Zobrazeno 1 - 10
of 42
pro vyhledávání: '"H. Aliaga"'
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Studium Veritatis. 13:189-220
El presente trabajo se desarrolló en la empresa Agropecuaria Inka Cuy S. A. C., ubicada en el kilómetro 50 de la carretera Lima Canta, distrito de Santa Rosa de Quives, provincia de Canta, Región Lima, a una altitud de 1,000 m.s.n.m., durante ener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2ae221cf4539d3141dd7bd021704ee3
https://doi.org/10.35626/sv.19.2015.56
https://doi.org/10.35626/sv.19.2015.56
Publikováno v:
Studium Veritatis. 11:441-462
El presente trabajo se desarrolló en los años 2005 y 2006 en la Granja Agropecuaria de Yauris de la U.N.C.P., ubicada en el distrito de El Tambo, provincia de Huancayo, región Junín, a una altitud de 3 280 m.s.n.m. El objetivo fue evaluar los par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9cbf92915b0f4e5dc2cf6b614ef58b2
https://doi.org/10.35626/sv.17.2013.105
https://doi.org/10.35626/sv.17.2013.105
Publikováno v:
Physica B: Condensed Matter. 320:47-50
Ceramic samples of Ca1−xYxMnO3 were synthesized by a liquid-mix method obtaining single phase materials, for 0.1⩽x⩽1, with orthorhombic structure. The cell volume increases with x indicating that changes in the Mn electronic state overcomes the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80443a5d760bf744f2b6b98eba7e03c6
https://doi.org/10.1016/s0921-4526(02)00617-8
https://doi.org/10.1016/s0921-4526(02)00617-8
Publikováno v:
Physica B: Condensed Matter. 320:75-78
Experimental evidence show that in the magnetoresistive manganite Ca_(1-x) Y_xMnO_3, ferromagnetic (FM) polarons arises in an antiferromagnetic (AF) background, as a result of the doping with Yttrium. This hypothesis is supported in this work by clas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83cd4e2dc857c0d77b778298d90f6c9a
https://doi.org/10.1016/s0921-4526(02)00624-5
https://doi.org/10.1016/s0921-4526(02)00624-5
Autor:
B. Alascio, M. Tovar, Daniel Vega, P. Konig, H. Aliaga, H. Lanza, Griselda Polla, A. Esteban, A.G. Leyva, M.T. Causa
Publikováno v:
Journal of Solid State Chemistry. 156:458-463
To help the understanding of the physical behavior of Ca 1− x Y x MnO 3 , its phase diagram in the whole x concentration range was investigated taking into account the stability of phases and the possible coexistence of different structural phases.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90b72cea918afaff5e153d1cb18ec4f5
https://doi.org/10.1006/jssc.2000.9023
https://doi.org/10.1006/jssc.2000.9023
Autor:
H. Aliaga, C.A. Ramos, M.T. Causa, Daniel Vega, Iris L. Torriani, P. Konig, M. Tovar, G. Leyva, B. Alascio, Griselda Polla
Publikováno v:
Physica B: Condensed Matter. 320:37-39
Structural studies on the electron doped Ca1−xYxMnO3 are presented. At 300 K, orthorhombic O-phase was observed in all cases, associated to low electric resistivity and high Curie–Weiss temperature. For samples with x>0.07, structural phase trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ce432b9f4acd746aa81cc52d44ba375
https://doi.org/10.1016/s0921-4526(02)00614-2
https://doi.org/10.1016/s0921-4526(02)00614-2
Autor:
A. A. Aligia, H. Aliaga
Publikováno v:
Physica B: Condensed Matter. 320:34-36
We propose a double exchange model to describe the RuO_2 planes of RuSr_2(Eu,Gd)Cu_2O_8. The Ru^+5 ions are described by localized spins, and additional electrons provided by the superconducting CuO_2 planes are coupled ferromagnetically to them by H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4c3215a217cc10721e265f848603b41
https://doi.org/10.1016/s0921-4526(02)00613-0
https://doi.org/10.1016/s0921-4526(02)00613-0
Autor:
H. Aliaga, Horacio Salva, B. Alascio, M. Tovar, G. Leyva, Griselda Polla, P. Konig, D. Vega, M.T. Causa
Publikováno v:
Journal of Magnetism and Magnetic Materials. :791-793
We present magnetic and transport studies on the manganite Ca 1-x Y x MnO 3 (x ≤ 0.25). A small Y concentration produces an important decrease in the electrical resistivity and increases the magnetization but full ferromagnetic order is not achieve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::883b6b9e8aef29a31f52146858f525dc
https://doi.org/10.1016/s0304-8853(00)01397-4
https://doi.org/10.1016/s0304-8853(00)01397-4
Publikováno v:
Journal of Magnetism and Magnetic Materials. :522-524
We study the competition between ferromagnetic double exchange and antiferromagnetic superexchange present in Mn perovskites. The model represents each Mn4+ ion by a spin 1 2 , on which an electron can be added to produce Mn3−. We include a hopping
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34bea5adda4a6041c01f0138117285de
https://doi.org/10.1016/s0304-8853(98)00869-5
https://doi.org/10.1016/s0304-8853(98)00869-5