scholarly journals Josephson effect and Andreev reflection in Ba1–xNaxFe2As2 (x = 0.25 and 0.35) point contacts

2014 ◽  
Vol 40 (10) ◽  
pp. 919-924 ◽  
Author(s):  
V. V. Fisun ◽  
O. P. Balkashin ◽  
O. E. Kvitnitskaya ◽  
I. A. Korovkin ◽  
N. V. Gamayunova ◽  
...  
Keyword(s):  
Josephson Effect ◽  
Andreev Reflection ◽  
Point Contacts

scholarly journals Revealing the interference effect of Majorana fermions in a topological Josephson junction

2018 ◽  
Vol 9 ◽  
pp. 520-529 ◽  
Author(s):  
Jie Liu ◽  
Tiantian Yu ◽  
Juntao Song
Keyword(s):  
Josephson Junction ◽  
Interference Effect ◽  
Josephson Effect ◽  
Andreev Reflection ◽  
Local Density ◽  
Localized States ◽  
Majorana Fermions ◽  
Local Density Of States ◽  
Single Side ◽  
Period Oscillation

We study theoretically the local density of states (DOS) in a topological Josephson junction. We show that the well-known 4π Josephson effect originates from the interference effect between two Majorana fermions (MFs) that are localized at the Josephson junction. In addition, the DOS for electrons (holes) shows the 4π interference information along each parity conserved energy spectrum. The DOS displays a 2π period oscillation when two trivial states interfere with each other. This means that the DOS information may be used to distinguish the MFs from trivial localized states. We suggest that the interference effect and the DOS can be detected by using two STM leads or two normal leads. A single side lead can only detect the Andreev reflection tunneling process in the junction, which cannot reveal information about the interference effect in general. However, using two side leads, we can reveal information about the interference effect of the MFs as well as the DOS by combining Andreev reflection with the electron transmission process.

Frequency Dependence of the ac Josephson Effect in Nb Point Contacts in the Submillimeter-Wave Region

1981 ◽  
Vol 20 (4) ◽  
pp. L257-L260 ◽  
Author(s):  
Takashi Noguchi ◽  
Seizo Morita ◽  
Syozo Imai ◽  
Yosihisa Takeuti ◽  
Nobuo Mikoshiba
Keyword(s):  
Frequency Dependence ◽  
Josephson Effect ◽  
Submillimeter Wave ◽  
Point Contacts ◽  
Wave Region

Far-infrared frequency dependence of the ac Josephson effect in niobium point contacts

1978 ◽  
Vol 18 (7) ◽  
pp. 3282-3292 ◽  
Author(s):  
D. A. Weitz ◽  
W. J. Skocpol ◽  
M. Tinkham
Keyword(s):  
Frequency Dependence ◽  
Josephson Effect ◽  
Far Infrared ◽  
Point Contacts

Spin polarization of charge carriers and Andreev reflection in (LaCa)MnO/superconductor point contacts

2006 ◽  
Vol 48 (3) ◽  
pp. 432-440 ◽  
Author(s):  
A. I. D’yachenko ◽  
V. A. D’yachenko ◽  
V. Yu. Tarenkov ◽  
V. N. Krivoruchko
Keyword(s):  
Spin Polarization ◽  
Andreev Reflection ◽  
Charge Carriers ◽  
Point Contacts

Effect of the Shunt Capacitance on the ac Josephson Effect in Nb Point Contacts

1980 ◽  
Vol 19 (8) ◽  
pp. L469-L472
Author(s):  
Takashi Noguchi ◽  
Keishi Ohsawa ◽  
Seizo Morita ◽  
Nobuo Mikoshiba
Keyword(s):  
Josephson Effect ◽  
Point Contacts

Two superconducting states of HoNi 2 B 2 C as seen by Andreev reflection in point-contacts

1996 ◽  
Vol 33 (6) ◽  
pp. 483-488 ◽  
Author(s):  
L. F Rybaltchenko ◽  
I. K Yanson ◽  
A. G. M Jansen ◽  
P Mandal ◽  
P Wyder ◽  
...  
Keyword(s):  
Andreev Reflection ◽  
Point Contacts
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