Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Gonçalves J. N."'
Autor:
Gonçalves J. N., Amaral V. S., Correia J. G., Stroppa A., Fenta A. S., Baghizadeh A., Picozzi S.
Publikováno v:
EPJ Web of Conferences, Vol 75, p 09002 (2014)
We model the ferroelectric and paraelectric phases in the YMnO3 and YMn2O5, compounds with discussion of the hyperfine parameters at the atomic nuclei: electric field gradient and magnetic hyperfine field, using first-principles density functional th
Externí odkaz:
https://doaj.org/article/d1b095a381274679b97499a7a8357c1e
Autor:
Zyabkin, D. V., Gunnlaugsson, H. P., Goncalves, J. N., Bharuth-Ram, K., Qi, B., Unzueta, I., Naidoo, D., Mantovan, R., Masenda, H., Olafsson, S., Peters, G., Schell, J., Vetter, U., Dimitrova, A., Krischok, S., Schaaf, P.
In this study we report on the results from emission $^{57}$Fe M${\"o}$ssbauer Spectroscopy experiments, using dilute $^{57}$Mn implantation into pristine (TiO$_2$) and hydrogenated anatase held at temperatures between 300-700 K. Results of the elect
Externí odkaz:
http://arxiv.org/abs/2003.07600
Publikováno v:
IEEE Transactions on Magnetics, Vol. 50, No. 11, 1301104 (2014)
Heusler alloys are promising for several applications, including magnetic refrigeration, due to high magnetocaloric and magnetovolume effects. One way to optimize this potential is by increasing the magnetovolume effect. Using density functional theo
Externí odkaz:
http://arxiv.org/abs/1612.09133
Autor:
Gonçalves, J. N., Amaral, V. S., Correia, J. G., Lopes, A. M. L., Araújo, J. P., Tavares, P. B.
Publikováno v:
J. Phys.: Condens. Matter 26 (2014) 215401
We report perturbed angular correlation measurements with 111mCd/111Cd and 111In/111Cd probes, at the ISOLDE-CERN facility, in the manganite compounds BaMnO3 , with the 6H and 15R polymorphs, and SrMnO3 , with the 4H polymorph. The electric field gra
Externí odkaz:
http://arxiv.org/abs/1612.07301
The magnetic properties tuning and volume dependence in the series of quaternary full Heusler alloys with formula Co2Cr1-xYGa (Y = Ti, V, Mn, Fe, Co, Ni) were studied with a detailed first-principles exploration. We employ the density functional KKR
Externí odkaz:
http://arxiv.org/abs/1612.07071
Publikováno v:
Phys. Rev. B 83, 104421 (2011)
The MnAs compound shows a first-order transition at T$_C\approx42$ C, and a second-order transition at T$_t\approx120$ C. The first-order transition, with structural (hexagonal-orthorhombic), magnetic (FM-PM) and electrical conductivity changes, is a
Externí odkaz:
http://arxiv.org/abs/1402.0352
Autor:
Gonçalves, J. N., Stroppa, A., Correia, J. G., Butz, T., Picozzi, S., Fenta, A. S., Amaral, V. S.
Publikováno v:
Phys. Rev. B 86, 035145 (2012)
The hyperfine interaction between the quadrupole moment of atomic nuclei and the electric field gradient (EFG) provides information on the electronic charge distribution close to a given atomic site. In ferroelectric materials, the loss of inversion
Externí odkaz:
http://arxiv.org/abs/1203.1306
Akademický článek
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Autor:
Lopes, A M L, Schell, J H, Carbonari, A W, Amaral, V S, Araujo, J P, Lupascu, D C, Dang, T T, Yap, I C J, Burimova, A, Correia, J G, Gonçalves, J N, Kholkin, A L, Lourenço, A A, Moreira, R P, Oliveira, G P, Cesário, A, Sousa, P A, Silva, E L, Lekshmi, N, Cabrera-Pasca, G A, Rocha-Rodrigues, P, Sales, T S N, Santos, S S M, Silva, M R, Saxena, R N, Miranda Filho, A A, Lima, N P, Petrilli, H M, Assali, L V C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::52e742edba5a22dae27fb66c5fee1149
http://cds.cern.ch/record/2845997
http://cds.cern.ch/record/2845997
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
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K zobrazení výsledku je třeba se přihlásit.