Thermodynamics of Type‐I and Type‐II Superconductors

1969 ◽  
Vol 40 (13) ◽  
pp. 5148-5160 ◽  
Author(s):  
R. R. Hake
Keyword(s):  
Type I ◽  
Type Ii ◽  
Type Ii Superconductors

Short wavelength fluctuation effects on the magnetization in type I and low-  type II superconductors

2003 ◽  
Vol 15 (19) ◽  
pp. 3283-3298 ◽  
Author(s):  
J Mosqueira ◽  
C Carballeira ◽  
S R Curr s ◽  
M T Gonz lez ◽  
M V Ramallo ◽  
...  
Keyword(s):  
Short Wavelength ◽  
Type I ◽  
Type Ii ◽  
Type Ii Superconductors ◽  
Fluctuation Effects

Nuclear Magnetic Resonance Studies of Type II Superconductors

1980 ◽  
Vol 3 ◽  
Author(s):  
F. Y. Fradin
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Upper Critical Field ◽  
Bcs Theory ◽  
Simple Type ◽  
Type I ◽  
Type Ii ◽  
Superconducting Properties ◽  
Type Ii Superconductors ◽  
Nuclear Magnetic

ABSTRACTThe results of nuclear magnetic resonance (nmr) experiments on simple type–I superconductors were among the first and most important verifications of the BCS theory of superconductivity. In this paper, the application of nmr techniques to the study of superconducting properties in the more complex type–II superconductors will be reviewed. The discussion will include the effect of material parameters (e.g., degree of long range crystalline order, density of states at the Fermi level, effects of magnetic dopants) on the superconducting properties, including size of the superconducting gap, vortex structure, upper–critical field Hc2, and variations in Tc. Emphasis will be placed on high Tc, high Hc2 materials, i.e., A15 compounds and the ternary Chevrel phases.

MAGNETIC PROPERTIES OF A SUPERCONDUCTOR WITH A TRICRITICAL POINT (UPt3)

1993 ◽  
Vol 07 (01n03) ◽  
pp. 78-81
Author(s):  
I. A. FOMIN
Keyword(s):  
Magnetic Properties ◽  
Finite Field ◽  
Tricritical Point ◽  
Normal Pressure ◽  
Bcs Theory ◽  
Type I ◽  
Type Ii ◽  
Type Ii Superconductors ◽  
First Order ◽  
Usual Behavior

Available experimental data indicate the existence of a tricritical point (tcp) on the line of transition of UPt3 into the superconducting state in the temperature-pressure plane. In particular, at normal pressure the transition has to be of the first order. The analysis of a phase diagram of a superconductor with the tcp in the temperature-magnetic field coordinates is presented here. The diagram does not conform either with the usual behavior of type I nor type II superconductors. The lines Hcm(T) and Hc2(T) intersect at a finite field. The line Hc1(T) branches from Hcm(T) at a finite field too. This diagram can be brought into agreement with that observed for UPt3. Both the existence of a tcp and the related magnetic properties are not accounted for by the weak coupling BCS theory.

Nucleation of vortices with a temperature and time-dependent Ginzburg–Landau model of superconductivity

2003 ◽  
Vol 14 (1) ◽  
pp. 111-127 ◽  
Author(s):  
E. COSKUN ◽  
Z. CAKIR ◽  
P. TAKAC
Keyword(s):  
Numerical Experiments ◽  
Time Dependent ◽  
Type I ◽  
Type Ii ◽  
Meissner State ◽  
Temperature Dependent ◽  
Ginzburg Landau ◽  
Landau Model ◽  
Type Ii Superconductors ◽  
Temperature Parameter

The standard scales that are used to non-dimensionalize the temperature- and time-dependent Ginzburg–Landau (TTDGL) model developed by Schmid [27], eliminate temperature- dependent parameters, and thus do not allow for superconducting phenomena due to variations in temperature. In this study, a set of new scales is presented to non-dimensionalize the TTDGL model so that the resulting dimensionless system depends upon a temperature parameter as well. Moreover, some properties of solutions to TTDGL system as a function of temperature are explored. Numerical experiments illustrating the temperature-dependency of vortex nucleation in type-II superconductors as well as the transition to the Meissner state in type-I superconductors are presented.

Critical rf Magnetic Fields for Some Type-I and Type-II Superconductors

1977 ◽  
Vol 39 (13) ◽  
pp. 826-829 ◽  
Author(s):  
T. Yogi ◽  
G. J. Dick ◽  
J. E. Mercereau
Keyword(s):  
Magnetic Fields ◽  
Type I ◽  
Type Ii ◽  
Type Ii Superconductors

scholarly journals Bernoulli potential in type-I and weak type-II superconductors. III. Electrostatic potential above the vortex lattice

2005 ◽  
Vol 71 (2) ◽  
Author(s):  
Pavel Lipavský ◽  
Klaus Morawetz ◽  
Jan Koláček ◽  
Jiří J. Mareš ◽  
Ernst Helmut Brandt ◽  
...  
Keyword(s):  
Electrostatic Potential ◽  
Vortex Lattice ◽  
Weak Type ◽  
Type I ◽  
Type Ii ◽  
Type Ii Superconductors

scholarly journals Bernoulli potential in type-I and weak type-II superconductors: II. Surface dipole

2004 ◽  
Vol 70 (10) ◽  
Author(s):  
P. Lipavský ◽  
K. Morawetz ◽  
J. Koláček ◽  
J. J. Mareš ◽  
E. H. Brandt ◽  
...  
Keyword(s):  
Weak Type ◽  
Type I ◽  
Type Ii ◽  
Type Ii Superconductors ◽  
Surface Dipole
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