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We study transport across junctions of a Weyl and a multi-Weyl semimetal (WSM and a MSM) separated by a region of thickness $d$ which has a barrier potential $U_0$. We show that in the thin barrier limit ($U_0 \to \infty$ and $d \to 0$ with…

Strongly Correlated Electrons · Physics 2019-03-06 Debabrata Sinha , K. Sengupta

We study the zero temperature conductance and magnetoconductance of ballistic \textit{p-n} junctions in Weyl semimetals. Electron transport is mediated by Klein tunneling between \textit{n}- and \textit{p}- regions. The chiral anomaly that…

Mesoscale and Nanoscale Physics · Physics 2016-08-24 Songci Li , A. V. Andreev , B. Z. Spivak

We investigate magnetotransport across an interface between two Weyl semimetals (finite in both directions) whose Weyl nodes project onto two different surfaces which are twisted with respect to each other before being coupled. This gives…

Mesoscale and Nanoscale Physics · Physics 2025-11-20 Nirnoy Basak , Sumathi Rao , Faruk Abdulla

We investigate the tunneling conductance of Weyl semimetal with tilted energy dispersion by considering electron transmission through a p-n-p junction with one-dimensional electric and magnetic barrier. In the presence of both electric and…

Mesoscale and Nanoscale Physics · Physics 2017-07-21 Can Yesilyurt , Seng Ghee Tan , Gengchiau Liang , Mansoor B. A. Jalil

Magnetotransport and magneto-optics experiments offer a very powerful probe for studying the physical properties of materials. Here, we investigate the second-order nonlinear magnetoconductivity of tilted type-I Weyl and multi-Weyl…

Mesoscale and Nanoscale Physics · Physics 2022-06-22 Sunit Das , Kamal Das , Amit Agarwal

Klein tunneling refers to the absence of normal backscattering of electrons even under the case of high potential barriers. At the barrier interface, the perfect matching of electron and hole wavefunctions enables a unit transmission…

Mesoscale and Nanoscale Physics · Physics 2016-12-20 Can Yesilyurt , Seng Ghee Tan , Gengchiau Liang , Mansoor B. A. Jalil

We experimentally compare two types of interface structures with magnetic and non-magnetic Weyl semimetals. They are the junctions between a gold normal layer and magnetic Weyl semimetal Ti$_2$MnAl, and a ferromagnetic nickel layer and…

Mesoscale and Nanoscale Physics · Physics 2020-04-28 V. D. Esin , D. N. Borisenko , N. N. Kolesnikov , E. V. Deviatov

We theoretically study low energy electric transport in a junction consisting of a Weyl semimetal and a metallic superconductor. The characteristic features of the differential conductance depend on the relative directions between the…

Superconductivity · Physics 2014-07-10 Shuhei Uchida , Tetsuro Habe , Yasuhiro Asano

Type-II Weyl semimetals are characterized by the tilted linear dispersion in the low-energy excitations, mimicking Weyl fermions but with manifest violation of the Lorentz invariance, which has intriguing quantum transport properties. The…

Mesoscale and Nanoscale Physics · Physics 2018-05-30 Yi-Wen Wei , Chao-Kai Li , Jingshan Qi , Ji Feng

We study the quantum transport behavior of a normal-superconductor-normal junction based on type-II Weyl semimetal, which is arranged in the tilting direction of the Weyl semimetal. We find that both the crossed Andreev reflection and…

Mesoscale and Nanoscale Physics · Physics 2018-11-14 Xue-Si Li , Shu-Feng Zhang , Xue-Rui Sun , Wei-Jiang Gong

We compute the magneto-conductance of a short junction made out of a Weyl semi-metal. We show that it displays quantum oscillations at low magnetic field and low temperature, before reaching a universal high-field regime where it increases…

Mesoscale and Nanoscale Physics · Physics 2017-11-20 Thibaud Louvet , Manuel Houzet , David Carpentier

Klein tunneling is an old topic in relativistic quantum physics, and has been observed recently in graphene where massless particles reside. Here, we propose a new heterostructure platform for Klein tunneling to occur, which consists of a…

Mesoscale and Nanoscale Physics · Physics 2024-04-26 Jiajia Huang , Luyang Wang , Dao-Xin Yao

Magnetotransport provides key experimental signatures in Weyl semimetals. The longitudinal magnetoresistance is linked to the chiral anomaly and the transversal magnetoresistance to the dominant charge relaxation mechanism. Axial magnetic…

Mesoscale and Nanoscale Physics · Physics 2020-04-20 Jan Behrends , Roni Ilan , Jens H. Bardarson

We study transport through a Weyl semimetal quantum dot sandwiched between an $s$-wave superconductor and a normal lead. The conductance peaks at regular intervals and exhibits double periodicity with respect to two characteristic…

Mesoscale and Nanoscale Physics · Physics 2019-08-14 Dibya Kanti Mukherjee , Sumathi Rao , Arijit Kundu

Internodal dynamics of quasiparticles in Weyl semimetals manifest themselves in hydrodynamic, transport and thermodynamic phenomena and are essential for potential valleytronic applications of these systems. In an external magnetic field,…

Mesoscale and Nanoscale Physics · Physics 2020-05-19 G. Bednik , K. S. Tikhonov , S. V. Syzranov

We investigate electronic transport across a junction between a Weyl semimetal (WSM) and a layered Chern insulator (LCI) in the presence of a magnetic field perpendicular to the interface. The topological mismatch between the gapless Weyl…

Mesoscale and Nanoscale Physics · Physics 2026-04-30 Nirnoy Basak , Sumathi Rao , Faruk Abdulla

We investigate magnetotransport across an interface between two Weyl semimetals whose Weyl nodes project onto different interface momenta. Such an interface generically hosts Fermi arcs that connect Weyl nodes of identical chirality in…

Mesoscale and Nanoscale Physics · Physics 2023-08-10 Adam Yanis Chaou , Vatsal Dwivedi , Maxim Breitkreiz

The influence of recently discovered topological transition between type I and type II Weyl semi-metals on superconductivity is considered. A set of Gorkov equations for weak superconductivity in Weyl semi-metal under topological phase…

Superconductivity · Physics 2017-03-29 Dingping Li , Baruch Rosenstein , B. Shapiro , I. Shapiro

We theoretically investigate the transport and magnetotransport properties of three-dimensional Weyl semimetals. Using the RPA-Boltzmann transport scattering theory for electrons scattering off randomly distributed charged impurities,…

Mesoscale and Nanoscale Physics · Physics 2015-12-23 Navneeth Ramakrishnan , Mirco Milletari , Shaffique Adam

Microscopic theory of the normal-to-superconductor coexistence line of a 2D two-band Weyl superconductor subjected to magnetic field is constructed. It is shown that a Weyl semi-metal that is nonsuperconducting or having a small critical…

Superconductivity · Physics 2018-01-03 Baruch Rosenstein , B. Ya. Shapiro , Dingping Li , I. Shapiro
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