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相关论文: Confinement and Quantization Effects in Mesoscopic…

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The usually negligibly small thermoelectric effects in superconducting heterostructures can be boosted dramatically due to the simultaneous effect of spin splitting and spin filtering. Building on an idea of our earlier work [Phys. Rev.…

介观与纳米尺度物理 · 物理学 2015-02-20 P. Machon , M. Eschrig , W. Belzig

In this study, we investigate the magnetic and magnetocaloric properties of nanostructured La0.6Sr0.4CoO3 (LSC) samples synthesized under confinement conditions within porous templates. Using this method, we obtained de-agglomerated…

We study the magnetization dynamics in nanomagnets excited by stochastic magnetic fields to mimic temperature in a micromagnetic framework. The effect of confinement arising from the finite size of the structures is investigated, and we…

介观与纳米尺度物理 · 物理学 2021-04-09 Samuel D. Slöetjes , Björgvin Hjörvarsson , Vassilios Kapaklis

We review the present status of the experimental and theoretical research on the proximity effect in heterostructures composed of superconducting (S) and ferromagnetic (F) thin films. First, we discuss traditional effects originating from…

超导电性 · 物理学 2007-05-23 K. B. Efetov , I. A. Garifullin , A. F. Volkov , K. Westerholt

The presented results are part of a feasibility study of superheated superconducting microstructure detectors. The microstructures (dots) were fabricated using thin film patterning techniques with diameters ranging from $50\mu$m up to…

凝聚态物理 · 物理学 2009-10-22 C. Berger

We analyse a binary mixture of colloidal parallel hard cylindrical particles with identical diameters but dissimilar lengths $L_1$ and $L_2$, with $s=L_2/L_1=3$, confined by two parallel hard walls in a planar slit-pore geometry, using a…

软凝聚态物质 · 物理学 2019-03-27 Daniel de las Heras , Yuri Martinez-Raton , Enrique Velasco

Understanding heat transfer characteristics of phase change and enhancing thermal energy transport in nanoscale are of great interest in both theoretical and practical applications. In the present study, we investigated the nanoscale…

计算物理 · 物理学 2016-04-11 Li Li , Pengfei Ji , Yuwen Zhang

We study analytically the evolution of superconductivity in clean quasi-two-dimensional multiband supercon- ductors as the film thickness enters the nanoscale region by mean-field and semiclassical techniques. Tunneling into the substrate…

介观与纳米尺度物理 · 物理学 2016-01-15 Aurelio Romero-Bermúdez , Antonio M. García-García

The spin-orbit coupling can lead to exotic states of matter and unexpected behavior of the system properties. In this paper, we investigate the influence of spin-orbit coupling induced by proximity effects on a monolayer of superconductor…

超导电性 · 物理学 2018-02-09 Andrzej Ptok , Karen Rodríguez , Konrad Jerzy Kapcia

Advances in scanning tunneling spectroscopy reveal the presence of superconducting nanoregions well past the bulk thermal transition in strongly disordered superconductors. We use a Monte Carlo tool to capture the spatially differentiated…

强关联电子 · 物理学 2014-06-23 Sabyasachi Tarat , Pinaki Majumdar

Intermediate state (IS) flux structures in mesoscopic type-I superconductors are investigated within the Ginzburg-Landau theory. In addition to well-established tubular and laminar structures, the strong confinement leads to the formation…

超导电性 · 物理学 2012-02-15 G. R. Berdiyorov , A. D. Hernandez , F. M. Peeters

We investigate the effects of magnetic and electric fields on electron wavefunction interactions in single walled carbon nanotube bundles. The magnetoresistance measurements performed at 4.2K and the dependence of the data upon the electric…

介观与纳米尺度物理 · 物理学 2010-09-15 M. Salvato , M. Lucci , I. Ottaviani , M. Cirillo , S. Orlanducci , F. Toschi , M. L. Terranova

We present a systematic investigation of superconductivity in a topological superconductor candidate $T_{\rm d}$-MoTe$_2$ in the few-layer limit. By examining multiple mechanically exfoliated samples with different thicknesses, substrates…

On the basis of phenomenological Ginzburg-Landau approach we investigate the problem of order parameter nucleation in hybrid superconductor/ferromagnetic systems with a domain structure in applied external magnetic field. Both the isolated…

Controlling anisotropy in nanostructures is a challenging but rewarding task since confinement in one or more dimensions influences the physical and chemical properties of the items decisively. In particular, semiconducting nanostructures…

The superconducting transition temperature (TC) in nanostructured Pb remains nearly constant as the particle size is reduced from 65 to 7nm, below which size the superconductivity is lost rather abruptly. In contrast, there is a large…

介观与纳米尺度物理 · 物理学 2009-04-24 Sangita Bose , Charudatta Galande , S. P. Chockalingam , Rajarshi Banerjee , Pratap Raychaudhuri , Pushan Ayyub

High-entropy alloys (HEAs) have emerged as favorable choices for different applications, including superconductors. The present work examines the impact of nanostructuring via high-pressure torsion (HPT) on the superconducting properties of…

The magnetic coupling between two concentric mesoscopic superconductors with non-zero thickness is studied using the nonlinear Ginzburg-Landau theory. We calculated the free energy, the expelled field, the total field profile, the…

超导电性 · 物理学 2007-05-23 B. J. Baelus , S. V. Yampolskii , F. M. Peeters

Nanoscale size-effects drastically alter the fundamental properties of semiconductors. Here, we investigate the dominant role of quantum confinement in the field-effect device properties of free-standing InAs nanomembranes with varied…

Quantum shape effect appears under the size-invariant shape transformations of strongly confined structures. Such a transformation distinctively influences the thermodynamic properties of confined particles. Due to their characteristic…

介观与纳米尺度物理 · 物理学 2022-11-08 Alhun Aydin , Jonas Fransson , Altug Sisman