|About this Abstract
||1st World Congress on High Entropy Alloys (HEA 2019)
||High Entropy Alloys 2019
||Development of Sputtered HEA Thin Films and Their Functional Properties
||Jeyanthinath Mayandi, Stange Marit, Espen Sagvolden , Martin Fleissner Sunding, Øystein Dahl, Matthias Schrade, Jonas Deuermeier, Elvira Fortunato, Ole Martin Løvvik , Spyridon Diplas, Terje G Finstad, Patricia Almeida Carvalho
|On-Site Speaker (Planned)
In the last decade, high-entropy alloys (HEA) emerged as an exciting new class of materials with remarkable physical properties. It is attractive to explore the functional properties of the HEA, such as optical band gap and resistivity, relevant for scouting the potential for specific semiconductor applications. In the present work we have studied the fundamental behaviours of thin films of (i)CrFeNiCoCr, (ii) GeFeNiCoCu and (iii)MnVCrAlTi and their HEA-oxides created by reactive and nonreactive sputtering. All the samples were characterized by structural, optical and electrical methods. The resistivity of the films varied from 10-4 to more than 106 Ωcm and the band gap varied from 0 to 3 eV for the different alloys. The as prepared metallic films had fcc structure while the oxides had NaCl structure. This will be discussed in terms of the structural analysis and suggested electronic model of the films.