Superconductivity in a disordered metal with Coulomb interactions

Autor:	Jose Benito-Llorens, Hermann Suderow, Mikhail R. Baklanov, Alexey Yu. Mironov, Tatyana I. Baturina, José Gabriel Rodrigo, Svetlana V. Postolova, Valerii M. Vinokur, Víctor Barrena
Přispěvatelé:	UAM. Departamento de Física de la Materia Condensada
Rok vydání:	2020
Předmět:	Work (thermodynamics) Super Conducting Phasis FOS: Physical sciences Electronic Density Metal Superconductivity (cond-mat.supr-con) Condensed Matter - Strongly Correlated Electrons Low energy Length Scale Condensed Matter::Superconductivity Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Coulomb Coulomb Screening Computer Science::Cryptography and Security Physics Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Condensed Matter - Superconductivity Normal phase Física Spatial Fluctuation Energy Dependent Spatial Variations Disordered Metals visual_art visual_art.visual_art_medium Density of states Fermi liquid theory
Zdroj:	Biblos-e Archivo. Repositorio Institucional de la UAM instname
DOI:	10.48550/arxiv.2003.01763
Popis:	We study the electronic densities of states (DOS) of strongly disordered superconducting thin films of TiN. We find, using Scanning Tunneling Microscopy (STM) that the DOS decreases towards the Fermi level in the normal phase obtained by applying magnetic fields. The DOS shows spatial fluctuations whose length scale is related to the energy dependent DOS and is similar in normal and superconducting phases. This suggests that Coulomb interactions lead to a spatially varying DOS in the normal phase of a disordered superconductor.
Databáze:	OpenAIRE
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