Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Rotaru, G. M."'
Autor:
Cervellino, A., Gvasaliya, S. N., Roessli, B., Rotaru, G. M., Cowley, R. A., Lushnikov, S. G., Shaplygina, T. A., Bouchenoire, L.
The structure of BaMg1/3Ta2/3O3 (BMT) has been studied using X-ray scattering. The phonons have been measured and the results are similar to those of other materials with the perovskite structure such as PbMg1/3Nb2/3O3 (PMN). The acoustic and lowest
Externí odkaz:
http://arxiv.org/abs/1204.4273
Autor:
Cervellino, A., Gvasaliya, S. N., Roessli, B., Rotaru, G. M., Cowley, R. A., Lushnikov, S. G., Shaplygina, T. A., Bossak, A., Chernyshov, D.
A quite unusual diffuse scattering phenomenology was observed in the single-crystal X-ray diffraction pattern of cubic perovskite BMT ($\mathrm{BaMg}_{1/3}\mathrm{Ta}_{2/3}\mathrm{O}_3$). The intensity of the scattering is parametrized as a set of cu
Externí odkaz:
http://arxiv.org/abs/1204.4303
Autor:
Rotaru, G -M, Padmanabhan, B, Gvasaliya, S N, Roessli, B, Strassle, Th, Cowley, R A, Lushnikov, S G, Klotz, S
We report measurements of the evolution of the diffuse scattering in a single crystal PbMg1/3Nb2/3O3 as a function of hydrostatic pressure. Upon applying pressure the diffuse scattering intensity decreases and is suppressed at about 3 GPa, while no c
Externí odkaz:
http://arxiv.org/abs/0910.2108
Autor:
Cervellino, A., Gvasaliya, S. N., Zaharko, O., Roessli, B., Rotaru, G. M., Cowley, R. A., Lushnikov, S. G., Shaplygina, T. A., Fernandez-Diaz, M. -T.
The relaxor ferroelectric PbMg_1/3Ta_2/3O_3 was studied by single-crystal neutron and synchrotron x-ray diffraction and its detailed atomic structure has been modeled in terms of static Pb-displacements that lead to the formation of polar nanoregions
Externí odkaz:
http://arxiv.org/abs/0908.2920
Autor:
Rotaru, G. -M., Roessli, B., Amato, A., Gvasaliya, S. N., Mudry, C., Lushnikov, S. G., Shaplygina, T. A.
Publikováno v:
Phys. Rev. B 79, 184430 (2009)
We have investigated the magnetic ground-state of the multiferroic relaxor ferroelectric \pfn with $\mu$SR spectroscopy and neutron scattering. We find that a transition to a partially disordered phase occurs below T=20 K that coexists with long-rang
Externí odkaz:
http://arxiv.org/abs/0901.1816
We show that the neutron diffuse scattering in relaxor ferroelectric (1-x)PbZn$_{1/3}$Nb$_{2/3}$O$_{3}$ - x PbTiO$_{3}$ (x=0.07) consists of two components. The first component is strictly elastic but extended in q-space and grows below 600 K. The se
Externí odkaz:
http://arxiv.org/abs/0805.2908
Publikováno v:
In Tribology International September 2015 89:119-127
Autor:
Derler, S., Rotaru, G.-M., Ke, W., Issawi-Frischknecht, L. El, Kellenberger, P., Scheel-Sailer, A., Rossi, R.M.
Publikováno v:
In Journal of the Mechanical Behavior of Biomedical Materials October 2014 38:114-125
Autor:
Rotaru, G.-M., Pille, D., Lehmeier, F.K., Stämpfli, R., Scheel-Sailer, A., Rossi, R.M., Derler, S.
Publikováno v:
In Tribology International September 2013 65:91-96
Publikováno v:
In Tribology International July 2013 63:14-20