scholarly journals Time-reversal invariant superconductivity of Sr2RuO4 revealed by Josephson effects

2019 ◽  
Vol 100 (9) ◽  
Author(s):  
Satoshi Kashiwaya ◽  
Kohta Saitoh ◽  
Hiromi Kashiwaya ◽  
Masao Koyanagi ◽  
Masatoshi Sato ◽  
...  
Keyword(s):  
Time Reversal ◽  
Josephson Effects

scholarly journals Influences of broken time-reversal symmetry on the dc Josephson effects ind-wave superconductors

1998 ◽  
Vol 58 (6) ◽  
pp. R2948-R2951 ◽  
Author(s):  
Yukio Tanaka ◽  
Satoshi Kashiwaya
Keyword(s):  
Time Reversal ◽  
Time Reversal Symmetry ◽  
Josephson Effects

scholarly journals Josephson detection of time-reversal symmetry broken superconductivity in SnTe nanowires

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
C. J. Trimble ◽  
M. T. Wei ◽  
N. F. Q. Yuan ◽  
S. S. Kalantre ◽  
P. Liu ◽  
...  
Keyword(s):  
Critical Current ◽  
Time Reversal ◽  
Josephson Effect ◽  
Domain Walls ◽  
Second Harmonic ◽  
Zero Magnetic Field ◽  
Weak Links ◽  
Current Phase ◽  
Time Reversal Symmetry ◽  
Josephson Effects

AbstractA Josephson junction (JJ) couples the supercurrent flowing between two weakly linked superconductors to the phase difference between them via a current-phase relation (CPR). While a sinusoidal CPR is expected for conventional junctions with insulating weak links, devices made from some exotic materials may give rise to unconventional CPRs and unusual Josephson effects. In this work, we present such a case: we investigate the proximity-induced superconductivity in SnTe nanowires by incorporating them as weak links in JJs and observe a deviation from the standard CPR. We report on indications of an unexpected breaking of time-reversal symmetry in these devices, detailing the unconventional characteristics that reveal this behavior. These include an asymmetric critical current in the DC Josephson effect, a prominent second harmonic in the AC Josephson effect, and a magnetic diffraction pattern with a minimum in critical current at zero magnetic field. The analysis examines how multiband effects and the experimentally visualized ferroelectric domain walls give rise to this behavior, giving insight into the Josephson effect in materials that possess ferroelectricity and/or multiband superconductivity.

scholarly journals Catalog of Andreev spectra and Josephson effects in structures with time-reversal-invariant topological superconductor wires

2019 ◽  
Vol 99 (8) ◽  
Author(s):  
Liliana Arrachea ◽  
Alberto Camjayi ◽  
Armando A. Aligia ◽  
Leonel Gruñeiro
Keyword(s):  
Time Reversal ◽  
Josephson Effects ◽  
Topological Superconductor ◽  
And Josephson Effects

scholarly journals Josephson effects in three-band superconductors with broken time-reversal symmetry

2014 ◽  
Vol 104 (16) ◽  
pp. 162602 ◽  
Author(s):  
Zhao Huang ◽  
Xiao Hu
Keyword(s):  
Time Reversal ◽  
Time Reversal Symmetry ◽  
Josephson Effects

scholarly journals Nambu-Goldstone-Leggett modes in multi-condensate superconductors

2015 ◽  
Vol 1 (1) ◽  
Author(s):  
Takashi Yanagisawa
Keyword(s):  
Time Reversal ◽  
Bound State ◽  
Josephson Effects ◽  
Multiple Phase ◽  
Two Component ◽  
Quantum Flux ◽  
Flux Vortices ◽  
Goldstone Modes ◽  
Interesting Analogy ◽  
Additional Phase

AbstractMulti-gap superconductors exhibit interesting properties. In an N-gap superconductor, we have in general U(1)N phase invariance. This multiple-phase invariance is partially or totally spontaneously broken in a superconductor. The Nambu-Goldstone modes, as well as Higgs modes, are important and will play an important role in multi-condensate superconductors. The additional phase invariance leads to a new quantum phase, with help of frustrated Josephson effects, such as the time-reversal symmetry breaking, the emergence of massless modes and fractionally quantized-flux vortices. There is a possibility that half-flux vortices exist in two-component superconductors in a magnetic field. The half-quantum flux vortex can be interpreted as a monopole, and two half-flux vortices form a bound state connected by a domain wall. There is an interesting analogy between quarks and fractionally quantized-flux vortices in superconductors.

Time Reversal in Lossy Material: An Assessment

PIERS Online ◽  
2006 ◽  
Vol 3 (8) ◽  
pp. 1259-1263
Author(s):  
Ian Scott ◽  
Ana Vukovic ◽  
Phillip Sewell
Keyword(s):  
Time Reversal ◽  
Lossy Material

Thermoacoustic imaging using time reversal

2007 ◽  
Author(s):  
Hubert Grün ◽  
Christian Hofer ◽  
Markus Haltmeier ◽  
Günther Paltauf ◽  
Peter Burgholzer
Keyword(s):  
Time Reversal ◽  
Thermoacoustic Imaging

Acoustic Time Reversal in the Shallow Ocean

2005 ◽  
Author(s):  
David R. Dowling
Keyword(s):  
Time Reversal

Time-Reversal Based Range Extension Technique for Ultra-Wideband (UWB) Sensors and Applications in Tactical Communications and Networking

2009 ◽  
Author(s):  
Robert C. Qui ◽  
Nan Guo ◽  
Yu Song ◽  
Peng Zhang ◽  
Zhen Hu
Keyword(s):  
Time Reversal ◽  
Range Extension ◽  
Ultra Wideband

Time-Reversal Based Range Extension Technique for Ultra-Wideband (UWB) Sensors and Applications in Tactical Communications and Networking

2009 ◽  
Author(s):  
Robert C. Qiu ◽  
Nan T. Guo ◽  
Yu Song ◽  
Peng P. Zhang ◽  
Zhen E. Hu
Keyword(s):  
Time Reversal ◽  
Range Extension ◽  
Ultra Wideband
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