Zobrazeno 1 - 10
of 27
pro vyhledávání: '"K.M.B. Alves"'
Autor:
Francisco G. Emmerich, K.M.B Alves, Luis Gallego Martinez, Marcos Tadeu D’Azeredo Orlando, Alfredo G. Cunha, E. Baggio-Saitovitch
Publikováno v:
Physica C: Superconductivity. 356:97-106
Using a novel technique (thermobaric analysis or TBA) to measure in situ the pressure in quartz tubes, we have investigated the influence of Hg and Re x content in the range 0.00⩽ x ⩽0.25 on the formation and stability of HgCaO 2 . Moreover the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efc3aebcceaa68ca75307ae7045736f2
https://doi.org/10.1016/s0921-4534(01)00089-2
https://doi.org/10.1016/s0921-4534(01)00089-2
Publikováno v:
Journal of Magnetism and Magnetic Materials. 195:49-56
We have used the nuclear magnetic resonance technique to study the magnetic and structural properties of the Gd–Co and Gd–Fe metallic systems, starting with the C15 Laves phase intermetallic compounds, and submitting them to a high-energy milling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca42e91c3d5b3aa6967a95dad92abf8a
https://doi.org/10.1016/s0304-8853(98)01049-x
https://doi.org/10.1016/s0304-8853(98)01049-x
Publikováno v:
Journal of Physics: Condensed Matter. 11:1147-1156
In the present work, high-energy milling under two different atmospheres was applied to the intermetallic compound and to the chemical elemental powders of Er and Fe with stoichiometric composition. Sample A is the compound milled under Ar, sample B
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35ea42b0d21ed41263e031ee51f60c10
https://doi.org/10.1088/0953-8984/11/4/022
https://doi.org/10.1088/0953-8984/11/4/022
Autor:
Marcos Tadeu D’Azeredo Orlando, Edson C. Passamani, K.M.B. Alves, C. Larica, E Nunes, E. M. Baggio-Saitovitch
Publikováno v:
Journal of Alloys and Compounds. 274:23-28
57 Fe Mossbauer spectroscopy in zero and non-zero applied magnetic fields, a.c. magnetic susceptibility and d.c. magnetization measurements have been performed on amorphous YFe 2 (a-YFe 2 ) milled powders obtained from the intermetallic compound in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cc73dcf4ac9afd183ff360059c281ff
https://doi.org/10.1016/s0925-8388(98)00353-3
https://doi.org/10.1016/s0925-8388(98)00353-3
Publikováno v:
Journal of Magnetism and Magnetic Materials. 176:272-278
With the aim of better understanding, the effects of severe milling on the magnetic and structural properties of crystalline compounds, samples of the intermetallic compound GdFe2 were milled up to 276h under inert atmosphere and characterized by X-r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f4de730dc847953f5534120e2ecfa99
https://doi.org/10.1016/s0304-8853(97)00497-6
https://doi.org/10.1016/s0304-8853(97)00497-6
Publikováno v:
Journal of Magnetism and Magnetic Materials. 145:306-312
Mossbauer spectroscopy, X-ray diffraction and nuclear magnetic resonance have been used to study the effects of severe milling on the atomic and magnetic properties of the ferromagnetic intermetallic Laves phase compound YFe 2 . The Mossbauer effect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94441dfcd86c142c36e790afcd767a63
https://doi.org/10.1016/0304-8853(94)01636-4
https://doi.org/10.1016/0304-8853(94)01636-4
Publikováno v:
Journal of Magnetism and Magnetic Materials. :1493-1495
Structural and magnetic properties of nanocrystalline Fe2Co and (Fe2Co)30Cu70 alloys prepared by ball milling have been studied by X-ray, Mossbauer and magnetization measurements. The X-ray and Mossbauer results of Fe2Co milled alloy indicate a forma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc5d6bf44dcd357e57f18de23354c1ab
https://doi.org/10.1016/s0304-8853(00)00937-9
https://doi.org/10.1016/s0304-8853(00)00937-9
Publikováno v:
Hyperfine Interactions. 66:413-416
Magnetization measurements in the (DyxY1−x)Fe2 intermetallic compounds show evidence of blocking of domain wall motion. This effect is a function of concentrationx. The direction of magnetization is also dependent on the Dy concentration. We have u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7cc5cfce1ed0e1d58f86a005883dad5
https://doi.org/10.1007/bf02395894
https://doi.org/10.1007/bf02395894
Autor:
K.M.B. Alves, A.P. Guimara˜es
Publikováno v:
Journal of Magnetism and Magnetic Materials. :1460-1462
The magnetization of the pseudo-binary intermetallic compounds (Dy x Y 1− x )Fe 2 and (Er x Y 1− x )Fe 2 was studied in high magnetic fields (up to 20 T). The saturation magnetization shows a minimum as a function of concentration, due to the ant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::710b8439665d3519c2c516acdbbb132e
https://doi.org/10.1016/0304-8853(92)90663-9
https://doi.org/10.1016/0304-8853(92)90663-9
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