Zobrazeno 1 - 10
of 256
pro vyhledávání: '"Araujo-Moreira, F. M."'
Autor:
Sergeenkov, S., Cordova, C., Cichetto Jr, L., de Lima, O. F., Longo, E., Araujo-Moreira, F. M., Furtado, C.
We present a comparative study on the influence of applied magnetic field on the resistance of $C_{1-x}Co_x$ thin films (with $x=0.1$, $0.15$ and $0.2$) grown on $Si$ substrate by pulsed laser deposition technique. It is found that the behavior of ma
Externí odkaz:
http://arxiv.org/abs/1803.02064
Autor:
Sergeenkov, S., Cordova, C., Ari-Gur, P., Koledov, V. V., Kamantsev, A. P., Shavrov, V. G., Mashirov, A. V., Gomes, A. M., Takeuchi, A. Y., de Lima, O. F., Araujo-Moreira, F. M.
Publikováno v:
Philosophical Magazine Letters 96, 375 (2016)
We present our recent results on temperature behaviour of magnetization observed in Ni_47Mn_39In_14 Heusler alloys. Three regions can be distinguished in the M-T diagram: (I) low temperature martensitic phase (with the Curie temperature T_CM = 140 K)
Externí odkaz:
http://arxiv.org/abs/1708.08368
Publikováno v:
AIP Advances 7, 025005 (2017)
We report the structural and transport properties of LaNiO3 thin films prepared by pulsed laser deposition technique. To understand the effects of film thickness, lattice mismatch and grain size on transport properties, various oriented substrates we
Externí odkaz:
http://arxiv.org/abs/1708.08352
Publikováno v:
Journal of Physics Condensed Matter 27, 485307 (2015)
We discuss the origin of the temperature dependence of resistivity observed in highly oriented LaNiO_3 thin films (of thickness d) grown on SrTiO_3 substrate by a pulsed laser deposition technique. All the experimental data are found to collapse into
Externí odkaz:
http://arxiv.org/abs/1512.08812
Publikováno v:
JETP Letters 102, 383 (2015)
We present measurements of resistivity $\rho$ in highly oriented $LaNiO_3$ films grown on $LaAlO_3$ substrates by using a pulsed laser deposition technique. The experimental data are found to follow a universal $\rho (T) \propto T^{3/2}$ dependence f
Externí odkaz:
http://arxiv.org/abs/1508.04063
Autor:
Sergeenkov, S., Araujo-Moreira, F. M.
Publikováno v:
JETP Letters 98, 88 (2013)
By introducing a strain rate generated pseudo-electric field, we discuss a magnetic response of a plastically deformed graphene. Our results demonstrate the appearance of dislocation induced paramagnetic moment in a zero applied magnetic field. More
Externí odkaz:
http://arxiv.org/abs/1307.4946
Autor:
Sergeenkov, S., Araujo-Moreira, F. M.
Publikováno v:
JETP Letters 94, 845 (2011)
An analog of the diaelastic effect is predicted to occur in a small Josephson contact with Josephson vortices manifesting itself as magnetic field induced softening of the contact shear modulus C(T,H). In addition to Fraunhofer type field oscillation
Externí odkaz:
http://arxiv.org/abs/1203.0244
Autor:
Sergeenkov, S., Cichetto, L. Jr., Rivera, V. A. G., Stari, C., Marega, E., Cardoso, C. A., Araujo-Moreira, F. M.
Publikováno v:
JETP Letters 91, 30 (2010)
By using a highly sensitive homemade AC magnetic susceptibility technique, the magnetic flux penetration has been measured in YBa_2Cu_3O_7 single crystals with giant screw dislocations (having the structure of the Archimedean spirals) exhibiting a=3
Externí odkaz:
http://arxiv.org/abs/1008.4723
Publikováno v:
Journal of Applied Physics 107, 096102 (2010)
We report on some unusual behavior of the measured current-voltage characteristics (CVC) in artificially prepared two-dimensional unshunted array of overdamped Nb-AlO_x-Nb Josephson junctions. The obtained nonlinear CVC are found to exhibit a pronoun
Externí odkaz:
http://arxiv.org/abs/1008.4513
Publikováno v:
Physica C 470, 1946 (2010)
A pronounced resonance-like structure has been observed in the current dependence of AC susceptibility for two-dimensional array of unshunted Nb-AlOx-Nb Josephson junctions. Using a single-plaquette approximation, we were able to successfully fit our
Externí odkaz:
http://arxiv.org/abs/1008.4065