Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Yu. M. Galperin"'
Autor:
Alexey A. Dmitriev, A. K. Bakarov, I. L. Drichko, A. A. Bykov, I. Yu. Smirnov, Yu. M. Galperin
The DC and AC conductivities of the n-GaAs/AlAs heterostructure with two filled size quantization levels are studied within a wide magnetic field range. The electron spectrum of such heterostructure is characterized by two subbands (symmetric $S$ and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13e8e3702125cedcc4a907772f74c644
Autor:
D. V. Shamshur, A. V. Fokin, N. Yu. Mikhailin, Yu. M. Galperin, Yu. A. Kumzerov, R. V. Parfen’ev, V. I. Kozub
Publikováno v:
Physics of the Solid State. 60:1068-1072
Superconducting structures Pb–PG formed by filling a porous glass matrix with the lead from melt under pressure have been investigated. Samples with characteristic pore structure diameters of d ≈ 7, 3, and 2 nm have been studied. It has been foun
Autor:
A. V. Chernyaev, Yu. M. Galperin, N. Yu. Mikhailin, G. O. Andrianov, R. V. Parfen’ev, V. I. Kozub, D. V. Shamshur
Publikováno v:
Journal of Experimental and Theoretical Physics. 125:1137-1143
We have analyzed the temperature and magnetic-field dependences of resistivity ρ(T, H) of semiconducting compound Pb0.45Sn0.55Te doped with 5 at % In under a hydrostatic compression at P 4.8 kbar at T > 1 K (T c = 1.72 K at a level of 0.5ρ N at P =
Autor:
H. von Känel, Giovanni Isella, Daniel Chrastina, V. A. Malysh, I. L. Drichko, M. Kummer, Alexey A. Dmitriev, I. Yu. Smirnov, Yu. M. Galperin
The hopping ac conductance, which is realized at the transverse conductance minima in the regime of the integer Hall effect, has been measured using a combination of acoustic and microwave methods. Measurements have been made in the p-GeSi/Ge/GeSi st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a549c2a753048df1b8a8f91a0698f295
http://arxiv.org/abs/1812.04870
http://arxiv.org/abs/1812.04870
Publikováno v:
Reviews of Modern Physics. 86:361-418
The efficiency of the future devices for quantum information processing will be limited mostly by the finite decoherence rates of the individual qubits and quantum gates. Recently, substantial progress was achieved in enhancing the time within which
Publikováno v:
physica status solidi c. 5:800-808
We show that 1=f -noise in the variable range hopping regime is related to transitions of many-electrons clusters (fluctuators) between two almost degenerate states. Giant fluctuation times necessary for 1=f -noise are provided by slow rate of simult
Autor:
Yu. M. Galperin, V. M. Vinokur, I. L. Drichko, O. A. Mironov, I. Yu. Smirnov, Maksym Myronov, A. V. Suslov
Publikováno v:
JETP Letters. 86:244-248
Complex high-frequency (HF), σAC = σ1 − iσ2, and static, σDC, conductivities, as well as current-voltage characteristics, have been measured in p-Si/SiGe heterostructures with a low hole density (p = 8.2 × 1010 cm−2) at temperatures T = 0.3
Autor:
V. V. Yurchenko, Roger Wördenweber, J. I. Vestgården, D. V. Shantsev, Tom H. Johansen, Yu. M. Galperin
Publikováno v:
Physica C: Superconductivity and its Applications. :357-360
Superconducting YBaCuO thin films were equipped with a special arrangement of antidots (holes) of 1 micron radius in order to guide the stream of magnetic flux moving in (or out of) the sample. The flux distribution and its dynamics were visualized u
Autor:
A. I. Nikiforov, Yu. M. Galperin, I. L. Drichko, I. Yu. Smirnov, A. V. Suslov, A. I. Yakimov, A. M. D’yakonov
Publikováno v:
Journal of Experimental and Theoretical Physics. 101:1122-1129
High-frequency (HF) conductivity in systems with a dense (with a density of n = 3 × 1011 cm−2) array of self-organized Ge0.7Si0.3 quantum dots in silicon with different boron concentrations n B is determined by acoustic methods. The measurements o
Publikováno v:
Europhysics Letters (EPL). 71:21-27
The problem of Rabi oscillations in a qubit coupled to a fluctuator and in contact with a heath bath is considered. A scheme is developed for taking into account both phase and energy relaxation in a phenomenological way, while taking full account of