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Title: Phase-separated, epitaxial composite cap layers for electronic device applications and method of making the same

Patent ·
OSTI ID:1068840
 [1];  [1];  [1]
  1. Knoxville, TN
+ Show Author Affiliations

An electronic component that includes a substrate and a phase-separated layer supported on the substrate and a method of forming the same are disclosed. The phase-separated layer includes a first phase comprising lanthanum manganate (LMO) and a second phase selected from a metal oxide (MO), metal nitride (MN), a metal (Me), and combinations thereof. The phase-separated material can be an epitaxial layer and an upper surface of the phase-separated layer can include interfaces between the first phase and the second phase. The phase-separated layer can be supported on a buffer layer comprising a composition selected from the group consisting of IBAD MgO, LMO/IBAD-MgO, homoepi-IBAD MgO and LMO/homoepi-MgO. The electronic component can also include an electronically active layer supported on the phase-separated layer. The electronically active layer can be a superconducting material, a ferroelectric material, a multiferroic material, a magnetic material, a photovoltaic material, an electrical storage material, and a semiconductor material.

Research Organization:
UT-Battelle LLC/ORNL, Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
8,221,909
Application Number:
12/947,911
OSTI ID:
1068840
Country of Publication:
United States
Language:
English

References (16)

Growth of thick Yba 2 Cu 3 O 7−δ films carrying a critical current of over 230 A/cm on single LaMnO 3 -buffered ion-beam assisted deposition MgO substrates journal September 2003
Deposition and characterization of YBa 2 Cu 3 O 7−δ /LaMnO 3 /MgO/TiN heterostructures on Cu metal substrates for development of coated conductors journal October 2003
Phase-Separated, Epitaxial, Nanostructured LaMnO 3 +MgO Composite Cap Layer Films for Propagation of Pinning Defects in YBa 2 Cu 3 O 7-δ Coated Conductors journal June 2009
Structural phase transitions and stress accommodation in ( La 0.67 Ca 0.33 MnO 3 ) 1 − x : ( MgO ) x composite films journal September 2002
Growth of YBCO films on MgO-based rolling-assisted biaxially textured substrates templates journal December 2004
Processing and characterization of LaMnO3-buffered layer on IBAD-MgO template journal September 2008
Analysis of precursors for crystal growth of YBaCuO thin films in magnetron sputtering deposition journal February 2009
Direct growth of LaMnO 3 cap buffer layers on ion-beam-assisted deposition MgO for simplified template-based YBa 2 Cu 3 O 7−δ -coated conductors journal November 2008
The influence of filament arrangement on current distribution and AC loss in Bi-2223/Ag tapes journal February 2004
Low AC Loss Structures in YBCO Coated Conductors With Filamentary Current Sharing journal June 2005
Fabrication of highly textured IBAD-MgO template by continuous reel-to-reel process and its characterization journal October 2007
An evaluation of phase separated, self-assembled LaMnO 3 -MgO nanocomposite films directly on IBAD-MgO as buffer layers for flux pinning enhancements in YBa 2 Cu 3 O 7-δ coated conductors journal March 2010
Growth of Lanthanum Manganate Buffer Layers for Coated Conductors via a Metal-Organic Decomposition Process journal June 2005
YBCO films grown by reactive co-evaporation on simplified IBAD-MgO coated conductor templates journal December 2009
Properties of YBCO on ${\rm LaMnO}_{3}$-Capped IBAD MgO-Templates Without Homo-Epitaxial MgO Layer journal June 2009
Deposition of LaMnO3 buffer layer on IBAD-MgO template by reactive DC sputtering journal October 2009

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