Cover Page December-2017-Advanced Materials Letters

Advanced Materials Letters

Volume 8, Issue 12, Article ID 1204-1210, December 2017
About Cover


Magnetic flux channelling in YBa2Cu3O7-δ films grown by a chemical solution deposition technique on vicinal and non-vicinal substrates

Thomas Qureishy1, Yue Zhao2, 3, Yan Xu2, 4, Jørn I. Vestgården1, 5, Tom H. Johansen1,6, Jean-Claude Grivel2, Hongli Suo4, Pavlo Mikheenko1*  

1Department of Physics, University of Oslo, PO Box 1048 Blindern, 0316 Oslo, Norway.

2Department of Energy Conversion and Storage, Technical University of Denmark, Roskilde 4000, Denmark.

3Department of Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd, Minhang, Shanghai, China, 200240

4The Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100022, China

5Norwegian Defence Research Establishment (FFI), Kjeller, Norway

6Institute for Superconducting and Electronic Materials, University of Wollongong, Northfields Avenue, Wollongong,NSW 2522, Australia

Adv. Mater. Lett., 2017, 8 (12), pp 1204-1210

DOI: 10.5185/amlett.2017.1474

Publication Date (Web): Sep 08, 2017

E-mail: pavlo.mikheenko@fys.uio.no

Abstract


Magneto-optical imaging of YBa2Cu3O7-δ films with high critical current density, synthesized by a cost-effective metal organic decomposition technique reveals inhomogeneous flux penetration in the specimens in the form of thin parallel lines. The origin of such a stripy pattern and its dependence on the sample preparation conditions and state of substrate is discussed. The stripes reflect accumulation of planar defects forming parallel lines of reduced in-plane critical current density, jc, perpendicular to planar defects and enhanced jc parallel to them. Such channel-like reduction and corresponding enhancement of jc is especially expressed in a sample deposited on vicinal substrate, which, as a consequence, demonstrates global temperature-dependent in-plane anisotropy with an anisotropy ratio up to 2.4. The directional enhancement of critical current density due to planar defects could be beneficial for practical use of superconducting films. 

Keywords

Magneto-optical imaging, superconducting films, YBCO, metal-organic deposition.

Current Issue
The Journey of a Decade to Advancing Materials
Are the Electrospun Polymers Polymeric Fibers?
Mechanical and Thermal Properties of Composite Material and Insulation for a Single Walled Tank for Cryogenic Liquids
Prediction of Long-Term Behavior for Dynamically Loaded TPU
Investigation of Doped Titanium Dioxide in Anatase Phase. Study ab initio using Density Functional Theory
Comparison between Single Al2O3 or HfO2 Single Dielectric Layers and their Nanolaminated Systems
Preparation of Stable and Optimized Antibody-gold Nanoparticle Conjugates for Point of Care Test Immunoassays
Resonance-Based Temperature Sensors using a Wafer Level Vacuum Packaged SOI MEMS Process
Integrated System Based on the Hall Sensors Incorporating Compensation of the Distortions
The Efficacy of Cinnamomum Tamala as a Potential Antimicrobial Substance against the Multi-Drug Resistant Enterococcus Faecalis from Clinical Isolates
The Effect of Complexing Reagent on Structural, Electrical and Optical Properties of CuS Thin Film
Laser Cladding of Fluorapatite Nanopowders on Ti6Al4V
Preparation and Evaluation of Sulfonate Polyethylene Glycol Borate Ester as a Modifier of Functional Properties of Complex Petroleum Lithium Grease

Upcoming Congress

Knowledge Experience at Sea TM