skip to main content

SciTech ConnectSciTech Connect

Title: A 350 mK, 9 T scanning tunneling microscope for the study of superconducting thin films on insulating substrates and single crystals

We report the construction and performance of a low temperature, high field scanning tunneling microscope (STM) operating down to 350 mK and in magnetic fields up to 9 T, with thin film deposition and in situ single crystal cleaving capabilities. The main focus lies on the simple design of STM head and a sample holder design that allows us to get spectroscopic data on superconducting thin films grown in situ on insulating substrates. Other design details on sample transport, sample preparation chamber, and vibration isolation schemes are also described. We demonstrate the capability of our instrument through the atomic resolution imaging and spectroscopy on NbSe{sub 2} single crystal and spectroscopic maps obtained on homogeneously disordered NbN thin film.
Authors:
; ; ; ;  [1] ;  [2]
  1. Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Homi Bhabha Rd., Colaba, Mumbai 400 005 (India)
  2. Excel Instruments, 28, Sarvodaya Industrial Premises, Off Mahakali Caves Road, Andheri (East), Mumbai 400 093 (India)
Publication Date:
OSTI Identifier:
22250747
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 84; Journal Issue: 12; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; HEAD; MAGNETIC FIELDS; MONOCRYSTALS; NIOBIUM NITRIDES; NIOBIUM SELENIDES; SAMPLE HOLDERS; SAMPLE PREPARATION; SCANNING TUNNELING MICROSCOPY; SPECTROSCOPY; SUBSTRATES; THIN FILMS