Zobrazeno 1 - 10
of 357
pro vyhledávání: '"Roditchev, D."'
Autor:
Tresca, C., Bilgeri, T., Menard, G., Cherkez, V., Federicci, R., Longo, D., Hervé, M., Debontridder, F., David, P., Roditchev, D., Profeta, G., Cren, T., Calandra, M., Brun, C.
Publikováno v:
Phys. Rev. B 107, 035125 (2023)
We show how to properly extract the local charge order in two-dimensional materials from scanning tunneling microscopy/spectroscopy (STM/STS) measurements. When the charge order presents spatial variations at the atomic scale inside the unit cell and
Externí odkaz:
http://arxiv.org/abs/2209.05830
Autor:
Kim, T. K., Pervakov, K. S., Vlasenko, V. A., Sadakov, A. V., Usoltsev, A. S., Evtushinsky, D. V., Jung, S. W., Poelchen, G., Kummer, K., Roditchev, D., Stolyarov, V. S., Golovchanskiy, I. A., Vyalikh, D. V., Borisov, V., Valenti, R., Ernst, A., Eremeev, S. V., Chulkov, E. V., Pudalov, V. M.
Publikováno v:
Physics-Uspekhi, 65(7) 740 (2022)
In the novel stoichiometric iron-based material RbEuFe4As4 superconductivity coexists with a peculiar long-range magnetic order of Eu 4f states; their coexistance is puzzling and represents a challenge for both experiment and theory. Using angle-reso
Externí odkaz:
http://arxiv.org/abs/2108.13928
Autor:
Kim, T. K., Pervakov, K. S., Evtushinsky, D. V., Jung, S. W., Poelchen, G., Kummer, K., Vlasenko, V. A., Pudalov, V. M., Roditchev, D., Stolyarov, V. S., Vyalikh, D. V., Borisov, V., Valentí, R., Ernst, A., Eremeev, S. V., Chulkov, E. V.
Publikováno v:
Phys. Rev. B 103, 174517 (2021)
In the novel stoichiometric iron-based material RbEuFe$_{4}$As$_{4}$ superconductivity coexists with a peculiar long-range magnetic order of Eu 4f states. Using angle-resolved photoemission spectroscopy, we reveal a complex three dimensional electron
Externí odkaz:
http://arxiv.org/abs/2008.00736
Autor:
Carbillet, C., Cherkez, V., Skvortsov, M. A., Feigel'man, M. V., Debontridder, F., Ioffe, L. B., Stolyarov, V. S., Ilin, K., Siegel, M., Noûs, C., Roditchev, D., Cren, T., Brun, C.
Publikováno v:
Phys. Rev. B 102, 024504 (2020)
Disorder has different profound effects on superconducting thin films. For a large variety of materials, increasing disorder reduces electronic screening which enhances electron-electron repulsion. These fermionic effects lead to a mechanism describe
Externí odkaz:
http://arxiv.org/abs/1903.01802
Autor:
Stolyarov, V. S., Casano, A., Belyanchikov, M. A., Astrakhantseva, A. S., Grebenchuk, S. Yu., Baranov, D. S., Golovchanskiy, I. A., Voloshenko, I., Zhukova, E. S., Gorshunov, B. P., Muratov, A. V., Dremov, V. V., Vinnikov, L. Ya., Roditchev, D., Liu, Y., Cao, G. -H., Dressel, M., Uykur, E.
Publikováno v:
Phys. Rev. B 98, 140506 (2018)
Transport, magnetic and optical investigations on EuRbFe$_4$As$_4$ single crystals evidence that the ferromagnetic ordering of the Eu$^{2+}$ magnetic moments at $T_N=15$ K, below the superconducting transition ($T_c=36$ K), affects superconductivity
Externí odkaz:
http://arxiv.org/abs/1807.04135
Chiral spin texture in the charge-density-wave phase of the correlated metallic Pb/Si(111) monolayer
Autor:
Tresca, C., Brun, C., Bilgeri, T., Menard, G., Cherkez, V., Federicci, R., Longo, D., Debontridder, F., D'angelo, M., Roditchev, D., Profeta, G., Calandra, M., Cren, T.
Publikováno v:
Phys. Rev. Lett. 120, 196402 (2018)
We investigate the 1/3 monolayer $\alpha$-Pb/Si(111) surface by scanning tunneling spectroscopy (STS) and fully relativistic first-principles calculations. We study both the high-temperature $\sqrt{3}\times\sqrt{3}$ and low-temperature $3\times 3$ re
Externí odkaz:
http://arxiv.org/abs/1801.00426
Autor:
Stolyarov, V. S., Remizov, S. V., Shapiro, D. S., Pons, S., Vlaic, S., Aubin, H., Baranov, D. S., Brun, Ch., Yashina, L. V., Bozhko, S. I., Cren, T., Pogosov, W. V., Roditchev, D.
Publikováno v:
Appl. Phys. Lett. 111, 251601 (2017)
The influence of individual impurities of Fe on the electronic properties of topological insulator Bi$_2$Se$_3$ is studied by Scanning Tunneling Microscopy. The microscope tip is used in order to remotely charge/discharge Fe impurities. The charging
Externí odkaz:
http://arxiv.org/abs/1712.00915
Autor:
Vinnikov, L. Ya., Veshchunov, I. S., Grebenchuk, S. Yu., Baranov, D. S., Stolyarov, V. S., Dremov, V. V., Zhou, N., Shi, Z. X., Xu, X. F., Pyon, S., Sun, Yue, Jiao, Wenhe, Cao, Guanghan, Golubov, A. A., Roditchev, D., Buzdin, A. I., Tamegai, T.
Using low-temperature Magnetic Force Microscopy (MFM) we provide direct experimental evidence for spontaneous vortex phase (SVP) formation in EuFe$_2$(As$_{0.79}$P$_{0.21}$)$_2$ single crystal with the superconducting $T^{\rm 0}_{\rm SC}=23.6$~K and
Externí odkaz:
http://arxiv.org/abs/1709.09802
Autor:
Charaev, I., Silbernagel, T., Bachowsky, B., Kuzmin, A., Doerner, S., Ilin, K., Semenov, A., Roditchev, D., Vodolazov, D. Yu., Siegel, M.
Publikováno v:
Phys. Rev. B 96, 184517 (2017)
We show that narrow superconducting strips in superconducting (S) and normal (N) states are universally described by the model presenting them as lateral NSN proximity systems in which the superconducting central band is sandwiched between damaged ed
Externí odkaz:
http://arxiv.org/abs/1708.04883
Autor:
Charaev, I., Silbernagel, T., Bachowsky, B., Kuzmin, A., Doerner, S., Ilin, K., Semenov, A., Roditchev, D., Vodolazov, D. Yu., Siegel, M.
We performed comparative experimental investigation of superconducting NbN nanowires which were prepared by means of positive-and negative electron-beam lithography with the same positive tone Poly-methyl-methacrylate (PMMA) resist. We show that nano
Externí odkaz:
http://arxiv.org/abs/1706.01289