Low magnetic flux noise observed in laser-deposited in situ films of YB2Cu3Oy and implications for high- Tc SQUIDs

Nature ◽  
1989 ◽  
Vol 341 (6244) ◽  
pp. 723-725 ◽  
Author(s):  
M. J. Ferrari ◽  
Mark Johnson ◽  
Frederick C. Wellstood ◽  
John Clarke ◽  
A. Inam ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
High Tc ◽  
Flux Noise

Magnetic Flux Noise and Pinning in Low and High-Tc Superconducting Films

1999 ◽  
pp. 307-320
Author(s):  
I. A. Khrebtov ◽  
V. N. Leonov ◽  
A. D. Tkachenko ◽  
P. V. Bratukhin ◽  
A. A. Ivanov ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Superconducting Films ◽  
High Tc ◽  
Flux Noise

In-situ laser preparation of high-Tc superconducting thin film at 450°-550° C

1991 ◽  
Author(s):  
Chengwu An ◽  
Yongchang Fan ◽  
Dongsheng Lu ◽  
Zaiguang Li
Keyword(s):  
Thin Film ◽  
Superconducting Thin Film ◽  
High Tc

scholarly journals Flux Mapping and Magnetic Behavior of Grain Boundaries in Nd-Fe-B Magnets

1999 ◽  
Vol 589 ◽  
Author(s):  
V.V. Volkov ◽  
Yimei Zhu
Keyword(s):  
Magnetic Flux ◽  
Grain Boundaries ◽  
Domain Walls ◽  
Quantitative Description ◽  
Magnetic Behavior ◽  
Local Variation ◽  
Smooth Transition ◽  
Lorentz Microscopy ◽  
Hard Magnets

AbstractAdvanced Fresnel- & Foucault-Lorentz microscopy were applied to analyze magnetic behavior of the grain boundaries in Nd-Fe-B hard magnets. In-situ TEM magnetizing experiments combined with these imaging methods revealed the process of magnetization reversal in polycrystalline sintered and die-upset Nd-Fe-B under various magnetic fields. Fine details of magnetic flux distribution, derived from the magnetic interferograms created by phase-coherent Foucault imaging, provide a quantitative description of the local variation of magnetic flux. Our study suggests that the grain boundaries play an important multi-functional role in the reversal of magnetization, by acting as (a) pinning centers of domain walls, (b) centers of nucleation of reversal domains, and (c) sinks or sources for migrating magnetostatic charges and/or dipoles. They also ensure a smooth transition for irreversible remagnetization in polycrystalline samples.

Features of vortex pinning and magnetic flux creep in epitaxial thin films of high-Tc superconductor YBa2Cu3O7−δ near the critical temperature

2006 ◽  
Vol 32 (8) ◽  
pp. 832-837 ◽  
Author(s):  
M. P. Chornomorets ◽  
D. G. Kovalchuk ◽  
S. M. Ryabchenko ◽  
A. V. Semenov ◽  
E. A. Pashitskii
Keyword(s):  
Thin Films ◽  
Critical Temperature ◽  
Magnetic Flux ◽  
Vortex Pinning ◽  
Flux Creep ◽  
Epitaxial Thin Films ◽  
High Tc ◽  
High Tc Superconductor

Measurement of the static error rate of a storage cell for single magnetic flux quanta, fabricated from high-Tc multilayer bicrystal Josephson junctions

1998 ◽  
Vol 72 (12) ◽  
pp. 1513-1515 ◽  
Author(s):  
Y. Chong ◽  
B. Ruck ◽  
R. Dittmann ◽  
C. Horstmann ◽  
A. Engelhardt ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Error Rate ◽  
Josephson Junctions ◽  
Static Error ◽  
High Tc ◽  
Storage Cell

On detection of the Fermi edge in in situ grown thin films of high-Tc oxides

2001 ◽  
Vol 364-365 ◽  
pp. 538-540 ◽  
Author(s):  
M Abrecht ◽  
D Ariosa ◽  
S.A Saleh ◽  
S Rast ◽  
G Margaritondo ◽  
...  
Keyword(s):  
Thin Films ◽  
High Tc ◽  
Fermi Edge

Direct Observation of Magnetic Flux Behavior in High-Tc Oxide Superconductors

1992 ◽  
Vol 7 (7) ◽  
pp. 525-532
Author(s):  
S. Gotoh ◽  
N. Koshizuka ◽  
M. Yoshida ◽  
H. Fujimoto ◽  
M. Murakami ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Direct Observation ◽  
Oxide Superconductors ◽  
High Tc
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