Zobrazeno 1 - 10
of 3 521
pro vyhledávání: '"Rakhmanov As"'
Autor:
Azarevich, A. N., Khrykina, O. N., Bolotina, N. B., Gridchina, V. G., Bogach, A. V., Demishev, S. V., Krasnorussky, V. N., Gavrilkin, S. Yu., Tsvetkov, A. Yu., Shitsevalova, N. Yu., Voronov, V. V., Kugel, K. I., Rakhmanov, A. L., Gabani, S., Flachbart, K., Sluchanko, N. E.
The presented studies of resistivity (R), thermal conductivity (k) and specific heat (C) at low temperature 1.8-7 K in magnetic field up to 90 kOe made it possible to detect for the first time the exponential field dependences R(H), 1/k(H), $C(H) \si
Externí odkaz:
http://arxiv.org/abs/2409.04139
Given a sequence of polynomials $Q_n$ of degree $n$, we consider the triangular table of derivatives $Q_{n, k}(x)=d^k Q_n(x) /d x^k$. Under the only assumption that the sequence $\{Q_n\}$ has a weak* limiting zero distribution (an empirical distribut
Externí odkaz:
http://arxiv.org/abs/2408.13851
Publikováno v:
Physical Review A 109, 053519 (2024)
We consider a quantum particle under the dynamical confinement caused by PT-symmetric box with a moving wall. The latter is described in terms of the time-dependent Schr\"{o}dinger equation obeying the time-dependent PT-symmetric boundary conditions.
Externí odkaz:
http://arxiv.org/abs/2403.18283
Publikováno v:
Phys. Scr. 99, 075308 (2024)
Quantum dynamics of a Dirac particle in a 1D box with moving wall is studied. Dirac equation with time-dependent boundary condition is mapped onto that with static one, but with time-dependent mass. Exact analytical solution of such modified Dirac eq
Externí odkaz:
http://arxiv.org/abs/2401.02837
Publikováno v:
Physica E 165 116118 (2025)
This work theoretically analyzes electronic ordering in AA-stacked bilayer graphene and the role of the Coulomb interaction in these many-body phenomena. Using the random phase approximation to account for screening, we find intra-layer effective int
Externí odkaz:
http://arxiv.org/abs/2311.07405
Publikováno v:
Phys. Scr. 99 075308 (2024)
We provide a theory for electronic transitions induced by ultrashort electromagnetic pulses in two-dimensional artificial relativistic atoms which are created by a charged impurity in a gapped graphene monolayer. Using a non-perturbative sudden-pertu
Externí odkaz:
http://arxiv.org/abs/2311.03051
Publikováno v:
Physica Scripta 99, 075308 (2024)
Quantum dynamics of a particle confined in a box with time-dependent wall is revisited by considering some unexplored aspects of the problem. In particular, the case of dynamical confinement in a time-dependent box in the presence of purely time-vary
Externí odkaz:
http://arxiv.org/abs/2309.15389
Autor:
Akzyanov, R. S., Rakhmanov, A. L.
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures 162, 115980 (2024)
We study the influence of the antiferromagnetic order on the surface states of topological insulators. We derive an effective Hamiltonian for these states, taking into account the spatial structure of the antiferromagnetic order. We obtain a typical
Externí odkaz:
http://arxiv.org/abs/2309.11216
Publikováno v:
Phys. Rev. B 109, 094505 (2024)
We argue that doped twisted bilayer graphene with magical twist angle can become superconducting. In our theoretical scenario, the superconductivity coexists with the spin-density-wave-like ordering. Numerical mean-field analysis demonstrates that th
Externí odkaz:
http://arxiv.org/abs/2309.00346
Publikováno v:
East European Journal of Physics, Iss 3, Pp 375-378 (2024)
In this work, new sensitive thermal sensors based on Si and Si were developed. Single-crystal n- and p-type silicon samples doped with phosphorus and boron during growth were used for the study. These samples were first doped with platinum and pallad
Externí odkaz:
https://doaj.org/article/0e316aae4ee84e4ea24b8c6310ce7918
