scholarly journals Application of Bulk High-temperature Superconductor to Insertion Device for Synchrotron Radiation

2011 ◽  
Vol 46 (3) ◽  
pp. 118-124 ◽  
Author(s):  
Toshiteru KII ◽  
Ryota KINJO
Keyword(s):  
High Temperature ◽  
Synchrotron Radiation ◽  
High Temperature Superconductor ◽  
Insertion Device

Compton Spectroscopy and Chemical Bonding

2001 ◽  
Vol 215 (10) ◽  
Author(s):  
A. Shukla ◽  
B. Barbiellini ◽  
T. Buslaps ◽  
P. Suortti
Keyword(s):  
High Temperature ◽  
Synchrotron Radiation ◽  
Chemical Bonding ◽  
Molecular Crystal ◽  
High Temperature Superconductor ◽  
Condensed Matter ◽  
Condensed Matter Physics ◽  
Compton Profile ◽  
Computational Tools ◽  
Practical Applications

In this article we show with the help of two examples how Compton spectroscopy may be used to study the effect of chemical bonding in materials as diverse as a molecular crystal and a high temperature superconductor. Compton spectroscopy has a long history as an investigative method in condensed matter physics and in fact the realisation that the Compton profile is sensitive to the effects of chemical bonding dates back at least fifty years. In the seventies, through the efforts of Weyrich [1] and others [2,3], practical applications of this realisation were first achieved. We argue that such studies are more and more relevant thanks to the availability of synchrotron radiation and efficient computational tools.

Modeling the responses of a high-temperature superconductor bolometer for absolute measurements of synchrotron radiation

2007 ◽  
Vol 74 (7) ◽  
pp. 479
Author(s):  
I. A. Khrebtov ◽  
V. G. Malyarov ◽  
K. V. Ivanov ◽  
D. A. Khokhlov ◽  
A. D. Nikolenko ◽  
...  
Keyword(s):  
High Temperature ◽  
Synchrotron Radiation ◽  
High Temperature Superconductor ◽  
Absolute Measurements

Microwave cavity made from high temperature superconductor

1988 ◽  
Vol 24 (17) ◽  
pp. 1085 ◽  
Author(s):  
W.J. Radcliffe ◽  
J.C. Gallop ◽  
C.D. Langham ◽  
M. Gee ◽  
M. Stewart
Keyword(s):  
High Temperature ◽  
High Temperature Superconductor ◽  
Microwave Cavity

The activation energy U(T,B) in high temperature superconductor

2020 ◽  
Vol 92 (2) ◽  
pp. 20601
Author(s):  
Abdelaziz Labrag ◽  
Mustapha Bghour ◽  
Ahmed Abou El Hassan ◽  
Habiba El Hamidi ◽  
Ahmed Taoufik ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Activation Energy ◽  
Phase Diagram ◽  
High Temperature ◽  
Apparent Activation Energy ◽  
High Temperature Superconductor ◽  
Flux Flow ◽  
Resistivity Measurements ◽  
Vortex Phase ◽  
The Magnetic Field

It is reported in this paper on the thermally assisted flux flow in epitaxial YBa2Cu3O7-δ deposited by Laser ablation method on the SrTiO3 substrate. The resistivity measurements ρ (T, B) of the sample under various values of the magnetic field up to 14T in directions B∥ab-plane and B∥c-axis with a dc weak transport current density were investigated in order to determine the activation energy and then understand the vortex dynamic phenomena and therefore deduce the vortex phase diagram of this material. The apparent activation energy U0 (B) calculated using an Arrhenius relation. The measured results of the resistivity were then adjusted to the modified thermally assisted flux flow model in order to account for the temperature-field dependence of the activation energy U (T, B). The obtained values from the thermally assisted activation energy, exhibit a behavior similar to the one showed with the Arrhenius model, albeit larger than the apparent activation energy with ∼1.5 order on magnitude for both cases of the magnetic field directions. The vortex glass model was also used to obtain the vortex-glass transition temperature from the linear fitting of [d ln ρ/dT ] −1 plots. In the course of this work thanks to the resistivity measurements the upper critical magnetic field Hc2 (T), the irreversibility line Hirr (T) and the crossover field HCrossOver (T) were located. These three parameters allowed us to establish a phase diagram of the studied material where limits of each vortex phase are sketched in order to optimize its applicability as a practical high temperature superconductor used for diverse purposes.

Nonlocal optical response of a layered high-temperature superconductor slab

2018 ◽  
Vol 44 (12) ◽  
pp. 1272-1279 ◽  
Author(s):  
S. Cortés-López ◽  
F. Pérez-Rodríguez
Keyword(s):  
High Temperature ◽  
High Temperature Superconductor ◽  
Optical Response
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