  
Novel Technique ◽  
Upper Critical Fields

Anisotropic Upper Critical Fields of Highly Oriented Bi-Sr-Ca-Cu-O Thin Films Prepared by Coevaporation

1988 ◽  
Vol 27 (Part 2, No. 6) ◽  
pp. L1094-L1096 ◽  
Author(s):  
Tsutomu Yoshitake ◽  
Tetsuro Satoh ◽  
Yoshimi Kubo ◽  
Takashi Manako ◽  
Hitoshi Igarashi
Keyword(s):  
Thin Films ◽  
Critical Fields ◽  
Upper Critical Fields

Structure and Functional Properties of Bulk MgB2 Superconductors Synthesized and Sintered under Pressure

2014 ◽  
Vol 792 ◽  
pp. 21-26 ◽  
Author(s):  
Tatiana Prikhna ◽  
Michael Eisterer ◽  
Wolfgang Gawalek ◽  
Athanasios G. Mamalis ◽  
Artem Kozyrev ◽  
...  
Keyword(s):  
Critical Current ◽  
Material Structure ◽  
Bulk Materials ◽  
Critical Fields ◽  
Current Densities ◽  
Upper Critical Fields ◽  
Irreversibility Fields ◽  
Grain Boundary Pinning ◽  
Effect Of Oxygen ◽  
Oxygen Impurities

The high pressure (50 MPa - 2 GPa) – high temperature synthesized MgB2 bulk materials are characterized by nearly theoretical density (1-2% porosity), 80-98% connectivity, extremely high critical current densities (e.g. at 20 K, in 0–1 T jc=1.3–1.0 MA·cm-2 (with 10% SiC) and jc= 0.92 – 0.73 MA·cm-2 (without doping)), large irreversibility fields (Birr(18.4 K) =15 T and Birr (0 K) = 32.5 T) and high upper critical fields (Bc2 (22 K) =15 T and Bc2(0 K) ~ 42.1 T). The transformation of grain boundary pinning to point pinning in MgB2-based materials with increasing manufacturing temperature (from 800 to 1050 oC) under pressures from 0.1 to 2 GPa correlates well with an increase in critical current density in low external magnetic fields caused by the redistribution of boron and the oxygen impurities in the material structure. As the manufacturing temperature increases, the discontinuous oxygen enriched layers transform into distinct Mg-B-O inclusions and the size and amount of inclusions of higher magnesium borides MgBX (X>4) are reduced. The effect of oxygen and boron redistribution can be enhanced by Ti or SiC additions.

Upper critical field of κ-(ET)2Cu[N(CN)2]Br under parallel magnetic fields

2001 ◽  
Vol 294-295 ◽  
pp. 427-430 ◽  
Author(s):  
Y. Shimojo ◽  
A.E. Kovalev ◽  
S. Kamiya ◽  
E. Ohmichi ◽  
T. Ishiguro ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Critical Field ◽  
Upper Critical Field ◽  
Parallel Magnetic Fields

Asymmetric critical currents of Nb and YBCO thin films for the polarity of the transport current in parallel magnetic fields

1994 ◽  
Vol 235-240 ◽  
pp. 3095-3096
Author(s):  
F. Ichikawa ◽  
T. Nishizaki ◽  
K. Yamabe ◽  
Y. Yamasaki ◽  
T. Fukami ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Fields ◽  
Critical Currents ◽  
Transport Current ◽  
Ybco Thin Films ◽  
Parallel Magnetic Fields
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