Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Costa, M. M. R."'
Autor:
Mota, D. A., Almeida, A., Rodrigues, V. H., Costa, M. M. R., Tavares, P., Bouvier, P., Guennou, M., Kreisel, J., Moreira, J. Agostinho
We report a high-pressure study of orthorhombic rare-earth manganites AMnO3 using Raman scattering (for A = Pr, Nd, Sm, Eu, Tb and Dy) and synchrotron X-ray diffraction (for A = Pr, Sm, Eu, and Dy). In all cases, a structural and insulator-to-metal t
Externí odkaz:
http://arxiv.org/abs/1402.6987
Autor:
Moreira, J. Agostinho, Almeida, A., Oliveira, J., Rodrigues, V. H., Costa, M. M. R., Tavares, P. B., Bouvier, P., Guennou, M., Kreisel, J.
We present a study of the effect of very high pressure on the orthorhombic perovskite GdMnO3 by Raman spectroscopy and synchrotron x-ray diffraction up to 53.2 GPa. The experimental results yield a structural and insulator-to-metal phase transition c
Externí odkaz:
http://arxiv.org/abs/1111.4855
Autor:
Moreira, J. Agostinho, Almeida, A., Ferreira, W. S., Araújo, J. P., Pereira, A. M., Chaves, M. R., Costa, M. M. R., Khomchenko, V. A., Kreisel, J., Chernyshov, D., Tavares, S. M. F. Vilela And P. B.
This work reports an experimental investigation of the magneto-elastic coupling and polarization character of magnetic phases of the orthorhombic Eu1-xYxMnO3 system at low temperatures. The temperature dependence of the polarization reversal curves c
Externí odkaz:
http://arxiv.org/abs/1005.4841
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 220, Iss 4, Pp 620-622 (2005)
Externí odkaz:
https://doaj.org/article/7cfcef0d6be7488ca27b0e8a5b957946
Autor:
Rodrigues V. H., Costa M. M. R., Paixäo J. A., Santos M. L., Agostinho Moreira J., Chaves M. R., Almeida A., Klöpperpieper A.
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 219, Iss 1-4, Pp 480-482 (2004)
Externí odkaz:
https://doaj.org/article/364b3e46d1524607936d5f32a5034e48
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 221, Iss 1-4, Pp 157-158 (2006)
Externí odkaz:
https://doaj.org/article/823409e386904dc6bb6d253ddc6cb51a
Autor:
Rodrigues V. H., Costa M. M. R., Klöpperpieper A., Chaves M. R., Almeida A., Agostinho Moreira J.
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 220, Iss 3, Pp 363-364 (2005)
C10H24BrN2NaO5, monoclinic, C121 (no. 5), a = 9.108(2) Å, b = 6.531(1) Å, c = 13.306(2) Å, β = 105.11(2)°, V = 764.2 Å3, Z = 2, Rgt(F) = 0.032, wRref(F2) = 0.092, T = 293 K.
Externí odkaz:
https://doaj.org/article/f899319bb69d4d6199c23c0d14ce1ec8
Autor:
Andrade L. C. R., Costa M. M. R., Paixäo J. A., Agostinho Moreira J., Santos M. L., Chaves M. R., Almeida A.
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 217, Iss 1, Pp 433-434 (2002)
Externí odkaz:
https://doaj.org/article/8809b7b03caf461e92ceed56a38df4b5
Autor:
Andrade L. C. R., Costa M. M. R., Paixāo J. A., Santos M. L., Agostinho Moreira J., Chaves M. R., Almeida A.
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 217, Iss 1, Pp 537-538 (2002)
Externí odkaz:
https://doaj.org/article/f289335e9c464b188bdb20f475fc8524
Autor:
Andrade L. C. R., Costa M. M. R., Paixāo J. A., Santos M. L., Moreira J. Agostinho, Chaves M. R., Almeida A.
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 217, Iss 1, Pp 77-78 (2002)
Externí odkaz:
https://doaj.org/article/f0cb730f6abf4867a7fd3969e39db3f5