Title
Electronic transport properties of amorphous FeSc3 produced by mechanical milling
Date Issued
01 January 1996
Access level
metadata only access
Resource Type
journal article
Author(s)
Passamani E.C.
Baggio-Saitovich E.
Bud'ko S.L.
El Massalami M.
Gafhari M.
Continentino M.A.
Publisher(s)
Trans Tech Publications Ltd
Abstract
The electrical resistivity (ρ) of amorphous FeSc3 prepared by mechanical milling has been measured from 4.2 K to 300 K. The following features were observed: ρ has minimum at about 8.7 K and its behavior at low temperatures (below 50 K) is typical for semiconductor materials. Moreover the ρ values show an anomalous increase when the temperature is reduced from 250 K to 50 K. Such increase of ρ has been observed in many amorphous materials and it is related to disordered structure. AC susceptibility measurements show that the analyzed sample is inhomogenous. In this work, we used the diffraction or elastic scattering model of the electronic transport proposed by Faber-Ziman in order to explain the linear temperature dependence of resistivity between 50 K and 250 K. Finally, Mössbauer spectroscopy has been performed on the milled powder samples.
Start page
837
End page
840
Volume
225-227
Issue
PART 2
Language
English
OCDE Knowledge area
Ingeniería eléctrica, Ingeniería electrónica
Física atómica, molecular y química
Subjects
Scopus EID
2-s2.0-0030385314
Source
Materials Science Forum
ISSN of the container
02555476
Sources of information:
Directorio de Producción Científica
Scopus