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When charge current passes through a normal metal that exhibits spin Hall effect, spin accumulates at the edge of the sample in the transverse direction. We predict that this spin accumulation, or spin voltage, enables quantum tunneling of…

Mesoscale and Nanoscale Physics · Physics 2016-09-21 Wei Chen , Manfred Sigrist , Dirk Manske

Tunneling, transport of particles through classically forbidden regions, is a pure quantum phenomenon. It governs numerous phenomena ranging from single-molecule electronics to donor-acceptor transition reactions. The main problem is the…

Quantum Physics · Physics 2017-10-13 Durmus Demir , Tugrul Guner

We propose a model of quasiparticle tunneling across the high-$T_c$ superconductor-insulator-normal metal junction based on the different mechanisms for tunneling of electrons at positive bias and dissociating polaronic Cooper pairs and…

Superconductivity · Physics 2011-06-08 S. Dzhumanov , O. K. Ganiev , Sh. S. Djumanov

The interlayer pair tunneling model of Anderson et al. is generalized to include the strong coupling effects associated with in-plane interactions. The equations for the superconducting transition temperature T_{c} are solved numerically…

supr-con · Physics 2009-10-30 B. Mitrovic , M. Castle

We study the nonequilibrium energy transport across a topological insulator/superconductor junction, by deriving an interfacial heat current formula through scattering wave approach. Several anomalous thermal properties are uncovered, such…

Mesoscale and Nanoscale Physics · Physics 2013-04-25 Jie Ren , Jian-Xin Zhu

It is shown that in a structure consisting of a superconducting ring-shaped electrode overlapped by a normal metal contact through a thin oxide barrier, measurements of the tunnel current in magnetic field can probe persistent currents in…

Superconductivity · Physics 2009-04-07 K. Yu. Arutyunov , T. T. Hongisto , D. Y. Vodolazov

The transfer of heat between the air and surrounding soil in underground tunnels ins investigated, as part of the analysis of environmental conditions in underground rail systems. Using standard turbulent modelling assumptions, flow…

Fluid Dynamics · Physics 2007-09-13 Stefan Sadokierski , Jean-Luc Thiffeault

The switching dynamics of current-biased Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$ intrinsic Josephson junctions (IJJs) was studied to clarify the effect of d-wave superconductivity and the stack structure on the switching properties. High…

Superconductivity · Physics 2008-11-07 H. Kashiwaya , T. Matsumoto , H. Shibata , S. Kashiwaya , H. Eisaki , Y. Yoshida , S. Kawabata , Y. 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 have measured coherent terahertz emission spectra from Bi2Sr2CaCu2O8+\delta\ mesa devices, as a function of temperature and mesa bias voltage. The emission frequency is found to be tunable by up to 12% by varying the temperature and bias…

Superconductivity · Physics 2015-05-30 T. M. Benseman , A. E. Koshelev , K. E. Gray , W. -K. Kwok , U. Welp , K. Kadowaki , M. Tachiki , T. Yamamoto

Time evolution of tunneling phenomena in medium is studied using a standard model of environment interaction. A semiclassical formula valid at low, but finite temperatures is derived in the form of integral transform for the reduced Wigner…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sh. Matsumoto , M. Yoshimura

A type I superconductor expels a magnetic field from its interior to a surface layer of thickness $\lambda_L$, the London penetration depth. $\lambda_L$ is a function of temperature, becoming smaller as the temperature decreases. Here we…

Superconductivity · Physics 2021-07-13 J. E. Hirsch

Josephson plasma frequency is computed within the interlayer tunneling theory and compared against the experimental results in Tl_2Ba_2CuO_y and La_{2-x}Sr_xCuO_4. It is shown that the theoretical estimates are fully consistent with the…

Superconductivity · Physics 2008-02-03 Sudip Chakravarty

Spin-resolved electron symmetry filtering is a key mechanism behind giant tunneling magnetoresistance (TMR) in Fe/MgO/Fe and similar magnetic tunnel junctions (MTJs), providing room temperature functionality in modern spin electronics.…

Mesoscale and Nanoscale Physics · Physics 2021-10-12 César González-Ruano , Coriolan Tiusan , Michel Hehn , Farkhad G. Aliev

This is a response to the comments [arXiv:2407.15682 and Phys.Rev.B 111, 146401 (2025)] by Yokouchi et al. on our paper in Phys.Rev.B 110, 174402 (2024). In this Reply, we note that (i) their arguments lack a discussion of whether the…

Materials Science · Physics 2025-05-05 Soju Furuta , Wataru Koshibae , Taka-hisa Arima , Fumitaka Kagawa

The tunneling time is here investigated by means of an electromagnetic model, for a system where a gap, between two parallel planes, acts as a classically-forbidden region for an impinging pulse with incidence angle larger than the critical…

Optics · Physics 2007-05-23 D. Mugnai , A. Ranfagni , L. Ronchi

A theory for boson-assisted tunneling via randomly distributed resonant states in a layered metals is developed. As particular examples, we consider the electron-phonon interaction and the interaction between localized and conduction…

Strongly Correlated Electrons · Physics 2009-03-22 D. B. Gutman , D. L. Maslov

We show that the formation of a gel by conducting colloidal particles leads to a dramatic enhancement in bulk conductivity, due to inter-particle electron tunneling, combining predictions from molecular dynamics simulations with structural…

Soft Condensed Matter · Physics 2013-06-24 Biagio Nigro , Claudio Grimaldi , Peter Ryser , Francesco Varrato , Giuseppe Foffi , Peter J. Lu

Thin film metal-insulator-metal junctions are used in a novel approach to investigate the dissipation of potential energy of multiply charged ions impinging on a polycrystalline metal surface. The ion-metal interaction leads to excited…

Momentum-space topology of electrons under strong spin-orbit coupling contributes to the electrically induced torques exerting on magnetic textures insensitively to disorder or thermal fluctuation. We present a direct connection between…

Mesoscale and Nanoscale Physics · Physics 2022-01-06 Yasufumi Araki , Jun'ichi Ieda