Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Denis Gokhfeld"'
Autor:
Michael Rudolf Koblischka, Anjela Koblischka-Veneva, Quentin Nouailhetas, Ghazi Hajiri, Kévin Berger, Bruno Douine, Denis Gokhfeld
Publikováno v:
Materials, Vol 15, Iss 6, p 2303 (2022)
Superconducting YBa2Cu3Oy (YBCO) foams were prepared using commercial open-cell, polyurethane foams as starting material to form ceramic Y2BaCuO5 foams which are then converted into superconducting YBCO by using the infiltration growth process. For m
Externí odkaz:
https://doaj.org/article/ffa572da4f4e4fe382fc3a4f4db78aad
Autor:
Michael R. Koblischka, Sugali Pavan Kumar Naik, Anjela Koblischka-Veneva, Masato Murakami, Denis Gokhfeld, Eddula Sudhakar Reddy, Georg J. Schmitz
Publikováno v:
Materials, Vol 12, Iss 6, p 853 (2019)
Superconducting foams of YBa2Cu3Oy (YBCO) are proposed as trapped field magnets or supermagnets. The foams with an open-porous structure are light-weight, mechanically strong and can be prepared in large sample sizes. The trapped field distributions
Externí odkaz:
https://doaj.org/article/0dc133e947fc43d7b6a6f7d1e214ed9c
Autor:
Michael R. Koblischka, Anjela Koblischka-Veneva, Denis Gokhfeld, S. Pavan Kumar Naik, Quentin Nouailhetas, Kevin Berger, Bruno Douine
Publikováno v:
IEEE Transactions on Applied Superconductivity. 32:1-5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a67d5b76f8d25ba6518258a813e6b1fc
https://doi.org/10.1109/tasc.2022.3147734
https://doi.org/10.1109/tasc.2022.3147734
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 35:283-290
The Monte Carlo method has been used to calculate the trapped magnetic field in superconducting plates with holes. The mechanism of flux pinning on the holes is implemented with special subprocesses added to the algorithm: vortex capture and emission
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8700c8942b728049315534f6a41f0a85
https://doi.org/10.1007/s10948-021-06067-7
https://doi.org/10.1007/s10948-021-06067-7
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 34:2537-2543
Superconducting and paramagnetic contributions to the magnetization of polycrystalline Y1−xHoxBa2Cu3O7−δ samples were investigated. The superconductivity is responsible for a partial screening of magnetic ions from an external magnetic field and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::733c67fd9c62834be12e04caf83d768c
https://doi.org/10.1007/s10948-021-05954-3
https://doi.org/10.1007/s10948-021-05954-3
Publikováno v:
Russian Journal of Physical Chemistry A. 95:1165-1168
Energy dispersive X-ray spectroscopy and scanning electron microscopy are used to study La2CuO4–La1.56Sr0.44CuO4 composites with different annealing times. Maps of the strontium distribution for such systems are calculated and compared to experimen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c1be1b101a844270ea42962429ca2f4
https://doi.org/10.1134/s0036024421060066
https://doi.org/10.1134/s0036024421060066
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 34:1067-1075
Granular high-temperature superconductors (HTSs) exhibit magnetotransport properties, including the clockwise magnetoresistance hysteresis. The hysteresis is explained by the concept of an effective field in the subsystem of grain boundaries, where t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::692a24ea6860b97858c499d7c488a407
https://doi.org/10.1007/s10948-021-05812-2
https://doi.org/10.1007/s10948-021-05812-2
Autor:
Denis Gokhfeld, D. A. Balaev
Publikováno v:
Physics of the Solid State. 62:1145-1149
The origin of the low magnetization anisotropy of the textured bulk samples consisting of highly anisotropic (Bi,Pb)2Sr2Ca2Cu3Ox (Bi-2223) high-temperature superconductor crystallites has been investigated. It has been established that the observed a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c096fc0f9b3948d844c2899f151dc87a
https://doi.org/10.1134/s1063783420070069
https://doi.org/10.1134/s1063783420070069
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d91741a1ad46f3113e9a2cebaa7c2844
https://doi.org/10.2139/ssrn.4123466
https://doi.org/10.2139/ssrn.4123466
Autor:
E. V. Altynbaev, N. Martin, Denis Gokhfeld, A. A. Bykov, S. V. Semenov, K. Yu Terent’ev, S. V. Grigoriev
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 32:3797-3802
The superconducting La1.85Sr0.15CuO4 ceramics has been studied by small angle neutron scattering, magnetization measurements, and scanning electron microscopy. Experiments have shown that the intensity of the magnetic scattering is 2–3 times higher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5874cce9ab98f1545f5389f4c9d401c9
https://doi.org/10.1007/s10948-019-05195-5
https://doi.org/10.1007/s10948-019-05195-5