Superconductivity in "Amorphous" Transition-Metal Alloy Films

Transition metal carbide nanocomposite and amorphous thin films

............................................................................. i Populärvetenskaplig sammanfattning ........................................ iii Preface ............................................................................... v Acknowledgements ............................................................... xi

Amorphous Silicon-Carbon-Fluorine Alloy Films

Topological superconductivity in monolayer transition metal dichalcogenides

Theoretically, it has been known that breaking spin degeneracy and effectively realizing spinless fermions is a promising path to topological superconductors. Yet, topological superconductors are rare to date. Here we propose to realize spinless fermions by splitting the spin degeneracy in momentum space. Specifically, we identify monolayer hole-doped transition metal dichalcogenide (TMD)s as c...

Amorphous to amorphous insulator-metal transition in GeSe3:Ag glasses

We study an insulator-metal transition in a ternary chalcogenide glass (GeSe3)1−xAgx for x = 0.15 and 0.25. The conducting phase of the glass is obtained by using gap sculpting [Prasai et al., Sci. Rep. 5, 15522 (2015)] and it is observed that the metallic and insulating phases have nearly identical density functional energies but have a conductivity contrast of ∼108. As such, we demonstrate an...

Formation and structure of V-Zr amorphous alloy thin films

Although the equilibrium phase diagram predicts that alloys in the central part of the V-Zr system should consist of V2Zr Laves phase with partial segregation of one element, it is known that under non-equilibrium conditions these materials can form amorphous structures. Here we examine the structures and stabilities of thin film V-Zr alloys deposited at room temperature by magnetron sputtering...