中文
相关论文

相关论文: Theory of universal differential conductance of ma…

200 篇论文

Magnetic topological semimetals are increasingly fueling interests in exotic electronic-thermal physics including thermoelectrics and spintronics. To control the transports of topological carriers in such materials becomes a central issue.…

介观与纳米尺度物理 · 物理学 2024-09-17 Shen Zhang , Jinying Yang , Meng Lyu , Junyan Liu , Binbin Wang , Hongxiang Wei , Claudia Felser , Wenqing Zhang , Enke Liu , Baogen Shen

We investigate the influence of a time-periodic driving (for example, by shining circularly polarized light) on three-dimensional Weyl and multi-Weyl semimetals, in the planar Hall and planar thermal Hall set-ups. We incorporate the effects…

介观与纳米尺度物理 · 物理学 2026-02-13 Shivam Yadav , Serena Fazzini , Ipsita Mandal

We propose two complementary design principles for engineering three-dimensional (3D) Weyl semimetals and superconductors in a layer-by-layer setup which includes even and odd parity orbitals in alternating layers - dubbed orbital selective…

介观与纳米尺度物理 · 物理学 2013-07-31 Tanmoy Das

In topological materials, Dirac fermions can split into two Weyl fermions with opposite chiralities due to the breaking of space inversion symmetry, while in non-centrosymmetric superconductors, novel superconducting electron pairing…

Weyl semimetals have been intensely studied as a three dimensional realization of a Dirac-like excitation spectrum where the conduction bands and valence bands touch at isolated Weyl points in momentum space. Like in graphene, this property…

强关联电子 · 物理学 2017-11-22 Tobias Holder , Chia-Wei Huang , Pavel Ostrovsky

The transport properties between ferromagnets and high-Tc superconductors are investigated in La0.67Sr0.33MnO3/YBa2Cu3O7-d (LSMO/YBCO)junctions in the geometry of cross-strip lines. The conductance spectra show zero-bias conductance peaks…

超导电性 · 物理学 2009-10-31 A. Sawa , S. Kashiwaya , H. Obara , H. Yamasaki , M. Koyanagi , N. Yoshida , Y. Tanaka

Tunneling transport across the p-n-p junction of Weyl semimetal with tilted energy dispersion is investigated. We report that the electrons around different valleys experience opposite direction refractions at the barrier interface when the…

介观与纳米尺度物理 · 物理学 2018-02-12 Can Yesilyurt , Zhuo Bin Siu , Seng Ghee Tan , Gengchiau Liang , Shengyuan A. Yang , Mansoor B. A. Jalil

The possibility of inducing superconductivity in type-I Weyl semimetal through coupling its surface to a superconductor was investigated. A single crystal of NbP, grown by chemical vapor transport method, was carefully characterized by XRD,…

Weyl degeneracies in spectra of magnetoplasma waves enable nonreciprocal energy flow and topologically protected modes, yet conventional materials require impractical magnetic fields to operate. Developing an effective Hamiltonian framework…

介观与纳米尺度物理 · 物理学 2026-01-16 Yuanzhao Wang , Oleg V. Kotov , Dmitry K. Efimkin

We present a theoretical description of the differential conductance of point contacts between a normal metal and a multi-band superconductor with extended s\pm pairing symmetry. We demonstrate that the interband impurity scattering…

超导电性 · 物理学 2012-02-24 Dushko Kuzmanovski , Maxim G. Vavilov

Tunneling conductance in diffusive normal metal / insulator / s-wave superconductor (DN/I/S) junctions is calculated for various situations by changing the magnitudes of the resistance and Thouless energy in DN and the transparency of the…

超导电性 · 物理学 2009-11-07 Y. Tanaka , A. A. Golubov , S. Kashiwaya

Planar tunneling junctions of the presumably unconventional superconductor FeSe were prepared and investigated. The junctions consisted of FeSe/AlOx/Ag multilayers patterned lithographically into mesa structures. Bias voltage dependent…

超导电性 · 物理学 2018-01-30 Eike Venzmer , Alexander Kronenberg , Martin Jourdan

The motivation to search for signatures of superconductivity in Weyl semi-metals and other topological phases lies in their potential for hosting exotic phenomena such as nonzero-momentum pairing or the Majorana fermion, a viable candidate…

超导电性 · 物理学 2018-08-30 M. R. van Delft , S. Pezzini , M. König , P. Tinnemans , N. E. Hussey , S. Wiedmann

In a recent paper [R. Soto-Garrido and E. Mu\~noz, J. Phys. Condens. Matter 30, 195302 (2018)], we studied the electronic transport properties in Weyl semimetals (WSMs) submitted to the combined effects of torsional mechanical strain and…

介观与纳米尺度物理 · 物理学 2018-12-07 Enrique Muñoz , Rodrigo Soto-Garrido

We argue that in order to study the magneto-transport in a relativistic Weyl fluid, it is needed to take into account the associated quantum corrections, namely the side-jump effect, at least to second order. To this end, we impose Lorentz…

高能物理 - 理论 · 物理学 2019-05-28 Navid Abbasi , Farid Taghinavaz , Omid Tavakol

The search for unconventional superconductivity in Weyl semimetal materials is currently an exciting pursuit, since such superconducting phases could potentially be topologically nontrivial and host exotic Majorana modes. The layered…

Recent studies show superconductivity provides new perspectives on spintronics. We study a heterostructure composed of an s-wave superconductor and a cubic chiral-magnet that can stabilize a topological spin texture, a skyrmion. We propose…

介观与纳米尺度物理 · 物理学 2016-12-21 Rina Takashima , Satoshi Fujimoto

We present a formula for tunneling conductance in ballistic ferromagnet/ferromagnetic insulator/superconductor junctions where the superconducting state has opposite spin pairing symmetry. The formula can involve correctly a ferromagnetism…

超导电性 · 物理学 2015-03-20 Nobukatsu Yoshida , Masashi Yamashiro

We investigate quantum transport in a normal/superconductor graphene heterostructure, including the possibility of an anisotropic pairing potential in the superconducting region. We find that under certain circumstances, the conductance…

超导电性 · 物理学 2009-11-13 J. Linder , A. Sudbø

Van der Waals materials like NbSe$_2$ or TaS$_2$ have demonstrated Ising superconductivity down to atomically thin layers. Due to the spin-orbit coupling, these superconductors have the in-plane upper critical magnetic field far beyond the…

超导电性 · 物理学 2022-10-05 Xiaodong Hu , Ying Ran