Zobrazeno 1 - 10
of 321
pro vyhledávání: '"Bobrov N"'
Autor:
Bobrov, N. L.
The $Ta-Cu$ and $NbS{e}_{2}-Cu$ heterocontacts have been studied. For $Ta-Cu$ contacts the theoretical estimation of the value of $\delta$-functional barrier at the boundary arising due to the mismatch of Fermi parameters of the contacting metals was
Externí odkaz:
http://arxiv.org/abs/2306.02441
Autor:
Bobrov, N. L.
Publikováno v:
JETPr, 160(1), 73, (2021); JETPe, 133(1), ??, (2021)
The application of inhomogeneous niobium point-contacts in the superconducting stata for reconstructing the electron-phonon interaction function is considered. The method is based on the use of the nonlinearity of current-voltage curve, which is due
Externí odkaz:
http://arxiv.org/abs/2109.01344
Autor:
Bobrov, N. L.
Publikováno v:
UFNe, 63(11), 1072, (2020); UFNr, 190(11), 1143, (2020)
The recovering procedure of the electron-phonon interaction (EPI) functions from the additional nonlinearities of the current-voltage curve ($I-V$ curve) of point contacts associated with an excess current is considered. The approach proposed takes i
Externí odkaz:
http://arxiv.org/abs/2109.00806
Autor:
Bobrov, N. L.
The experimentally observed nonlinearities of the current-voltage characteristics (CVCs) of tantalum-based point homo- and hetero- contacts in both normal and superconducting states related to electron-phonon interaction (EPI) were analyzed. It was t
Externí odkaz:
http://arxiv.org/abs/1906.04380
Autor:
Yanson, I. K., Fisun, V. V., Rybaltchenko, L. F., Bobrov, N. L., Obolenskii, M. A., Bondarenko, A. V.
Publikováno v:
Fiz. Nizk. Temp., 18, 586 (1992)
A polarity-dependent reversible change in the current-voltage characteristics between states corresponding to different values of the excess current Iexc is observed for bias voltages of several hundred millivolts in YBaCuO-Ag point contacts in the c
Externí odkaz:
http://arxiv.org/abs/1706.06073
Publikováno v:
Physica B, 204, 83 (1995)
For metallic point contacts with Be and Al the magnetoquantum oscillations in the contact resistance have been investigated as a function of the applied voltage over the contact. For one set of point contacts the oscillation amplitude is found to var
Externí odkaz:
http://arxiv.org/abs/1705.06254
Publikováno v:
Phys. Rev. B, 48, 13904 (1993)
The conductance curves of point-contact tunnel junctions between Ag and $\rm Ba_{1-x}K_xBiO_3$ ($x\simeq 0.4$) reveal a BCS behavior with low leakage current at zero voltage and some broadening of the superconducting-gap structure. In the energy rang
Externí odkaz:
http://arxiv.org/abs/1704.00283
Publikováno v:
Physica C, 235-240, 1873 (1994)
The superconducting energy gap of $\rm Ba_{1-x}K_xBiO_3$ has been measured by tunneling. Despite the fact that the sample was macroscopically single phase with very sharp superconducting transition $T_c$ at 32~$K$, some of the measured tunnel junctio
Externí odkaz:
http://arxiv.org/abs/1704.00285
Autor:
Verkin, B. I., Banduryan, B. B., Barylnik, A. S., Batrak, A. G., Bobrov, N. L., Braude, I. S., Gal'chinetskaya, Yu. L., Gaiduk, A. L., Gurevich, A. M., Demirskii, V. V., Dotsenko, V. I., Eropkin, V. I., Zherlitsyn, S. V., Isakina, A. P., Kislyak, I. F., Konovodchenko, V. A., Lavrent'ev, F. F., Litinskaya, L. S., Mikheev, V. A., Momot, V. I., Natsik, V. D., Nechiporenko, I. N., Panfilov, A. S., Pokhil, Yu. A., Prokhvatilov, A. I., Rudavskii, E. Ya., Rybal'chenko, L. F., Svechkarev, I. V., Stepanenko, A. M., Strzhemechnyi, M. A., Fedorchenko, L. I., Fil', V. D., Fisun, V. V., Khomenko, V. G., Chagovets, V. K., Sheshin, G. A., Yanson, I. K., Sergienko, V. V.
Publikováno v:
Fiz. Nizk. Temp., 13, 771 (1987); (Sov. J. Low Temp. Phys., 13, 442 (1987)
The structure and physical properties of superconducting compounds Y(La)-Ba(Sr)-Cu-O are studied, the compounds being prepared by the method of cryogenic dispersion of a charge consisting of premix oxides and carbonates. Electrical conductivity and c
Externí odkaz:
http://arxiv.org/abs/1703.08707
Publikováno v:
Fiz. Nizk. Temp., 13, 973 (1987); (Sov. J. Low Temp. Phys., 13, 501 (1987)
Measurement of the current-voltage characteristics of point contacts makes it possible to study the properties of individual crystallites in a superconducting ceramic. The critical current density in the superconducting regions of the ceramic $\rm La
Externí odkaz:
http://arxiv.org/abs/1703.08708