scholarly journals Gate-tunable supercurrent and multiple Andreev reflections in a superconductor-topological insulator nanoribbon-superconductor hybrid device

2018 ◽  
Vol 112 (9) ◽  
pp. 093105 ◽  
Author(s):  
Luis A. Jauregui ◽  
Morteza Kayyalha ◽  
Aleksandr Kazakov ◽  
Ireneusz Miotkowski ◽  
Leonid P. Rokhinson ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Hybrid Device ◽  
Multiple Andreev Reflections

scholarly journals Investigations of proximity-induced superconductivity in the topological insulator Bi2Te3 by microRaman spectroscopy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
D. Kiphart ◽  
Y. Harkavyi ◽  
K. Balin ◽  
J. Szade ◽  
B. Mróz ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Charge Transport ◽  
Topological Insulator ◽  
Superconducting State ◽  
High Temperature Superconductor ◽  
Superconducting Gap ◽  
Pseudogap State ◽  
Hybrid Device ◽  
Higher Temperature ◽  
Microraman Spectroscopy

AbstractWe used the topological insulator (TI) Bi2Te3 and a high-temperature superconductor (HTSC) hybrid device for investigations of proximity-induced superconductivity (PS) in the TI. Application of the superconductor YBa2Cu3O7-δ (YBCO) enabled us to access higher temperature and energy scales for this phenomenon. The HTSC in the hybrid device exhibits emergence of a pseudogap state for T > Tc that converts into a superconducting state with a reduced gap for T < Tc. The conversion process has been reflected in Raman spectra collected from the TI. Complementary charge transport experiments revealed emergence of the proximity-induced superconducting gap in the TI and the reduced superconducting gap in the HTSC, but no signature of the pseudogap. This allowed us to conclude that Raman spectroscopy reveals formation of the pseudogap state but cannot distinguish the proximity-induced superconducting state in the TI from the superconducting state in the HTSC characterised by the reduced gap. Results of our experiments have shown that Raman spectroscopy is a complementary technique to classic charge transport experiments and is a powerful tool for investigation of the proximity-induced superconductivity in the Bi2Te3.

scholarly journals Multiple andreev reflections in topological insulator nanoribbons

2021 ◽  
Author(s):  
Rak-Hee Kim ◽  
Nam-Hee Kim ◽  
Bongkeon Kim ◽  
Yasen Hou ◽  
Dong Yu ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Multiple Andreev Reflections

Magnetic and Electronic Properties of Gd-Doped Topological Insulator Bi1.09Gd0.06Sb0.85Te3

2019 ◽  
Vol 129 (3) ◽  
pp. 404-412 ◽  
Author(s):  
S. O. Filnov ◽  
Yu. A. Surnin ◽  
A. V. Koroleva ◽  
I. I. Klimovskikh ◽  
D. A. Estyunin ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Topological Insulator

scholarly journals Anomalous Hall effect in a magnetically extended topological insulator heterostructure

2020 ◽  
Vol 4 (9) ◽  
Author(s):  
Nan Liu ◽  
Xuefan Niu ◽  
Yuxin Liu ◽  
Qinghua Zhang ◽  
Lin Gu ◽  
...  
Keyword(s):  
Hall Effect ◽  
Topological Insulator ◽  
Anomalous Hall Effect

scholarly journals The impact of metallic contacts on spin-polarized photocurrents in topological insulator Bi 2 Se 3 nanowires

2020 ◽  
Vol 117 (26) ◽  
pp. 262401
Author(s):  
N. Meyer ◽  
K. Geishendorf ◽  
J. Walowski ◽  
A. Thomas ◽  
M. Münzenberg
Keyword(s):  
Topological Insulator ◽  
Metallic Contacts ◽  
Spin Polarized ◽  
The Impact

scholarly journals Multiple Andreev reflections and Shapiro steps in a Ge-Si nanowire Josephson junction

2019 ◽  
Vol 3 (8) ◽  
Author(s):  
Joost Ridderbos ◽  
Matthias Brauns ◽  
Ang Li ◽  
Erik P. A. M. Bakkers ◽  
Alexander Brinkman ◽  
...  
Keyword(s):  
Josephson Junction ◽  
Shapiro Steps ◽  
Si Nanowire ◽  
Multiple Andreev Reflections

Ultraviolet wavefront manipulation using topological insulator metasurfaces based on geometric phase

2021 ◽  
Vol 487 ◽  
pp. 126812
Author(s):  
Mingli Wan ◽  
Pengfei Ji ◽  
Rongrong Wang ◽  
Xiaopeng Zhang ◽  
Mingli Tian ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Geometric Phase

scholarly journals Moiré superlattice on the surface of a topological insulator

2021 ◽  
Vol 103 (15) ◽  
Author(s):  
Jennifer Cano ◽  
Shiang Fang ◽  
J. H. Pixley ◽  
Justin H. Wilson
Keyword(s):  
Topological Insulator
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