scholarly journals Majorana fermions in topological-insulator nanowires: From single superconducting nanowires to Josephson junctions

2017 ◽  
Vol 95 (15) ◽  
Author(s):  
Guang-Yao Huang ◽  
H. Q. Xu
Keyword(s):  
Topological Insulator ◽  
Josephson Junctions ◽  
Majorana Fermions ◽  
Superconducting Nanowires

scholarly journals Anomalous Fraunhofer Patterns in Gated Josephson Junctions Based on the Bulk-Insulating Topological Insulator BiSbTeSe2

Nano Letters ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 5124-5131 ◽  
Author(s):  
Subhamoy Ghatak ◽  
Oliver Breunig ◽  
Fan Yang ◽  
Zhiwei Wang ◽  
Alexey A. Taskin ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Josephson Junctions

scholarly journals Studies on the origin of the interfacial superconductivity of Sb2Te3/Fe1+yTe heterostructures

2019 ◽  
Vol 117 (1) ◽  
pp. 221-227 ◽  
Author(s):  
Jing Liang ◽  
Yu Jun Zhang ◽  
Xiong Yao ◽  
Hui Li ◽  
Zi-Xiang Li ◽  
...  
Keyword(s):  
Layer Thickness ◽  
Topological Insulator ◽  
Surface States ◽  
The Other ◽  
Majorana Fermions ◽  
Bulk Conductivity ◽  
Indirect Coupling ◽  
Topological Surface ◽  
Excess Fe

The recent discovery of the interfacial superconductivity (SC) of the Bi2Te3/Fe1+yTe heterostructure has attracted extensive studies due to its potential as a novel platform for trapping and controlling Majorana fermions. Here we present studies of another topological insulator (TI)/Fe1+yTe heterostructure, Sb2Te3/Fe1+yTe, which also has an interfacial 2-dimensional SC. The results of transport measurements support that reduction of the excess Fe concentration of the Fe1+yTe layer not only increases the fluctuation of its antiferromagnetic (AFM) order but also enhances the quality of the SC of this heterostructure system. On the other hand, the interfacial SC of this heterostructure was found to have a wider-ranging TI-layer thickness dependence than that of the Bi2Te3/Fe1+yTe heterostructure, which is believed to be attributed to the much higher bulk conductivity of Sb2Te3that enhances indirect coupling between its top and bottom topological surface states (TSSs). Our results provide evidence of the interplay among the AFM order, itinerant carries from the TSSs, and the induced interfacial SC of the TI/Fe1+yTe heterostructure system.

scholarly journals Magnetization reversal in superconductor/insulating ferromagnet/superconductor Josephson junctions on a three-dimensional topological insulator

2020 ◽  
Vol 102 (13) ◽  
Author(s):  
I. V. Bobkova ◽  
A. M. Bobkov ◽  
I. R. Rahmonov ◽  
A. A. Mazanik ◽  
K. Sengupta ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Magnetization Reversal ◽  
Josephson Junctions ◽  
Three Dimensional

scholarly journals High transparency Bi2Se3 topological insulator nanoribbon Josephson junctions with low resistive noise properties

2019 ◽  
Vol 115 (17) ◽  
pp. 172601 ◽  
Author(s):  
Gunta Kunakova ◽  
Thilo Bauch ◽  
Edoardo Trabaldo ◽  
Jana Andzane ◽  
Donats Erts ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Josephson Junctions ◽  
High Transparency

scholarly journals Highly skewed current–phase relation in superconductor–topological insulator–superconductor Josephson junctions

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Morteza Kayyalha ◽  
Aleksandr Kazakov ◽  
Ireneusz Miotkowski ◽  
Sergei Khlebnikov ◽  
Leonid P. Rokhinson ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Phase Relation ◽  
Josephson Junctions ◽  
Current Phase

scholarly journals Topological insulator nanoribbon Josephson junctions: Evidence for size effects in transport properties

2020 ◽  
Vol 128 (19) ◽  
pp. 194304
Author(s):  
Gunta Kunakova ◽  
Ananthu P. Surendran ◽  
Domenico Montemurro ◽  
Matteo Salvato ◽  
Dmitry Golubev ◽  
...  
Keyword(s):  
Transport Properties ◽  
Topological Insulator ◽  
Size Effects ◽  
Josephson Junctions
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