Zobrazeno 1 - 10
of 62
pro vyhledávání: '"S. Šafrata"'
Autor:
A. B. Lazarev, V. G. Zinov, V. N. Duginov, I. A. Gaganov, I. I. Gurevich, S. Kapusta, V. S. Roganov, A. N. Ponomarev, V. Yu. Pomjakushin, V. G. Olshevsky, V. H. Dodokhov, Josef Šebek, V. G. Grebinnik, Vyacheslav G. Storchak, B. F. Kirillov, A. V. Pirogov, V. A. Suetin, B. A. Nikolsky, S. N. Shilov, V. A. Zhukov, S. Šafrata, E. P. Krasnoperov
Publikováno v:
Hyperfine Interactions. 65:1167-1174
After conversion of the LNP JINR phasotron new opportunities have been opened for μSR-research. A new round of investigations has begun since 1987. In this paper we present the summary of the results achieved and give some prospects for future inves
Autor:
S. Šafrata, V. G. Olshevsky, T. Hanslik, V. Yu. Pomjakushin, B. F. Kirillov, V. N. Sumarokov, A. B. Lazarev, V. G. Grebinnik, S. Kapusta, A. V. Pirogov, V. N. Duginov, V. A. Zhukov, Daniel Niznansky, A. M. Brjazkalo, I. K. Ageenkova, B. A. Nikolsky, S. N. Shilov, Josef Šebek, A. N. Ponomarev, H. Šíchová, A. G. Chistov
Publikováno v:
Hyperfine Interactions. 63:117-122
Autor:
V. G. Olshevsky, V. Valvoda, A. N. Ponomarev, A. V. Pirogov, I. I. Gurevich, Josef Šebek, V. Y. Pomjakushin, V. A. Suetin, A. B. Lazarev, S. Kapusta, V. N. Duginov, V. G. Grebinnik, B. F. Kirillov, B. A. Nikolsky, S. N. Shilov, J. Burianek, S. Šafrata, V. A. Zhukov
Publikováno v:
Hyperfine Interactions. 61:1081-1084
Autor:
V. Valvoda, Josef Šebek, J. Šrámek, J. Stehno, Vladimír Sechovský, S. Šafrata, Ladislav Havela, Pavel Svoboda, Z. Smetana
Publikováno v:
Czechoslovak Journal of Physics. 37:660-664
Publikováno v:
Journal of Low Temperature Physics. 74:503-517
We present the measurement of dc magnetization curve of three samples of high-T c superconductors in relatively low magnetic field of ±50 mT and at temperaturesT=4.2 K andT=77 K by a SQUID susceptometer. The samples were polycrystalline YBa2Cu3O7−
Publikováno v:
Journal of Low Temperature Physics. 69:313-323
We report the observation of the dc and ac Josephson effect and quasiparticle tunnelling in the high-temperature superconductor YBaCuO. The observation is made at 4.2 K. These effects were observed in a junction made by a niobium tip pressed against
Publikováno v:
Journal of Low Temperature Physics. 72:319-343
We describe an apparatus allowing the observation of the NMR static longitudinal component of nuclear magnetizationM z by a SQUID at low magnetic fields and atT=4.2 K in Plexiglas, Teflon, and CaF2. The higher order NMR Larmor lines at 2f 0, 3f 0, an
Autor:
A. Tříska, M. Nevřiva, J. Růžička, S. Šafrata, Pavel Boháček, F. Novotný, T. Těthal, E. Pollert, B. Trunda, J. Prachařová, M. Odehnal
Publikováno v:
Czechoslovak Journal of Physics. 38:461-464
Publikováno v:
Czechoslovak Journal of Physics. 37:653-656
Publikováno v:
Journal of Low Temperature Physics. 72:283-289
The V-I characteristics of a microwave-irradiated Josephson junction based on a YBa2Cu3O7-x-Nb point contact are investigated at 4.2 K and at 9.5, 18.5, and 37 GHz. Shapiro steps, the inverse ac Josephson effect, chaos, and low-frequency noise are ob