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- Title
Berezinskii-Kosterlitz-Thouless Transition in Ultrathin Niobium Films.
- Authors
ALTANANY, S. M.; ZAJCEWA, I.; MINIKAYEV, R.; CIEPLAK, M. Z.
- Abstract
We use resistivity and current-voltage characteristics measurements to evaluate the impact of the disorder on the nature of the Berezinskii-Kosterlitz-Thouless transition in ultrathin niobium (Nb) films. The films, with thickness in the range of 3.6-8.5 nm, show the structural transition from polycrystalline to amorphous structure upon a decrease in the film thickness. We show that this transformation results in the smearing of the Berezinskii-Kosterlitz-Thouless transition, until eventually the Berezinskii-Kosterlitz-Thouless scenario breaks down due to film inhomogeneity.
- Subjects
THIN films; CURRENT-voltage characteristics; SUPERCONDUCTING films; NIOBIUM; POLYCRYSTALLINE semiconductors
- Publication
Acta Physica Polonica: A, 2023, Vol 143, Issue 2, p129
- ISSN
0587-4246
- Publication type
Article
- DOI
10.12693/APhysPolA.143.129