Zobrazeno 1 - 10
of 261
pro vyhledávání: '"Shapiro, A. Ya."'
Autor:
Rosenstein, Baruch, Shapiro, B. Ya.
Novel "quasi two dimensional" typically layered (semi) metals offer a unique opportunity to control the density and even the topology of the electronic matter. Along with doping and gate voltage, a robust tuning is achieved by application of the hydr
Externí odkaz:
http://arxiv.org/abs/2303.14466
Autor:
Rosenstein, Baruh, Shapiro, B. Ya.
Novel quasi two dimensional typically layered semimetals offer a unique opportunity to control the density and even the topology of the electronic matter. In intercalated MoTe2 type II Weyl semimetal the tilt of the dispersion relation cones is so la
Externí odkaz:
http://arxiv.org/abs/2301.08631
Autor:
Sakhratov, Yu. A., Prokhnenko, O., Shapiro, A. Ya., Zhou, H. D., Svistov, L. E., Reyes, A. P., Petrenko, O. A.
The magnetic H - T phase diagram of a quasi-two-dimensional antiferromagnet RbFe(MoO4)2 with an equilateral triangular lattice structure is studied with 87Rb NMR and neutron diffraction techniques. This combination of experimental techniques allows u
Externí odkaz:
http://arxiv.org/abs/2112.06182
Autor:
Rosenstein, B., Shapiro, B. Ya.
Recently a phonon exchange d - wave pairing mechanism in cuprates was proposed. The phonons are the lateral apical oxygen atoms vibrations. They generate the attractive pairing potential peaked at X point of the Brillouin zone, V (k) = exp [-2kda], w
Externí odkaz:
http://arxiv.org/abs/2110.07976
Autor:
Shapiro, B. Ya.
The Aslamazov-Larkin conductivity (ALC) in the Weyl semi-metals is calculated both for Type-I and Type II for different dimensionality and magnetic fields. The ALC strongly depends on the tilt parameter of the dispersion relation cone. While the 3D a
Externí odkaz:
http://arxiv.org/abs/2108.06894
Autor:
Rosenstein, Baruch, Shapiro, B. Ya.
Publikováno v:
Phys. Rev. B 103, 224517 (2021)
It was observed recently (K. Shigekawa et al, PNAS 116, 2470 (2019)) that while monolayer iron chalcigenide FeSe on SrTiO3 (STO) substrate has a very high critical temperature, its chemical and structural "twin" material FeS=STO has a very low Tc if
Externí odkaz:
http://arxiv.org/abs/2102.03854
Autor:
Shapiro, Boris Ya.
The effect of negative magnetoresistance for thin superconducting wire was considered in a simple model. These phenomena originated from competition of two mechanism: fluctuations of the order parameter and quasiparticles charge imbalance which accom
Externí odkaz:
http://arxiv.org/abs/2011.04529
Autor:
Rosenstein, Baruch, Shapiro, B. Ya.
Publikováno v:
Journal Physics Communs 5 055013 (2021)
Microscopic theory of a high Tc cuprate BiSCO based on main pairing channel of electrons in CuO planes due to 40meV lateral vibrations of the apical oxygen atoms in adjacent the SrO ionic insulator layer is proposed. The separation between the vibrat
Externí odkaz:
http://arxiv.org/abs/2003.03521
Autor:
Rosenstein, Baruch, Shapiro, B. Ya.
Publikováno v:
Phys. Rev. B 100, 054514 (2019)
Using a microscopic model of lattice vibrations in the STO(001) substrate, an additional 50 mev longitudinal optical (LO) interface mode is identified. The soft mode propagating mainly in the first TiO2 layer ("O chains") has stronger electron - phon
Externí odkaz:
http://arxiv.org/abs/1905.10967
Autor:
Shapiro, I., Shapiro, B. Ya.
Simulations, based on the time dependent Ginzburg-Landau equations, show that the magnetization and spatial structure of the intermediate state strongly affected both by the radius of the sphere and by pinning center concentration. The intermediate s
Externí odkaz:
http://arxiv.org/abs/1812.09980