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Strain-relaxation and critical thickness of epitaxial La1.85Sr0.15CuO4 films

Journal Article · · APL Materials
DOI:https://doi.org/10.1063/1.4937170· OSTI ID:1234342
 [1];  [2];  [3];  [2];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Pusan National Univ., Busan (Korea, Republic of); Univ. of Tennessee, Knoxville, TN (United States)
We report the thickness-dependent strain-relaxation behavior and the associated impacts upon the superconductivity in epitaxial La1.85Sr0.15CuO4 films grown on different substrates, which provide a range of strain. We have found that the critical thickness for the onset of superconductivity in La1.85Sr0.15CuO4 films is associated with the finite thickness effect and epitaxial strain. In particular, thin films with tensile strain greater than ~0.25% revealed no superconductivity. We attribute this phenomenon to the inherent formation of oxygen vacancies that can be minimized via strain relaxation.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1234342
Journal Information:
APL Materials, Journal Name: APL Materials Vol. 3; ISSN 2166-532X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (38)

Unusual Strain Accommodation and Conductivity Enhancement by Structure Modulation Variations in Sr4Fe6O12+δ Epitaxial Films journal March 2008
The Poisson Ratio in CoFe 2 O 4 Spinel Thin Films journal June 2012
Defects in epitaxial multilayers: II. Dislocation pile-ups, threading dislocations, slip lines and cracks journal July 1975
Defects in epitaxial multilayers journal February 1976
Increase in the superconducting transition temperature by anisotropic strain effect in (001) La1.85Sr0.15CuO4 thin films on LaSrAlO4 substrates journal February 1997
Thickness dependence of superconductivity and resistivity in La1.85Sr0.15CuO4 films journal July 2008
Finite size effect and phase diagram of ultra-thin La0.7Sr0.3MnO3 journal April 2010
Defects in epitaxial multilayers: I. Misfit dislocations journal December 1974
Strain Influence on the Oxygen Electrocatalysis of the (100)-Oriented Epitaxial La 2 NiO 4+δ Thin Films at Elevated Temperatures journal September 2013
Enhancing Total Conductivity of La 2 NiO 4+δ Epitaxial Thin Films by Reducing Thickness journal June 2008
Scaling of transition temperature and CuO2 plane buckling in a high-temperature superconductor journal January 1999
Doubling the critical temperature of La1.9Sr0.1CuO4 using epitaxial strain journal July 1998
Anisotropic oxygen diffusion properties in epitaxial thin films of La 2 NiO 4+δ journal January 2008
In situ growth and properties of single‐crystalline‐like La 2− x Sr x CuO 4 epitaxial films by off‐axis sputtering journal November 1991
Thickness dependence of La 2− x Sr x CuO 4 films journal December 1994
Impact of stress on oxygen vacancy ordering in epitaxial (La0.5Sr0.5)CoO3−∂ thin films journal May 2003
Thickness-dependent electronic structure of ultrathin SrRuO3 films studied by in situ photoemission spectroscopy journal October 2005
Interface structure and strain relaxation in BaTiO3 thin films grown on GdScO3 and DyScO3 substrates with buried coherent SrRuO3 layer journal December 2007
Conductivity enhancement of ultrathin LaNiO3 films in superlattices journal November 2010
Tuning electronic structure via epitaxial strain in Sr 2 IrO 4 thin films journal April 2013
Lattice mismatch accommodation via oxygen vacancy ordering in epitaxial La 0.5 Sr 0.5 CoO 3-δ thin films journal July 2013
Crystal structure of the high-temperature superconductor La 1.85 Sr 0.15 CuO 4 above and below T c journal May 1987
Correlation of T c with hole concentration in La 2 − x Sr x Cu O 4 − δ superconductors journal September 1987
Uniaxial pressure dependence of T c from high-resolution dilatometry of untwinned La 2 − x Sr x CuO 4 single crystals journal May 1994
Unconventional lattice stiffening in superconducting La 2 − x Sr x CuO 4 single crystals journal July 1995
Role of two-dimensional electronic state in superconductivity in La 2 − x Sr x CuO 4 journal January 2000
Strain-controlled oxygen vacancy formation and ordering in CaMnO 3 journal August 2013
Fundamental Thickness Limit of Itinerant Ferromagnetic SrRuO 3 Thin Films journal July 2009
Band-Structure Trend in Hole-Doped Cuprates and Correlation with T c max journal July 2001
Epitaxial Strain and Superconductivity in L a 2 − x S r x C u O 4 Thin Films journal August 2002
Uniaxial pressure dependence of the superconducting critical temperature in R Ba 2 Cu 3 O 7 − δ high- T c oxides journal July 1992
La 2 − x Sr x CuO y epitaxial thin films ( x = 0 to 2): Structure, strain, and superconductivity journal May 2000
High-Temperature Superconductivity in a Single Copper-Oxygen Plane journal October 2009
Superconductivity at 40 K in the Oxygen-Defect Perovskites La2-xSrxCuO4-y journal March 1987
Strain Relaxation in Thin Films of La 1.85 Sr 0.15 CuO 4 Grown by Pulsed Laser Deposition journal January 2007
Band-Structure Trend in Hole-Doped Cuprates and Correlation with Tc max text January 2001
Tuning electronic structures via epitaxial strain in Sr2IrO4 thin films text January 2013
Strain-controlled oxygen vacancy formation and ordering in CaMnO₃ text January 2013

Cited By (9)

Film-thickness-driven superconductor to insulator transition in cuprate superconductors journal February 2020
Controlling Oxygen Mobility in Ruddlesden–Popper Oxides journal March 2017
Emerging magnetism and anomalous Hall effect in iridate–manganite heterostructures journal September 2016
Strain control of oxygen kinetics in the Ruddlesden-Popper oxide La1.85Sr0.15CuO4 journal January 2018
Magnetic signatures of 120 K superconductivity at interfaces in La 2 CuO 4+δ journal January 2020
Electronic and magnetic properties of epitaxial SrRh O 3 films journal June 2017
Magnetic Exchange Fields and Domain Wall Superconductivity at an All-Oxide Superconductor-Ferromagnet Insulator Interface journal August 2018
3D strain-induced superconductivity in La 2 CuO 4+δ using a simple vertically aligned nanocomposite approach journal April 2019
Magnetic Exchange Fields and Domain Wall Superconductivity at an All-Oxide Superconductor-Ferromagnet Insulator Interface text January 2018

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