Zobrazeno 1 - 10
of 632
pro vyhledávání: '"Galperin, Y M"'
Autor:
Drichko, I. L., Smirnov, I. Yu., Suslov, A. V., Baldwin, K. W., Pfeiffer, L. N., West, K. W., Galperin, Y. M.
We focused on the transverse AC magneto-conductance of a high mobility $p$-GaAs/AlGaAs quantum well ($p=1.2\times 10^{11}$~cm$^{-2}$) in the vicinity of two values of the Landau level filling factor $\nu$: $\nu =1$ (integer quantum Hall effect) and $
Externí odkaz:
http://arxiv.org/abs/2302.02708
Autor:
Colauto, F., Carmo, D., de Andrade, A. M. H., Oliveira, A. A. M., Ortiz, W. A., Galperin, Y. M., Johansen, T. H.
A method to measure the electrical connectivity between square superconducting plates joined by weak link interfaces is presented. It is based on observation of lines where the flow of critical current abruptly changes direction due to the presence o
Externí odkaz:
http://arxiv.org/abs/2103.10793
In this short review we pass through the milestones in the studies of the electronic topological transitions (ETT) and focus on some recent applications of the ideas worked out in their classical theory. These are: two-dimensional electron systems, d
Externí odkaz:
http://arxiv.org/abs/2103.04642
Publikováno v:
Phys. Rev. Lett. 125, 217005 (2020)
We extend the thermodynamic approach for the description of the thermal Hall effect in the vicinity of a superconducting phase transition, in the fluctuation dominated regime. We show that the Hall heat conductivity is proportional to the product of
Externí odkaz:
http://arxiv.org/abs/2006.06097
Autor:
Drichko, I. L., Smirnov, I. Yu., Suslov, A. V., Kamburov, D., Baldwin, K. W., Pfeiffer, L. N., West, K. W., Galperin, Y. M.
Using acoustic method we study dependences of transverse AC conductance, $\sigma (\omega)$, on magnetic field, temperature and the amplitude of AC electric field in a wide (75 nm) quantum well (QW) structure focusing on the vicinity of the filling fa
Externí odkaz:
http://arxiv.org/abs/1912.02577
The performance of low temperature detectors utilizing thermal effects is determined by their energy relaxation properties. Usually, heat transport experiments in mesoscopic structures are carried out in the steady-state, where temperature gradients
Externí odkaz:
http://arxiv.org/abs/1910.09448
Publikováno v:
Phys. Rev. B 101, 024511 (2020)
We theoretically analyze two setups of low energy single-photon counters based on Josephson junctions (JJ). For this, we propose two simple and general models, based on the macroscopic quantum tunneling formalism (MQT). The first setup is similar to
Externí odkaz:
http://arxiv.org/abs/1907.02799
Publikováno v:
Jounranl of Magnetism and Magnetic Materials 465, 304-308 (2018)
We develop a theory of the reversible switching of the magnetic state of the ferromagnet-insulator-normal metalferromagnet (FINF) nanostructure. The switching is controlled by tuning the Coulomb blockade strength via the gate voltage on the normal me
Externí odkaz:
http://arxiv.org/abs/1807.02051
Autor:
Galperin, Y. M., Grassano, D., Gusynin, V. P., Kavokin, A. V., Pulci, O., Sharapov, S. G., Shubnyi, V. O., Varlamov, A. A.
Publikováno v:
Journal of Experimental and Theoretical Physics, 2018, Vol. 127, No. 5, pp. 958-983
We review the behavior of the entropy per particle in various two-dimensional electronic systems. The entropy per particle is an important characteristic of any many body system that tells how the entropy of the ensemble of electrons changes if one a
Externí odkaz:
http://arxiv.org/abs/1807.01606
Publikováno v:
Low Temp. Phys. 44, 460-476 (2018)
Stability of the vortex matter -- magnetic flux lines penetrating into the material -- in type-II superconductor films is crucially important for their application. If some vortices get detached from pinning centres, the energy dissipated by their mo
Externí odkaz:
http://arxiv.org/abs/1807.00062