Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Chashka, K."'
Autor:
Ribak, A., Skiff, R. Majlin, Mograbi, M., Rout, P. K., Fischer, M. H., Ruhman, J., Chashka, K., Dagan, Y., Kanigel, A.
Publikováno v:
Science advances 6 (13), eaax9480 (2020)
Layered van der Waals (vdW) materials are emerging as one of the most versatile directions in the field of quantum condensed matter physics. They allow an unprecedented control of electronic properties via stacking of different types of two-dimension
Externí odkaz:
http://arxiv.org/abs/1905.02225
Publikováno v:
Phys. Rev. B 96, 195131 (2017)
1T-TaS$_2$ is a layered transition metal dichalgeonide with a very rich phase diagram. At T=180K it undergoes a metal to Mott insulator transition. Mott insulators usually display anti-ferromagnetic ordering in the insulating phase but 1T-TaS$_2$ was
Externí odkaz:
http://arxiv.org/abs/1709.09440
Autor:
Lahoud, E., Maniv, E., Petrushevsky, M., Naamneh, M., Ribak, A., Wiedmann, S., Petaccia, L., Chashka, K. B., Dagan, Y., Kanigel, A.
Publikováno v:
Phys. Rev. B 88, 195107 (2013)
In an ideal bulk topological-insulator (TI) conducting surface states protected by time reversal symmetry enfold an insulating crystal. However, the archetypical TI, Bi2Se3, is actually never insulating; it is in fact a relatively good metal. Neverth
Externí odkaz:
http://arxiv.org/abs/1310.1001
The zero-field conductivities ($\sigma$) of the polycrystaline title materials, are governed by inter-grain transport. In the majority of cases their $\sigma$(T) can be described by the "fluctuation induced tunneling" model. Analysis of the results i
Externí odkaz:
http://arxiv.org/abs/1306.0726
Autor:
Salman, Z., Pomjakushina, E., Pomjakushin, V., Kanigel, A., Chashka, K., Conder, K., Morenzoni, E., Prokscha, T., Sedlak, K., Suter, A.
We present a detailed investigation of the magnetic and structural properties of magnetically doped 3D topological insulator Bi2Se3. From muon spin relaxation measurements in zero magnetic field, we find that even 5% Fe doping on the Bi site turns th
Externí odkaz:
http://arxiv.org/abs/1203.4850
Publikováno v:
Physical Review B 84, 224521 (2011)
Point contact conductance measurements on topological $Bi_2Te_2Se$ and $Bi_2Se_3$ films reveal a signature of superconductivity below 2-3 K. In particular, critical current dips and a robust zero bias conductance peak are observed. The latter suggest
Externí odkaz:
http://arxiv.org/abs/1111.3445
Publikováno v:
Nature Physics 8, 309-312 (2012)
We measured the electronic-structure of FeSe_xTe_1-x above and below Tc. In the normal state we find multiple bands with remarkably small values for the Fermi energy, E_F. Yet,below Tc we find a superconducting gap, Delta, that is comparable in size
Externí odkaz:
http://arxiv.org/abs/1107.1487
Autor:
Petrushevsky, M., Lahoud, E., Ron, A., Maniv, E., Diamant, I., Neder, I., Wiedmann, S., Guduru, V. K., Chiappini, F., Zeitler, U., Maan, J. C., Chashka, K., Kanigel, A., Dagan, Y.
Publikováno v:
Phys. Rev. B 86, 045131 (2012)
Shubnikov-de Haas (SdH) oscillations are observed in Bi2Se3 flakes with high carrier concentration and low bulk mobility. These oscillations probe the protected surface states and enable us to extract their carrier concentration, effective mass and D
Externí odkaz:
http://arxiv.org/abs/1106.3747
We report on pulsed and DC I-V characteristics of polycrystalline samples of three charge-ordered manganites, Pr_{2/3}Ca_{1/3}MnO_3, Pr_{1/2}Ca_{1/2}MnO_3, Bi_{1/2}Sr_{1/2}MnO_3 and of a double-perovskite Sr_2MnReO_6, in a temperature range where the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604049