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Magnetic field dependence of the resistivity in hydrogen-doped Zr-Fe metallic glass


Kokanović, Ivan; Leontić, Boran; Lukatela, Jagoda; Basletić, Mario; Hamzić, Amir
Magnetic field dependence of the resistivity in hydrogen-doped Zr-Fe metallic glass // Rapidly Quenched and Metastable Materials / Duhaj, P. ; Mrafko, P. ; Švec, P. (ur.).
New York, Amsterdam: Elsevier, 1997. str. 706-710 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
Magnetic field dependence of the resistivity in hydrogen-doped Zr-Fe metallic glass

Autori
Kokanović, Ivan ; Leontić, Boran ; Lukatela, Jagoda ; Basletić, Mario ; Hamzić, Amir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Rapidly Quenched and Metastable Materials / Duhaj, P. ; Mrafko, P. ; Švec, P. - New York, Amsterdam : Elsevier, 1997, 706-710

Skup
9th International Conference on Rapidly Quenched and Metastable Materials

Mjesto i datum
Bratislava, Slovačka, 26-31.08.1996

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Localization; electron-electron interaction; metallic glass; hydrogen; magnetoresistivity

Sažetak
We present results for the magnetic field dependence of the electrical resistivity in hydrogen-doped Zr_68Fe_32 metallic glasses. The undoped sample is paramagnetic down to very low temperatures (< 1 K) because of pronounced spin fluctuations. The observed magnetoresistance is positive and increases with hydrogen concentration. The results have been analyzed using a renormalized expression for the magnetoresistivity which takes into account the exchange enhancement of the spin-splitting contributions (through the Stoner factor) to the usual weak localization and electron-electron interaction terms. The magnetoresistivity enhancement of hydrogen-doped Zr_68Fe_32 has been attributed to the increase of the Stoner factor (1 - I) ^ -1, and of the spin-scattering rate thau_s ^ -1. That increase indicates enhancement of spin fluctuations with hydrogen.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
00350104
119201
119203

Ustanove
Institut za fiziku, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb