scholarly journals On the origin of the sharp, low-field pinning force peaks in MgB2 superconductors

AIP Advances ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 015035 ◽  
Author(s):  
Michael R. Koblischka ◽  
Alex Wiederhold ◽  
Anjela Koblischka-Veneva ◽  
Crosby Chang ◽  
Kévin Berger ◽  
...  
Keyword(s):  
Pinning Force ◽  
Low Field ◽  
Mgb2 Superconductors

Effect of Pulsed Magnetic Field Processing on MgB2 Superconductors

2007 ◽  
Vol 546-549 ◽  
pp. 2063-2066 ◽  
Author(s):  
W.X. Li ◽  
Ying Li ◽  
M.Y. Zhu ◽  
R.H. Chen ◽  
H.M. Jin ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Pulsed Magnetic Field ◽  
Pinning Force ◽  
Critical Current Density Jc ◽  
Mgb2 Superconductors ◽  
Doped Mgb2 ◽  
Flux Pinning Force

Pulsed magnetic field was first employed in the study on MgB2 superconductors. Superconductivity properties and microstructures of Zn and SiC doped MgB2 were discussed in this paper. The superconductors showed different superconductivities after magnetic sintering. Critical current density and flux pinning force were relevant to the dopants properties in MgB2. Grains in the pulsed magnetic processed MgB2 matrix were smaller than those in the normal processed one. The refinement microstructures have caused the critical current density (Jc) anisotropy in both the Zn and SiC doped MgB2.

scholarly journals CHARACTERISTICS OF PINNING FORCE IN LOW FIELD FOR Tl2Ba2Ca2Cu3Oy SUPERCONDUCTOR

1990 ◽  
Vol 39 (12) ◽  
pp. 1999
Author(s):  
DING SHI-YING ◽  
SHI ZHI-XIANG ◽  
TAN JIA-LIE ◽  
YU ZHENG ◽  
SHI KE-XIN ◽  
...  
Keyword(s):  
Pinning Force ◽  
Low Field

LOW FIELD E.S.R, IN THE SUPERCONDUCTING RELAXED STATE OF (TMTSF)2C104AT LOW TEMPERATURE

1983 ◽  
Vol 44 (C3) ◽  
pp. C3-1033-C3-1036 ◽  
Author(s):  
J. M. Delrieu ◽  
N. S. Sullivan ◽  
Bechgaard
Keyword(s):  
Low Temperature ◽  
Low Field

Fluctuation Measurement Across the Broad Range of the Low-field Side Edge Plasmas in the TST-2 Spherical Tokamak

2012 ◽  
Vol 132 (7) ◽  
pp. 499-504
Author(s):  
Masateru Sonehara ◽  
Yoshihiko Nagashima ◽  
Yuichi Takase ◽  
Akira Ejiri ◽  
Takashi Yamaguchi ◽  
...  
Keyword(s):  
Spherical Tokamak ◽  
Side Edge ◽  
Low Field ◽  
Edge Plasmas ◽  
Fluctuation Measurement

Improved Contrast in Ultra-Low-Field MRI with Time-Dependent Bipolar Prepolarizing Fields: Theory and NMR Demonstrations

2013 ◽  
Vol 20 (3) ◽  
pp. 327-336 ◽  
Author(s):  
Jaakko O. Nieminen ◽  
Jens Voigt ◽  
Stefan Hartwig ◽  
Hans Jürgen Scheer ◽  
Martin Burghoff ◽  
...  
Keyword(s):  
Field Strength ◽  
Time Course ◽  
Signal Strength ◽  
Relaxation Rates ◽  
Resonance Imaging ◽  
New Approach ◽  
Spin Lattice ◽  
Low Field ◽  
Low Field Mri ◽  
Magnetic Resonance Imaging Mri

Abstract The spin-lattice (T1) relaxation rates of materials depend on the strength of the external magnetic field in which the relaxation occurs. This T1 dispersion has been suggested to offer a means to discriminate between healthy and cancerous tissue by performing magnetic resonance imaging (MRI) at low magnetic fields. In prepolarized ultra-low-field (ULF) MRI, spin precession is detected in fields of the order of 10-100 μT. To increase the signal strength, the sample is first magnetized with a relatively strong polarizing field. Typically, the polarizing field is kept constant during the polarization period. However, in ULF MRI, the polarizing-field strength can be easily varied to produce a desired time course. This paper describes how a novel variation of the polarizing-field strength and duration can optimize the contrast between two types of tissue having different T1 relaxation dispersions. In addition, NMR experiments showing that the principle works in practice are presented. The described procedure may become a key component for a promising new approach of MRI at ultra-low fields

ROUND PERMALLOY 80

Alloy Digest ◽  
1976 ◽  
Vol 25 (1) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Magnetic Core ◽  
Molybdenum Alloy ◽  
Nickel Iron ◽  
Low Field ◽  
Core Losses ◽  
Very High

Abstract Round Permalloy 80 is an 80% nickel-iron-molybdenum alloy that provides very high initial and maximum magnetic permeabilities and minimal core losses at low field strengths. This vacuum-melted product also offers the advantages of small size and weight in magnetic core and shielding materials for numerous applications. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-223. Producer or source: Spang Industries Inc..

Giant Magnetocaloric Effect of Tmcosi Compound Under Low Field Change

2020 ◽  
Author(s):  
Jia-Wang Xu ◽  
Xinqi Zheng ◽  
Shu-Xian Yang ◽  
L. Xi ◽  
J. Y. Zhang ◽  
...  
Keyword(s):  
Magnetocaloric Effect ◽  
Field Change ◽  
Low Field ◽  
Giant Magnetocaloric Effect
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