Výsledky vyhledávání - "Ligas de manganês"

Tailoring coercivity of unbiased exchange-coupled ferromagnet/antiferromagnet bilayers

Autor: K.D. Sossmeier, Arthur Paulo Ozelame Bastos, Joao Edgar Schmidt, Deise Schafer, Julian Penkov Geshev

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

This paper reports experimental results obtained on unconventional exchange-coupled ferromagnet/ antiferromagnet (FM/AF) system showing zero net bias. The Curie temperature of the FM (NiCu) is lower than the blocking temperature of the AF (IrMn). Sam

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::661821300e44591b40c4b275eddbac74

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Ion irradiation effects on the exchange bias in IrMn/Co films

Autor: Luis Gustavo Pereira, Julian Penkov Geshev, Deise Schafer, Pedro Luis Grande

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

The present work reports on the influence of ion irradiation in exchange-coupled bilayers. Magnetron-sputtered IrMn4 /Co films were irradiated with 40 keV He+ ions and the dependence of their magnetic properties was studied as function of ion fluence

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2355c896251aa0313ed7513be2ba3333

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Electronic and crystallographic structure, hard x-ray photoemission, and mechanical and transport properties of the half-metallic Heusler compound Co2MnGe

Autor: Ouardi, Siham, Fecher, Gerhard H., Balke, Benjamin, Beleanu, Andreea, Kozina, Xeniya, Stryganyuk, Gregory, Felser, Claudia, Klöß, Werner, Schrader, Hartmut, Bernardi, Fabiano, Morais, Jonder, Ikenaga, Eiji, Yamashita, Yoshiyuki, Ueda, Shigenori, Kobayashi, Keisuke

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

This work reports on the electronic and crystalline structure and the mechanical, magnetic, and transport properties of the polycrystalline Heusler compound Co2MnGe. The crystalline structure was examined in detail by extended x-ray absorption fine-s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::d764264a80ff84b9cbfb06725861e71a

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Engineering double-shifted hysteresis loops in Co/IrMn/Cu/Co films

Autor: Thiago Dias, Cyrile Deranlot, Rafael Cichelero, Julian Penkov Geshev, Frédéric Petroff, Joao Edgar Schmidt, Luis Gustavo Pereira

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

Co(3 nm)/IrMn(15 nm)/Cu(dCu)/Co(7 nm) films were subjected to magnetic annealing where its temperature and duration as well as the direction and amplitude of the applied field were varied. We demonstrate that the exchange-bias field magnitude and sig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f10e3baa591b5eb919dbbc6dc8efaec8

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Impedance and initial magnetic permeability of the Heusler compounds Pd/sub 2/MnSn and Pd/sub 2/MnSb near the Curie temperature

Autor: Fraga, Gilberto Luiz Ferreira, Borba, Luciano Apellaniz, Pureur Neto, Paulo

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

In this paper we report measurements of the complex impedance of the Heusler compounds Pd2MnSn and Pd2MnSb near the Curie temperature. From the experimental data, the complex initial magnetic permeability is obtained as a function of temperature and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::5591ec9c6b2841e5e1389108384c4443

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Remanence plots technique extended to exchange bias systems

Autor: Rafael Cichelero, A. Harres, Julian Penkov Geshev, Joao Edgar Schmidt, L. G. Pereira

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

Efforts have been recently made to use remanence plots in exchange-bias studies. However, since the two remnant magnetizations of a biased loop may differ, this technique cannot be applied in its classical form. This work extends it to systems with s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c90d3489bca13d6f1af82a5d5ccbfeca
https://doi.org/10.1063/1.4816255

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