Published September 1, 2007 | Version v1
Journal article Metadata-only

Conductivity and antiferromagnetism of CaCuO2 thin films doped by Sr

Creators

  • 1. Institute of Radio Engineering and Electronics RAS, Mokhovaya 11 bld7, 125009 Moscow (Russian Federation)
  • 2. Chalmers University of Technology, Department of Microtechnology and Nanoscience, SE-41296 Goteborg (Sweden)

Description

The results of electrical and magnetic investigations of epitaxial CaxSr1-xCuO2 (CSCO) thin films grown by pulsed laser deposition are presented. The experimental temperature dependence of the CSCO film conductivity at low doping level is well described by the 3-d Mott insulator model over a wide temperature range (4.2-300 K). A deviation from the model with changing of Sr concentration has been observed. The Neel temperature of the films, TN, was determined by electron paramagnetic resonance technique. The comparison of the obtained TN value with the one previously obtained for the CSCO powder sample could be caused by oxygen vacancies in the CSCO films. Nb/Au/Ca1-xSrxCuO2/YBa2Cu3O7-δ heterostructures have been fabricated and superconducting current has been observed at low temperatures

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physc.2007.03.144

Additional details

Identifiers

DOI
10.1016/j.physc.2007.03.144;
PII
S0921-4534(07)00280-8;

Publishing Information

Journal Title
Physica. C, Superconductivity
Journal Volume
460-462
Journal Page Range
p. 536-537
ISSN
0921-4534
CODEN
PHYCE6

Conference

Title
8. international conference on materials and mechanisms of superconductivity and high temperature superconductors
Acronym
M2S-HTSC VIII
Dates
9-14 Jul 2006
Place
Dresden (Germany)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39068952
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANTIFERROMAGNETISM; BARIUM COMPOUNDS; CALCIUM COMPOUNDS; COMPARATIVE EVALUATIONS; CRYSTAL GROWTH; CUPRATES; DOPED MATERIALS; ELECTRON SPIN RESONANCE; ENERGY BEAM DEPOSITION; EPITAXY; GOLD; LASER RADIATION; MAGNETIC PROPERTIES; NEEL TEMPERATURE; NIOBIUM; POWDERS; PULSED IRRADIATION; STRONTIUM ADDITIONS; STRONTIUM COMPOUNDS; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE; TEMPERATURE RANGE 0065-0273 K; THIN FILMS; VACANCIES; YTTRIUM COMPOUNDS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALLOYS; COPPER COMPOUNDS; CRYSTAL DEFECTS; CRYSTAL GROWTH METHODS; CRYSTAL STRUCTURE; DEPOSITION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; ELEMENTS; EVALUATION; FILMS; IRRADIATION; MAGNETIC RESONANCE; MAGNETISM; MATERIALS; METALS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POINT DEFECTS; RADIATIONS; REFRACTORY METALS; RESONANCE; STRONTIUM ALLOYS; SURFACE COATING; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; TRANSITION TEMPERATURE

Optional Information

Copyright
Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.