scholarly journals Investigation of superconducting gap structure in TbFeAsO0.9F0.1using point contact Andreev reflection

2009 ◽  
Vol 11 (2) ◽  
pp. 025015 ◽  
Author(s):  
K A Yates ◽  
K Morrison ◽  
J A Rodgers ◽  
G B S Penny ◽  
J-W G Bos ◽  
...  
Keyword(s):  
Andreev Reflection ◽  
Point Contact ◽  
Superconducting Gap ◽  
Gap Structure

scholarly journals Point-contact Andreev reflection tunneling spectroscopic (PCARTS) study of the superconducting gap structure in LuNi2B2C

2009 ◽  
Vol 150 (5) ◽  
pp. 052143 ◽  
Author(s):  
Xin Lu ◽  
W K Park ◽  
Ki-Young Choi ◽  
Sung-Ik Lee ◽  
Sunmog Yeo ◽  
...  
Keyword(s):  
Andreev Reflection ◽  
Point Contact ◽  
Superconducting Gap ◽  
Gap Structure

Point-contact Andreev reflection spectroscopic study of the superconducting gap structure in LuNi2B2C

2008 ◽  
Vol 403 (5-9) ◽  
pp. 1098-1100 ◽  
Author(s):  
Xin Lu ◽  
W.K. Park ◽  
Jung-Dae Kim ◽  
Sunmog Yeo ◽  
Sung-Ik Lee ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Andreev Reflection ◽  
Point Contact ◽  
Superconducting Gap ◽  
Gap Structure

scholarly journals Doping dependence of the superconducting gap by Andreev reflection in Au/La2−xSrxCuO4 point-contact junctions

2002 ◽  
Vol 63 (12) ◽  
pp. 2369-2373 ◽  
Author(s):  
R.S. Gonnelli ◽  
A. Calzolari ◽  
D. Daghero ◽  
L. Natale ◽  
G.A. Ummarino ◽  
...  
Keyword(s):  
Andreev Reflection ◽  
Point Contact ◽  
Superconducting Gap ◽  
Doping Dependence

scholarly journals Superconducting gap structure of FeSe

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Lin Jiao ◽  
Chien-Lung Huang ◽  
Sahana Rößler ◽  
Cevriye Koz ◽  
Ulrich K. Rößler ◽  
...  
Keyword(s):  
Superconducting Gap ◽  
Gap Structure

Point Contact Andreev Reflection Measurement of the Spin Polarization of Ferromagnetic Alloy NiFeSb

2002 ◽  
Vol 19 (8) ◽  
pp. 1181-1183 ◽  
Author(s):  
Li Zhuang-Zhi ◽  
Tao Hong-Jie ◽  
Wen Hai-Hu ◽  
Zhang Ming ◽  
Liu Zhu-Hong ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Andreev Reflection ◽  
Point Contact ◽  
Ferromagnetic Alloy ◽  
Reflection Measurement

scholarly journals Probing the superconducting gap structure in the noncentrosymmetric topological superconductor ZrRuAs

2021 ◽  
Vol 103 (14) ◽  
Author(s):  
Debarchan Das ◽  
D. T. Adroja ◽  
M. R. Lees ◽  
R. W. Taylor ◽  
Z. S. Bishnoi ◽  
...  
Keyword(s):  
Superconducting Gap ◽  
Topological Superconductor ◽  
Gap Structure

scholarly journals POINT-CONTACT SPECTROSCOPY OF MAGNESIUM DIBORIDE WITH DIFFERENT COUNTER-ELECTRODES

2003 ◽  
Vol 17 (27n28) ◽  
pp. 1405-1416
Author(s):  
A. I. D'YACHENKO ◽  
V. YU. TARENKOV ◽  
M. A. BELOGOLOVSKII ◽  
V. N. VARYUKHIN ◽  
A. V. ABAL'OSHEV ◽  
...  
Keyword(s):  
Andreev Reflection ◽  
Magnesium Diboride ◽  
Three Dimensional ◽  
Point Contact ◽  
Band Model ◽  
Counter Electrodes ◽  
Break Junctions ◽  
Point Contact Spectroscopy ◽  
Dc Current ◽  
Two Band Model

We report on tunneling and Andreev-reflection conductance spectra of 39 K superconducting magnesium diboride, obtained with Pb and Au counter-electrodes. Two distinct steps at close to 2.7 and 7.1 meV appear in a low-resistance metallic-type Au–MgB 2 junction characteristic, whereas a tunneling-like spectrum measured for the same junction, annealed by the application of DC current, exhibits only a rounded contribution of the larger gap. Junctions with a superconducting lead counter-electrode pressed into a bulk MgB 2 sample reveal two conductance peaks that are interpreted as the result of the formation of a highly-transmitting break junctions inside the magnesium diboride ceramic. Our results strongly support the two-band model with two different gap values on quasi-two-dimensional σ (7.1 meV) and three-dimensional π (2.7 meV) Fermi surface sheets of MgB 2.

scholarly journals Transport spin polarization inSrRuO3measured through point-contact Andreev reflection

2003 ◽  
Vol 67 (2) ◽  
Author(s):  
P. Raychaudhuri ◽  
A. P. Mackenzie ◽  
J. W. Reiner ◽  
M. R. Beasley
Keyword(s):  
Spin Polarization ◽  
Andreev Reflection ◽  
Point Contact

PHOTON-ASSISTED TRANSPORT CHARACTERISTICS THROUGH QUANTUM DOT COUPLED TO SUPERCONDUCTING RESERVOIRS

NANO ◽  
2006 ◽  
Vol 01 (03) ◽  
pp. 259-264 ◽  
Author(s):  
A. S. ATALLAH ◽  
A. H. PHILLIPS ◽  
A. F. AMIN ◽  
M. A. SEMARY
Keyword(s):  
Magnetic Field ◽  
Numerical Calculation ◽  
Quantum Dot ◽  
Resonant Tunneling ◽  
Andreev Reflection ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Time Varying ◽  
Quantum Point ◽  
Tunneling Behavior

The influence of time-varying fields on the transport through a mesoscopic device has been investigated. This mesoscopic device is modeled as a quantum dot coupled to superconducting reservoirs via quantum point contact. The effect of a magnetic field and the Andreev reflection process were taken into account. The conductance was deduced by using Landuaer–Buttiker equation. A numerical calculation has been performed that shows a resonant tunneling behavior. Such investigation is important for fabricating photoelectron mesoscopic devices.

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