Published February 2015 | Version v1
Miscellaneous Metadata-only

Enhancement of TC in Fe-based superconducting films by strain effect

Creators

  • 1. Department of Physics, Southeast University, Nanjing (China)
  • 2. Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW (Australia)

Description

The effects of iron deficiency in FexSe0.5Te0.5 thin films (0.8C) up to 21K was observed in the most Fe deficient film (x=0.8). Based on the observed and simulated structural variation results, there is a high possibility that Fe vacancies can be formed in the FexSe0.5Te0.5 films. The enhancement of TC shows a strong relationship with the lattice strain effect induced by Fe vacancies. Importantly, the presence of Fe vacancies alters the charge carrier population by introducing electron charge carriers, with the Fe deficient film showing more metallic behavior than the defect-free film. Our study provides a means to enhance the superconductivity and tune the charge carriers via Fe vacancy, with no reliance on chemical doping.

Part of:
39th annual condensed matter and materials meeting. Conference handbook

Additional details

Identifiers

URL
http://aip.org.au/annual-cmm-meetings/; http://aip.org.au/wp-content/uploads/cmm/2015/Wagga2015_10_Handbook.pdf;

Publishing Information

ISBN
978-0-646-59459-0
Imprint Title
39th annual condensed matter and materials meeting. Conference handbook
Imprint Pagination
102 p.
Journal Page Range
p. 82

Conference

Title
39. Annual condensed matter and materials meeting
Dates
3-6 Feb 2015
Place
Wagga Wagga, NSW (Australia)

INIS

Country of Publication
Australia
Country of Input or Organization
Australia
INIS RN
49070093
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
CHARGE CARRIERS; CRYSTAL LATTICES; ELECTRICAL PROPERTIES; ELECTRONIC STRUCTURE; IRON; SUPERCONDUCTING FILMS; SUPERCONDUCTIVITY; THIN FILMS; TRANSITION TEMPERATURE; VARIATIONS
Descriptors DEC
CRYSTAL STRUCTURE; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTS; FILMS; METALS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS

Optional Information