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We study the zero-temperature transport properties of one-dimensional normal-superconductor (NS) junctions with topological superconductors across their topological transitions. Working within the Blonder-Tinkham-Klapwijk (BTK) formalism…

Mesoscale and Nanoscale Physics · Physics 2015-11-06 F. Setiawan , P. M. R. Brydon , Jay D. Sau , S. Das Sarma

We have fabricated superconductor-normal metal side-junctions with different barrier transparencies out of PdTe$_2$ crystalline flakes and measured the differential conductance spectra. Modeling our measurements using a modified Blonder…

Superconductivity · Physics 2019-02-01 J. A. Voerman , J. C. de Boer , T. Hashimoto , Yingkai Huang , Chuan Li , A. Brinkman

We study the tunneling conductance of a ballistic normal metal / ferromagnet / spin-triplet superconductor junction using the extended Blonder-Tinkham-Klapwijk formalism as a model for a $c$-axis oriented Au / SrRuO$_{3}$ /…

Superconductivity · Physics 2018-07-16 L. A. B. Olde Olthof , S. -I. Suzuki , A. A. Golubov , M. Kunieda , S. Yonezawa , Y. Maeno , Y. Tanaka

We theoretically study the tunneling conductance of a junction consisting of a two-dimensional unconventional $p$-wave magnet (UPM) and a superconductor (SC) for various pairing symmetries. The zero bias conductance peaks arising from the…

Superconductivity · Physics 2025-01-17 Kazuki Maeda , Bo Lu , Keiji Yada , Yukio Tanaka

We calculate the tunneling conductance spectra of a normal metal / insulator / triplet superconductor from the reflection amplitudes using the Blonder-Tinkham-Klapwijk (BTK) formula. For the triplet superconductor we assume one special…

Superconductivity · Physics 2009-11-07 N. Stefanakis

We study the influence of a magnetic field $H$ on the zero-bias conductance peak (ZBCP) due to zero-energy Andreev bound state (ZES) in normal metal / unconventional superconductor. For p-wave junctions, ZBCP does not split into two by $H$…

Superconductivity · Physics 2009-11-07 Y. Tanaka , Y. Tanuma , K. Kuroki , S. Kashiwaya

A generalized method of image, incorporated with the non-equilibrium Keldysh-Green's function formalism, is employed to investigate the tunneling spectroscopy of hybrid systems in the configuration of planar junction. In particular,…

Strongly Correlated Electrons · Physics 2015-06-24 Shin-Tza Wu , Chung-Yu Mou

We show theoretically that quantized zero-bias conductance peaks should be ubiquitous in superconductor-semiconductor hybrids by employing a zero-dimensional random matrix model with continuous tuning parameters. We demonstrate that a…

Mesoscale and Nanoscale Physics · Physics 2020-01-15 Haining Pan , William S. Cole , Jay D. Sau , S. Das Sarma

The tunneling conductance spectra of a normal-metal/insulator/quasi-one-dimensional superconductor is calculated by using the Blonder-Tinkham-Klapwijk formulation. The pairing symmetry of the superconductor is assumed to be $p$, $d$, and…

Superconductivity · Physics 2007-05-23 N. Stefanakis

We calculate the tunneling conductance spectra of a normal-metal/insulator/triplet superconductor using the Blonder-Tinkham-Klapwijk (BTK) formulation. Possible states for the superconductor are considered with horizontal lines of nodes,…

Superconductivity · Physics 2009-11-07 N. Stefanakis

We theoretically study transport properties of voltage-biased one-dimensional superconductor--normal metal--superconductor tunnel junctions with arbitrary junction transparency where the superconductors can have trivial or nontrivial…

Mesoscale and Nanoscale Physics · Physics 2017-05-24 F. Setiawan , William S. Cole , Jay D. Sau , S. Das Sarma

We study the tunneling conductance of a clean normal metal/chiral p-wave superconductor junction using the extended Blonder-Tinkham-Klapwijk formalism. It is shown that the spin-orbit coupling of the Rashba type that is present near the…

Superconductivity · Physics 2014-11-20 S. Wu , K. V. Samokhin

We calculate tunneling conductance of normal metal and superconducting topological insulator CuxBi2Se3 junctions for the possible pairing symmetries. In the presence of gapless Andreev bound states (ABSs), the tunneling conductance shows a…

Superconductivity · Physics 2015-06-12 Ai Yamakage , Keiji Yada , Masatoshi Sato , Yukio Tanaka

The tunneling conductance spectra of a normal metal / insulator / singlet superconductor is calculated from the reflection amplitudes using the Blonder-Tinkham-Klapwijk (BTK) formulation. The pairing symmetry of the superconductor is…

Superconductivity · Physics 2009-11-07 N. Stefanakis

We investigate the conductance spectra of a normal/superconductor graphene junction using the extended Blonder-Tinkham-Klapwijk formalism, considering pairing potentials that are both conventional (isotropic s-wave) and unconventional…

Superconductivity · Physics 2009-11-13 Jacob Linder , Asle Sudbø

We study tunneling conductance in normal metal / insulator / ferromagnetic superconductor junctions. The tunneling spectra show a clear difference between spin-singlet s-wave pairing, spin-triplet opposite spin pairing and spin-triplet…

Superconductivity · Physics 2015-05-13 T. Yokoyama , Y. Tanaka

Tunneling conductance of a clean normal metal/d-wave superconductor junction is studied by using the extended Blonder-Tinkham-Klapwijk formalism. We show that the conductance is significantly affected by the interface spin-orbit coupling of…

Superconductivity · Physics 2015-05-19 S. Wu , K. V. Samokhin

Measurements of conductance spectra in a superconductor - topological insulator - normal metal thin film junctions of NbN-$\rm Bi_2Se_3$-Au are reported. Junctions with ex-situ and in-situ prepared $\rm NbN-Bi_2Se_3$ interfaces were…

Superconductivity · Physics 2015-06-05 Gad Koren , Tal Kirzhner

We calculate the tunneling conductance spectra of a ferromagnetic metal/insulator/superconductor using the Blonder-Tinkham-Klapwijk (BTK) formulation. Two possible states for the superconductor are considered with the time reversal symmetry…

Superconductivity · Physics 2009-11-07 N. Stefanakis

We propose a new approach of smearing origins of a zero-bias conductance peak (ZBCP) in high-Tc superconductor tunnel junctions through the analysis based on the circuit theory for a d-wave pairing symmetry. The circuit theory has been…

Superconductivity · Physics 2007-05-23 Iduru Shigeta , Yukio Tanaka , Fusao Ichikawa , Yasuhiro Asano
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