Flux Jumps in Nb3Sn Superconducting Ribbon

A magneto-optical study of the flux jumping behavior of samples of vapor deposited Nb3Sn ribbons has been undertaken. Observations have confirmed that the magnetic stability of the superconductor is greatly enhanced by the addition of normal metal claddings; this is demonstrated with tracings taken from photographs which show directly the magnetic flux patterns in the samples.

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Quasi-periodic magnetic flux jumps in the superconducting state of Ba0.5K0.5Fe1.9M0.1As2 (M=Fe, Co, Ni, Cu, and Zn)

Physica C Superconductivity ◽

10.1016/j.physc.2013.09.005 ◽

2013 ◽

Vol 495 ◽

pp. 192-197 ◽

Cited By ~ 2

Author(s):

J. Li ◽

Y. Guo ◽

S. Zhang ◽

Y. Tsujimoto ◽

X. Wang ◽

...

Keyword(s):

Magnetic Flux ◽

Superconducting State ◽

Flux Jumps ◽

Cu And Zn

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Magnetic Flux Trapping and Flux Jumps in Pulsed Field Magnetizing Processes in REBCO and Mg-B Bulk Magnets

Journal of Physics Conference Series ◽

10.1088/1742-6596/1590/1/012025 ◽

2020 ◽

Vol 1590 ◽

pp. 012025

Author(s):

T Oka ◽

A Takeda ◽

H Oki ◽

K Yamanaka ◽

L Dadiel ◽

...

Keyword(s):

Magnetic Flux ◽

Pulsed Field ◽

Flux Trapping ◽

Flux Jumps ◽

Magnetic Flux Trapping

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Picosecond Studies of Nonequilibrium Flux Dynamics in Superconductors

MRS Proceedings ◽

10.1557/proc-290-323 ◽

1992 ◽

Vol 290 ◽

Author(s):

M. R. Freeman

Keyword(s):

Magnetic Field ◽

Magnetic Flux ◽

Intermediate State ◽

Nonequilibrium State ◽

Normal Metal ◽

Fast Time ◽

Type I ◽

Superconducting Transition ◽

Local Motion ◽

Flux Dynamics

AbstractA fast time-domain magneto-optical technique is used to explore magnetic flux dynamics in the optically driven nonequilibrium state of Type I superconducting Pb films. It is found that the effective penetration of flux through the nonequilibrium intermediate state can be dramatically faster than through the normal metal. The system is probed through the application of rapid transient magnetic field pulses. Above the superconducting transition temperature, a direct measure of the diffusion coefficient of the magnetic field in the normal metal is obtained, on a time scale where the inhomogeneous spatial distribution of scattering sites is relevant. In the nonequilibrium superconductor the observations are dominated by coupling of the field transients to local motion of magnetic flux threading the normal domains. Studies as a function of how far the system is driven from equilibrium, and of the effect of a static applied magnetic field, indicate that the observations reflect the dynamics of normal/superconducting interfaces, and are strongly dependent on the microscopic arrangement of the intermediate state. By contrasting the response of pure Pb films to that of Pb1−xInx alloys, a comparison to Type II superconductivity is made.

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Magnetic flux jumps in texturedBi2Sr2CaCu2O8+δ

Physical Review B ◽

10.1103/physrevb.67.024518 ◽

2003 ◽

Vol 67 (2) ◽

Cited By ~ 27

Author(s):

A. Nabiałek ◽

M. Niewczas ◽

H. Dabkowska ◽

A. Dabkowski ◽

J. P. Castellan ◽

...

Keyword(s):

Magnetic Flux ◽

Flux Jumps

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Magnetic-flux quantization and electron localization in normal metal cylinders

Physica B+C ◽

10.1016/s0378-4363(84)80074-1 ◽

1984 ◽

Vol 127 (1-3) ◽

pp. 450-454

Author(s):

M. Gijs ◽

C. Van Haesendonck ◽

Y. Bruynseraede

Keyword(s):

Magnetic Flux ◽

Normal Metal ◽

Electron Localization ◽

Flux Quantization

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Persistent Currents in a Normal Metallic Loop Connected with A Normal Metal and a Superconductor

Modern Physics Letters B ◽

10.1142/s021798499800024x ◽

1998 ◽

Vol 12 (05) ◽

pp. 181-191

Author(s):

Zhiliang Cao ◽

Yuannan Xie ◽

Rushan Han

Keyword(s):

Magnetic Flux ◽

Andreev Reflection ◽

Normal Metal ◽

Flux Quantum ◽

Persistent Currents ◽

Electronic Part

We have studied the effect of the Andreev reflection on the persistent currents in a normal metallic loop connected with a normal metal and a superconductor. It consist of two parts, one contributed by electrons and one by holes. They are periodic with a period equal to a single flux quantum, ϕ0, versus the threading magnetic flux and π versus the length of the lead bridging between the loop and the superconductor. They have sharp peaks at the gap edge. Both the sum of persistent currents and the electronic part increase to a same constant, but the hole part decreases to zero with the barrier strength rising to infinity.

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