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The combination of spin-orbit coupling and superconductivity induces unconventional spin-triplet correlation in Ising superconductors. We theoretically investigate the spin transport through a normal metal-Ising superconductor junction,…

Superconductivity · Physics 2024-10-30 Yi-Xin Dai , Yue Mao , Qing-Feng Sun

Based on the BTK theory, we investigate the tunneling conductance in a uniaxially strained graphene-based normal metal (NG)/ barrier (I)/superconductor (SG) junctions. In the present model, we assume that depositing the conventional…

Mesoscale and Nanoscale Physics · Physics 2011-08-12 Bumned Soodchomshom

Tunneling conductance in ferromagnet / unconventional superconductor junctions is studied theoretically as a function of temperatures and spin-polarization in feromagnets. In d-wave superconductor junctions, the existence of a zero-energy…

Superconductivity · Physics 2009-11-07 T. Hirai , Y. Tanaka , N. Yoshida , Y. Asano , J. Inoue , S. Kashiwaya

In a recent publication, Lee $et$ $al.$ discussed experimental observation of Klein tunneling into a proximity-induced topological superconducting state of SmB$_{6}$ through the measurement of Andreev reflection with low-bias conductance…

Superconductivity · Physics 2019-07-18 Shekhar Das , Kurt Gloos , Yu. G. Naidyuk , Goutam Sheet

Recent experimental results indicate the possible realization of a bulk odd-frequency superconducting state in the compounds CeCu$_2$Si$_2$, and CeRhIn$_5$. Motivated by this, we present a study of the quantum transport properties of a…

Superconductivity · Physics 2008-05-07 Jacob Linder , Takehito Yokoyama , Yukio Tanaka , Yasuhiro Asano , Asle Sudbø

Tunneling conductance spectra of normal metal/insulator/superconductor (N/I/S) junctions are calculated to determine the potential of tunneling spectroscopy in investigations of topological superconductivity. Peculiar feature of topological…

Superconductivity · Physics 2016-03-08 Satoshi Kashiwaya , Hiromi. Kashiwaya , Kohta. Saitoh , Yasunori. Mawatari , Yukio. Tanaka

We propose a universal method to detect the specular Andreev reflection taking the simple two dimensional Weyl nodal-line semimetal-superconductor double-junction structure as an example. The quasiclassical quantization conditions are…

Superconductivity · Physics 2021-04-27 Qiang Cheng , Qing-Feng Sun

Tunneling spectroscopy at surfaces of unconventional superconductors has proven an invaluable tool for obtaining information about the pairing symmetry. It is known that mid gap Andreev bound states manifest itself as a zero bias…

Superconductivity · Physics 2015-09-09 Matthias Eschrig , Christian Iniotakis , Yukio Tanaka

The theoretical description and the survey of physical properties of superconducting states in the uranium ferromagnetic materials are presented. On the basis of microscopic theory is shown that the coupling between the electrons in these…

Superconductivity · Physics 2017-05-24 V. P. Mineev

We experimentally study electron transport across a single planar junction between the indium electrode and MnTe altermagnet candidate. We confirm standard Ohmic behavior with strictly linear current-voltage curves above the indium critical…

Mesoscale and Nanoscale Physics · Physics 2024-10-17 D. Yu. Kazmin , V. D. Esin , Yu. S. Barash , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

Using the Gorkov equations, we provide an exact solution for a one-dimensional model of superconductivity in the presence of a conical helicoidal exchange field. Due to the special type of symmetry of the system, the superconducting…

Superconductivity · Physics 2019-01-10 Hao Meng , A. V. Samokhvalov , A. I. Buzdin

We investigate transport properties of a superconducting junction of many ($N \ge 2$) one-dimensional quantum wires. We include the effectofelectron-electron interaction within the one-dimensional quantum wire using a weak interaction…

Mesoscale and Nanoscale Physics · Physics 2008-04-15 Sourin Das , Sumathi Rao , Arijit Saha

We investigate conductances and current correlations in a system consisting of a normal multichannel conductor connected to one superconducting and two ferromagnetic electrodes. For antiparallel orientation of the ferromagnet polarizations,…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 David Sanchez , Rosa Lopez , Peter Samuelsson , Markus Buttiker

Reflection of charge excitations at the step in the interaction strength in a Luttinger liquid can be of the Andreev type, even if the interactions are purely repulsive. The region with stronger repulsion plays the role of a normal metal in…

Mesoscale and Nanoscale Physics · Physics 2009-10-30 Dmitrii L. Maslov , Paul M. Goldbart

The energy of an Andreev bound state in a clean normal metal in contact with two superconductors disperses with the difference $\Delta \phi$ in the superconducting phase between the superconductors in much the same way as the energies of…

Superconductivity · Physics 2023-01-25 Venkat Chandrasekhar

Andreev levels deplete energy states above the superconductive gap, which leads to the peculiar nonmonotonous crossover in the local density of states of mesoscopic superconductor/normal-metal/superconductor junctions. This effect is…

Superconductivity · Physics 2008-05-13 Alex Levchenko

The Josephson effect in superconductor / diffusive ferromagnet / superconductor (SFS) junctions is studied using the recursive Green function method in the regime of large exchange energy in a ferromagnet. Motivated by recent experiment [R.…

Superconductivity · Physics 2015-06-25 Yasuhiro Asano , Yukio tanaka , Alexander Golubov

We study the superconducting transport phenomena, involving lensing effect and supercurrent in AA-stacked bilayer graphene, which is characterized by a linear gapless band with two shifted Dirac cones. Our findings indicate that cross…

Superconductivity · Physics 2025-09-05 Wei-Tao Lu , Tie-Feng Fang , Qing-Feng Sun

Here we review the literature concerning measurement of the Andreev reflection between a superconductor (S) and ferromagnet (F), with particular attention to the case where the ferromagnet is a transition metal oxide. We discuss the…

Materials Science · Physics 2015-03-03 Karen A Yates , Lesley F Cohen

Topological superconductors give rise to unconventional superconductivity, which is mainly characterized by the symmetry of the superconducting pairing amplitude. However, since the symmetry of the superconducting pairing amplitude is not…

Superconductivity · Physics 2018-05-09 C. Fleckenstein , N. Traverso Ziani , B. Trauzettel