Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Passos W"'
Publikováno v:
Physics Letters A 291, 311 (2001)
A comparative study of the magnetic remanence exhibited by tridimensional Josephson junction arrays in response to an excitation with an AC magnetic field is presented. The observed temperature behavior of the remanence curves for disordered arrays f
Externí odkaz:
http://arxiv.org/abs/cond-mat/0111271
Autor:
Lopez, J., Lisboa-Filho, P. N., Passos, W. A. C., Ortiz, W. A., Araujo-Moreira, F. M., de Lima, O. F., Schaniel, D., Ghosh, K.
Publikováno v:
Phys. Rev. B 63 (22) 224422 (9 pages) 2001
We have carried out a systematic magnetic relaxation study, measured after applying and switching off a 5 T magnetic field to polycrystalline samples of La0.5Ca0.5MnO3 and Nd0.5Sr0.5MnO3. The long time logarithmic relaxation rate (LTLRR), decreased f
Externí odkaz:
http://arxiv.org/abs/cond-mat/0103305
In this paper we determine the magnetic field dependence of the critical current of a tridimensional disordered Josephson junction array (3D-DJJA). A contactless configuration, employing measurements of the AC-susceptibility, is used to evaluate the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0011245
In this contribution we present a simple and effective procedure to determine the average critical current of a tridimensional disordered Josephson junction array (3D-DJJA). Using a contactless configuration we evaluate the average critical current a
Externí odkaz:
http://arxiv.org/abs/cond-mat/0011230
Publikováno v:
Journal of Magnetism and Magnetic Materials 226-230, 507 (2001)
We reported a systematic change in the average magnetic relaxation rate, after the application and removal of a 5 T magnetic field, in a polycrystalline sample of La0.5Ca0.5MnO3. Magnetic relaxation measurements and magnetization versus field curves
Externí odkaz:
http://arxiv.org/abs/cond-mat/0004460
We present an extensive study of the time dependence of the magnetization in a polycrystalline and low temperature charge ordered La0.5Ca0.5MnO3 sample. After application and removal of a 5 T magnetic field, a systematic variation of the magnetic rel
Externí odkaz:
http://arxiv.org/abs/cond-mat/0003369
In this work we study the remanent magnetization exhibited by tridimensional disordered high-Tc Josephson junction arrays excited by an AC magnetic field. The effect, as predicted by numerical simulations and previously verified for a low-Tc array of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0002280
In this work we study the magnetic remanence exhibited by Josephson junction arrays in response to an excitation with an AC magnetic field. The effect, predicted by numerical simulations to occur in a range of temperatures, is clearly seen in our tri
Externí odkaz:
http://arxiv.org/abs/cond-mat/9910118
Publikováno v:
Check List, Vol 6, Iss 4, Pp 587-588 (2010)
During a field trip to the town of El Carmen in de Department of Santa Cruz we captured 108 specimens ofPhlebotominae (Diptera: Psychodidae). Among the specimens examined, we found five species of sand fly comprising fourgenera. Four species (Lutzomy
Externí odkaz:
https://doaj.org/article/43e5783f2cae4d9b92a30c57e2849632
Autor:
Bhattacharya, P., Oh, J. E., Singh, J., Biswas, D., Clarke, R., Passos, W. Dos, Merlin, R., Mestres, N., Chang, K. H., Gibala, R.
Publikováno v:
Journal of Applied Physics; 4/15/1990, Vol. 67 Issue 8, p3700, 6p, 3 Black and White Photographs, 7 Graphs