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19952026
most citedNonlinear properties of left-handed metamaterials

589 citations

Showing 2017Show all

23 papers · 1 filter

cond-mat.supr-con2017★ 13 cited

Soliton induced critical current oscillations in two-band superconducting bridges

P. M. Marychev, D. Yu. Vodolazov

Using time-dependent Ginzburg-Landau theory we find oscillations of critical current density as a function of the length of the bridge formed from two-band superconductor…

cond-mat.supr-con2017★ 36 cited

Proximity and Josephson effects in microstructures based on multiband superconductors

Y. Yerin, A. N. Omelyanchouk

Emerging in the 1950s, the multiband superconductivity has been considered for a long time as an approximate model in the form of a generalization of the BCS theory to the case of…

cond-mat.mes-hall2017★ 40 cited

Realistic picture of helical edge states in HgTe quantum wells

S. S. Krishtopenko, F. Teppe

We propose a minimal effective two-dimensional Hamiltonian for HgTe/CdHgTe quantum wells (QWs) describing the side maxima of the first valence subband. By using the Hamiltonian, we…

cond-mat.stat-mech2017★ 31 cited

Extreme reductions of entropy in an electronic double dot

Shilpi Singh, Édgar Roldán, Izaak Neri +6

We experimentally study negative fluctuations of stochastic entropy production in an electronic double dot operating in nonequilibrium steady-state conditions. We record millions o…

cond-mat.supr-con2017★ 4 cited

Laser pulse probe of chirality of Cooper pairs

V. L. Vadimov, A. S. Mel'nikov

The internal chirality of Cooper pairs is shown to modify strongly the response of a superconductor to the local heating by a laser beam. The suppression of the chiral order parame…

cond-mat.mes-hall2017★ 18 cited

Landau level spectroscopy of valence bands in HgTe quantum wells: Effects of symmetry lowering

L. S. Bovkun, A. V. Ikonnikov, V. Ya. Aleshkin +8

Landau level spectroscopy has been employed to probe the electronic structure of the valence band in a series of p-type HgTe/HgCdTe quantum wells with both normal and inverted orde…

cond-mat.mtrl-sci2017★ 6 cited

Nuclear Magnetic Resonance in Noncollinear Antiferromagnet Mn3Al2Ge3O12

Aleksey M. Tikhonov, Nikolai G. Pavlov, Oleg G. Udalov

The 55Mn nuclear magnetic resonance spectrum of noncollinear 12-sublattice antiferromagnet Mn3Al2Ge3O12 has been studied in the frequency range of 200 - 640 MHz in the external mag…

cond-mat.mtrl-sci2017★ 47 cited

Large gap quantum spin Hall insulator, massless Dirac fermions and bilayer graphene analogue in InAs/Ga(In)Sb heterostructures

S. S. Krishtopenko, F. Teppe

The quantum spin Hall insulator (QSHI) state has been demonstrated in two semiconductor systems - HgTe/CdTe quantum wells (QWs) and InAs/GaSb QW bilayers. Unlike the HgTe/CdTe QWs,…

cond-mat.mtrl-sci2017★ 63 cited

Temperature-induced topological phase transition in HgTe quantum wells

A. M. Kadykov, S. S. Krishtopenko, B. Jouault +9

We report a direct observation of temperature-induced topological phase transition between trivial and topological insulator in HgTe quantum well. By using a gated Hall bar device,…

physics.app-ph2017★ 27 cited

Proximity effect model of ultra-narrow NbN strips

I. Charaev, T. Silbernagel, B. Bachowsky +7

We show that narrow superconducting strips in superconducting (S) and normal (N) states are universally described by the model presenting them as lateral NSN proximity systems in w…

cond-mat.supr-con2017★ 22 cited

Anomalous diamagnetic response in multi-band superconductors with time-reversal broken symmetry

Y. Yerin, A. Omelyanchouk, S. -L. Drechsler +2

Within a Ginzburg-Landau formalism we establish analytically the necessary and sufficient conditions to realize a doubly degenerate superconducting ground state with broken time-re…

physics.app-ph2017★ 21 cited

Enhancement of superconductivity in NbN nanowires by negative electron-beam lithography with positive resist

I. Charaev, T. Silbernagel, B. Bachowsky +7

We performed comparative experimental investigation of superconducting NbN nanowires which were prepared by means of positive-and negative electron-beam lithography with the same p…

cond-mat.mtrl-sci2017★ 36 cited

The valence band energy spectrum of HgTe quantum wells with inverted band structures

G. M. Minkov, V. Ya. Aleshkin, O. E. Rut +4

The energy spectrum of the valence band in HgTe/CdHgTe quantum wells with a width ~nm has been studied experimentally by magnetotransport effects and theoretica…

cond-mat.supr-con2017★ 61 cited

Spontaneous currents in superconducting systems with strong spin-orbit coupling

S. Mironov, A. Buzdin

We show that Rashba spin-orbit coupling at the interface between a superconductor and a ferromagnet should produce a spontaneous current in the atomic thickness region near the int…

cond-mat.supr-con2017

Spin-valve effect in S/F/F and F/S/F structures of atomic thickness

Zh. Devizorova, S. Mironov

We show that the peculiarities of the electron band structure strongly affect the spin-valve effect in heterostructures consisting of a superconductor (S) and two ferromagnetic lay…

cond-mat.mes-hall2017★ 3 cited

The non-linear terahertz response of hot electrons in low-dimensional semiconductor superlattices: Suppression of the polar-optical phonon scattering

Anatoly A. Ignatov

We study the response of low-dimensional semiconductor superlattices to strong terahertz fields on condition of a strong suppression of inelastic scattering processes of electrons…

cond-mat.mes-hall2017★ 4 cited

Influence of image forces on the electron transport in ferroelectric tunnel junctions

O. G. Udalov, I. S. Beloborodov

We study influence of image forces on conductance of ferroelectric tunnel junctions. We show that the influence of image forces is twofold: i) they enhance the electro-resistance e…

cond-mat.other2017★ 5 cited

Spin current and second harmonic generation in non-collinear magnetic systems: the hydrodynamic model

E. A. Karashtin, A. A. Fraerman

We report a theoretical study of the second harmonic generation in a noncollinearly magnetized conductive medium with equilibrium spin current. The hydrodynamic model is used to un…

cond-mat.mtrl-sci2017★ 4 cited

Domain wall nucleation in ferromagnetic nanowire with perpendicular magnetization stimulated by stray field of V-shaped magnetic particle

O. L. Ermolaeva, V. L. Mironov

We report the results of micromagnetic simulations of domain wall (DW) nucleation and pinning/depinning processes in ferromagnetic planar structure consisting of nanowire (NW) with…

cond-mat.mtrl-sci2017★ 58 cited

Temperature-driven single-valley Dirac fermions in HgTe quantum wells

M. Marcinkiewicz, S. Ruffenach, S. S. Krishtopenko +13

We report on temperature-dependent magnetospectroscopy of two HgTe/CdHgTe quantum wells below and above the critical well thickness . Our results, obtained in magnetic fields…

cond-mat.mes-hall2017★ 15 cited

Competition of the Coulomb and hopping based exchange interactions in granular magnets

O. G. Udalov, I. S. Beloborodov

We study exchange coupling due to the interelectron Coulomb interaction between two ferromagnetic grains embedded into insulating matrix. This contribution to the exchange interact…

cond-mat.mtrl-sci2017★ 13 cited

Quantitative depth profiling of Si1-xGex structures by time-of-flight secondary ion mass spectrometry and secondary neutral mass spectrometry

M. N. Drozdov, Y. N. Drozdov, A. Csik +8

Quantification of Ge in Si1-xGex structures (0.092<x<0.78) was carried by time-of-flight secondary ion mass spectrometry (TOF-SIMS) and electron-gas secondary neutral mass spectrom…

cond-mat.supr-con2017★ 1 cited

Threshold fluctuations in a superconducting current-carrying bridge

P. M. Marychev, D. Yu. Vodolazov

We calculate the energy of threshold fluctuation which triggers the transition of superconducting current-carrying bridge to resistive state. We show that the dependence…