Unconventional Josephson Effect in Hybrid Superconductor-Topological Insulator Devices

Williams, J. R.; Bestwick, A. J.; Gallagher, P.; Hong, Seung Sae; Cui, Y.; Bleich, Andrew S.; Analytis, J. G.; Fisher, I. R.; Goldhaber-Gordon, D.

doi:10.1103/PhysRevLett.109.056803

Title: Unconventional Josephson Effect in Hybrid Superconductor-Topological Insulator Devices

Full Record
Other Related Research

Authors:: Williams, J. R.; Bestwick, A. J.; Gallagher, P.; Hong, Seung Sae; Cui, Y.; Bleich, Andrew S.; Analytis, J. G.; Fisher, I. R.; Goldhaber-Gordon, D.

Publication Date:: 2012-07-30

Sponsoring Org.:: USDOE

OSTI Identifier:: 1103009

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Volume: 109; Journal Issue: 5; Journal ID: ISSN 0031-9007

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Citation Formats


                    Williams, J. R., Bestwick, A. J., Gallagher, P., Hong, Seung Sae, Cui, Y., Bleich, Andrew S., Analytis, J. G., Fisher, I. R., and Goldhaber-Gordon, D. Unconventional Josephson Effect in Hybrid Superconductor-Topological Insulator Devices.  United States: N. p., 2012. 
Web.  doi:10.1103/PhysRevLett.109.056803.

Copy to clipboard


                    Williams, J. R., Bestwick, A. J., Gallagher, P., Hong, Seung Sae, Cui, Y., Bleich, Andrew S., Analytis, J. G., Fisher, I. R., & Goldhaber-Gordon, D. Unconventional Josephson Effect in Hybrid Superconductor-Topological Insulator Devices.  United States.  https://doi.org/10.1103/PhysRevLett.109.056803

Copy to clipboard


                    Williams, J. R., Bestwick, A. J., Gallagher, P., Hong, Seung Sae, Cui, Y., Bleich, Andrew S., Analytis, J. G., Fisher, I. R., and Goldhaber-Gordon, D. Mon .  
"Unconventional Josephson Effect in Hybrid Superconductor-Topological Insulator Devices".  United States.  https://doi.org/10.1103/PhysRevLett.109.056803.

Copy to clipboard


                    
@article{osti_1103009,

  title        = {Unconventional Josephson Effect in Hybrid Superconductor-Topological Insulator Devices},

  author       = {Williams, J. R. and Bestwick, A. J. and Gallagher, P. and Hong, Seung Sae and Cui, Y. and Bleich, Andrew S. and Analytis, J. G. and Fisher, I. R. and Goldhaber-Gordon, D.},

  abstractNote = {},

  doi          = {10.1103/PhysRevLett.109.056803},

  journal      = {Physical Review Letters},

  number       = 5,

  volume       = 109,

  place        = {United States},

  year         = {2012},

  month        = {7}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Publisher's Version of Record
https://doi.org/10.1103/PhysRevLett.109.056803

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 199 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

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

Journal Article Jauregui, Luis A. ; Kayyalha, Morteza ; Kazakov, Aleksandr ; ... - Applied Physics Letters

We report on the observation of gate-tunable proximity-induced superconductivity and multiple Andreev reflections (MARs) in a bulk-insulating BiSbTeSe₂ topological insulator nanoribbon (TINR) Josephson junction with superconducting Nb contacts. We observe a gate-tunable critical current (I_C) for gate voltages (V_g) above the charge neutrality point (V_CNP), with I_C as large as 430 nA. We also observe MAR peaks in the differential conductance (dI/dV) versus DC voltage (V_dc) across the junction corresponding to sub-harmonic peaks (at V_dc = V_n = 2Δ_Nb/en, where ΔNb is the superconducting gap of the Nb contacts and n is the sub-harmonic order). The sub-harmonic order, n, exhibitsmore »« less
Cited by 2
https://doi.org/10.1063/1.5008746

Full Text Available
Signatures of Majorana Fermions in Hybrid Superconductor-Topological Insulator Devices

Journal Article Williams, J R ; Bestwick, A J ; Gallagher, P ; ... - Phys.Rev.Lett.109:056803,2012
https://doi.org/10.2172/1051382

Full Text Available
Unconventional supercurrent phase in Ising superconductor Josephson junction with atomically thin magnetic insulator

Journal Article Idzuchi, H. ; Pientka, F. ; Huang, K. -F. ; ... - Nature Communications

Abstract In two-dimensional (2D) NbSe ₂ crystal, which lacks inversion symmetry, strong spin-orbit coupling aligns the spins of Cooper pairs to the orbital valleys, forming Ising Cooper pairs (ICPs). The unusual spin texture of ICPs can be further modulated by introducing magnetic exchange. Here, we report unconventional supercurrent phase in van der Waals heterostructure Josephson junctions (JJs) that couples NbSe ₂ ICPs across an atomically thin magnetic insulator (MI) Cr ₂ Ge ₂ Te ₆ . By constructing a superconducting quantum interference device (SQUID), we measure the phase of the transferred Cooper pairs in the MI JJ. We demonstrate amore »« less
https://doi.org/10.1038/s41467-021-25608-1
Highly skewed current–phase relation in superconductor–topological insulator–superconductor Josephson junctions

Journal Article Kayyalha, Morteza ; Kazakov, Aleksandr ; Miotkowski, Ireneusz ; ... - npj Quantum Materials

Three-dimensional topological insulators (TIs) in proximity with superconductors are expected to exhibit exotic phenomena, such as topological superconductivity (TSC) and Majorana-bound states (MBS), which may have applications in topological quantum computation. In superconductor–TI–superconductor Josephson junctions, the supercurrent versus the phase difference between the superconductors, referred to as the current–phase relation (CPR), reveals important information including the nature of the superconducting transport. Here, we study the induced superconductivity in gate-tunable Josephson junctions (JJs) made from topological insulator BiSbTeSe₂with superconducting Nb electrodes. We observe highly skewed (non-sinusoidal) CPR in these junctions. The critical current, or the magnitude of the CPR, increases withmore »« less
https://doi.org/10.1038/s41535-020-0209-5

Full Text Available
Influence of topological edge states on the properties of Al/Bi₂Se₃/ Al hybrid Josephson devices

Journal Article Galletti, L. ; Charpentier, S. ; Iavarone, Maria ; ... - Physical Review. B, Condensed Matter and Materials Physics

In superconductor-topological insulator-superconductor hybrid junctions, the barrier edge states are expected to be protected against backscattering, to generate unconventional proximity effects, and, possibly, to signal the presence of Majorana fermions. The standards of proximity modes for these types of structures have to be settled for a neat identification of possible new entities. Through a systematic and complete set of measurements of the Josephson properties we find evidence of ballistic transport in coplanar Al-Bi₂Se₃-Al junctions that we attribute to a coherent transport through the topological edge state. The shunting effect of the bulk only influences the normal transport. This behavior, whichmore »« less
https://doi.org/10.1103/physrevb.89.134512

Full Text Available

Similar Records