Temperature dependence of the critical current of the superconducting microladder in zero magnetic field: Theory and experiment

1991 ◽  
Vol 43 (13) ◽  
pp. 10144-10150 ◽  
Author(s):  
H. J. Fink ◽  
O. Buisson ◽  
B. Pannetier
Keyword(s):  
Magnetic Field ◽  
Field Theory ◽  
Temperature Dependence ◽  
Critical Current ◽  
Zero Magnetic Field ◽  
Theory And Experiment

Magnetic Prehistory in the Heat Capacity of the Low-Temperature Superconductors

2015 ◽  
Vol 233-234 ◽  
pp. 741-744
Author(s):  
Sergey Mikhailovich Podgornykh
Keyword(s):  
Magnetic Field ◽  
Heat Capacity ◽  
External Magnetic Field ◽  
Low Temperature ◽  
Temperature Dependence ◽  
Zero Magnetic Field ◽  
Zero Field ◽  
Ring Specimen ◽  
Trapped Flux ◽  
The Magnetic Field

Effect of the magnetic prehistory on the temperature dependence of the heat capacity of the superconducting Pb, La, Sn. has been studied. As soon as the external magnetic field riches the valueHext=HCthe superconductivity is completely destroyed. The trapped flux was produced in the ring specimen after the magnetic field was turned off atT<TC. We observed a difference of the value of the heat capacity between zero field cooled (ZFC) and field cooled (FC) states in zero magnetic field for the ring specimen. It is found that the FC heat capacity is smaller than the heat capacity both in the normal and in superconducting states.

Measurements of Magnetic Field and Temperature Dependence of the Critical Current in Bi-2212 Superconducting Wires

2017 ◽  
Vol 27 (4) ◽  
pp. 1-3 ◽  
Author(s):  
Alessandro Leveratto ◽  
Vittoria Zunino ◽  
Ilaria Pallecchi ◽  
Valeria Braccini ◽  
Carlo Ferdeghini ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Temperature Dependence ◽  
Critical Current ◽  
Superconducting Wires

ZERO FIELD ENTANGLEMENT IN DIPOLAR COUPLING SPIN SYSTEM AT NEGATIVE TEMPERATURE

2013 ◽  
Vol 11 (05) ◽  
pp. 1350050 ◽  
Author(s):  
GREGORY B. FURMAN ◽  
VICTOR M. MEEROVICH ◽  
VLADIMIR L. SOKOLOVSKY
Keyword(s):  
Magnetic Field ◽  
Temperature Dependence ◽  
Spin System ◽  
Dipolar Coupling ◽  
Negative Temperature ◽  
Absolute Temperature ◽  
Zero Magnetic Field ◽  
Entangled States ◽  
Zero Field ◽  
Negative Temperatures

A dipolar coupled spin system can achieve internal thermodynamic equilibrium states at negative absolute temperature. We study analytically and numerically the temperature dependence of the concurrence in a dipolar coupled spin-1/2 system in both nonzero and zero fields and show that, at negative temperatures, entangled states can exist even in zero magnetic field.

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