Zobrazeno 1 - 10
of 630
pro vyhledávání: '"Jandl S"'
Autor:
Balli, M., Mansouri, S., Fournier, P., Jandl, S., Truong, K. D., Khlifa, S. Khadechi-Haj, de Rango, P., Fruchart, D., Kedous-Lebouc, A.
In this paper, we mainly focus on the magnetic and magnetocaloric features of La2-xDyxNiMnO6 double perovskites. Their magnetocaloric properties are investigated in terms of both entropy and adiabatic temperature changes. In contrast to early works,
Externí odkaz:
http://arxiv.org/abs/1912.06932
It is known that orthorhombic RMnO3 multiferroics (R = magnetic rare earth) with low symmetry exhibit a large rotating magnetocaloric effect because of their strong magnetocrystalline anisotropy. In this paper, we demonstrate that the hexagonal ErMnO
Externí odkaz:
http://arxiv.org/abs/1811.05847
Autor:
Mansouri, S., Jandl, S., Balli, M., Fournier, P., Roberge, B., Orlita, M., Zobkalo, I. A., Barilo, S. N., Shiryaev, S. V.
Raman and infrared spectroscopies are used as local probes to study the dynamics of the Nd-O bonds in the weakly multiferroic NdMn2O5 system. The temperature dependence of selected Raman excitations reveals the splitting of the Nd-O bonds in NdMn2O5.
Externí odkaz:
http://arxiv.org/abs/1810.07871
In this paper, we report on the magnetocaloric properties of some selected multiferroic oxides, namely HoMn2O5 and La2(Ni,Co)MnO6 compounds which exhibit transition points from 10K up to almost room temperature. In order to avoid grain boundary effec
Externí odkaz:
http://arxiv.org/abs/1608.02809
Solid state-refrigerants have generated worldwide interest owing to their growing potential for use in efficient and green cooling devices. Caloric effects could be obtained by manipulating their degrees of freedom such as magnetization, electric pol
Externí odkaz:
http://arxiv.org/abs/1608.02669
Publikováno v:
Journal of Physics:Condensed Matter 23, 052502 (2011)
The temperature dependence of phonon excitations and the presence of spin phonon coupling in polycrystalline Pr2NiMnO6 samples were studied using micro-Raman spectroscopy and magnetometry. Magnetic properties show a single ferromagnetic-to-paramagnet
Externí odkaz:
http://arxiv.org/abs/1101.2805
In the quest for novel magnetoelectric materials, we have grown, stabilized and explored the properties of La3BAlMnO9 (B = Co or Mn) thin films. In this paper, we report the influence of the growth parameters that promote B/Al/Mn ordering in the pseu
Externí odkaz:
http://arxiv.org/abs/1002.4347
Despite the great technological and scientific importance, a well-controlled coupled behavior in magnetoelectric multiferroic materials at room temperature remains challenging. We demonstrate that the self-ordered A2BBO6 (e.g., A = La, B = Mn, and B
Externí odkaz:
http://arxiv.org/abs/0912.3292
We report the influence of Ni/Mn ordering on the spin-phonon coupling in multifunctional La2NiMnO6. Three types of films with different levels of structural order, including long-range Ni/Mn cation order, cation disorder, and an admixture of the orde
Externí odkaz:
http://arxiv.org/abs/0910.1108
We report and compare the structural, magnetic, and optical properties of ordered La2NiMnO6 thin films and its disordered LaNi0.5Mn0.5O3 counterpart. An x-ray diffraction study reveals that the B-site Ni/Mn ordering induces additional XRD reflections
Externí odkaz:
http://arxiv.org/abs/0905.3550