Electronic transport properties of amorphous FeSc3 produced by mechanical milling

Victor Antonio Peña Rodriguez, E. C. Passamani, E. Baggio-Saitovich, S. L. Bud'ko, M. El Massalami, M. Gafhari, M. A. Continentino

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)837-840
Number of pages4
JournalMaterials Science Forum
Volume225-227
Issue numberPART 2
StatePublished - 1996
Externally publishedYes

Keywords

  • Mechanical milling
  • Mössbauer effect
  • Transport properties

Fingerprint Dive into the research topics of 'Electronic transport properties of amorphous FeSc<sub>3</sub> produced by mechanical milling'. Together they form a unique fingerprint.

Cite this