Scanning Tunneling Spectroscopy On Electron Boson Interactions In Superconductors
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Schackert, Michael PeterScanning Tunneling Spectroscopy on Electron-Boson Interactions in Superconductors
Author: Schackert, Michael Peter
language: en
Publisher: KIT Scientific Publishing
Release Date: 2015-03-23
This work describes the experimental study of electron-boson interactions in superconductors by means of inelastic electron tunneling spectroscopy performed with a scanning tunneling microscope (STM) at temperatures below 1 K. This new approach allows the direct measurement of the Eliashberg function of conventional superconductors as demonstrated on lead (Pb) and niobium (Nb). Preparative experiments on unconventional iron-pnictides are presented in the end.
Scanning Tunneling Spectroscopy on Electron-Boson Interactions in Superconductors
This work describes the experimental study of electron-boson interactions in superconductors by means of inelastic electron tunneling spectroscopy performed with a scanning tunneling microscope (STM) at temperatures below 1 K. This new approach allows the direct measurement of the Eliashberg function of conventional superconductors as demonstrated on lead (Pb) and niobium (Nb). Preparative experiments on unconventional iron-pnictides are presented in the end. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
Elastic and Inelastic Scanning Tunneling Spectroscopy on Iron-Based Superconductors
Author: Jandke, Jasmin Maria
language: en
Publisher: KIT Scientific Publishing
Release Date: 2019-05-02
Within this work, the pairing mechanism of conventional (Pb) and unconventional superconductors (SrFe2(As1-xPx )2 , FeSe, FeSe/STO) was investigated experimentally by means of elastic and inelastic tunneling spectroscopy at temperatures down to 30 mK. The distinction between elastic and inelastic contributions to tunneling data was elaborated. The results help to identify conventional (phonon-mediated) and unconventional (e.g. spin-?uctuation mediated) superconductivity.