Published September 2007
| Version v1
Journal article
Enhanced extrinsic magnetoresistance in La2/3Sr1/3MnO3 artificial grain boundaries induced by ion implantation
Creators
- 1. Institute of Information Functional Materials, Hebei University of Technology, Tianjin 300130 (China)
- 2. Beijing Jingyi Century Automatic Equipment Co. Ltd, Beijing 100078 (China)
- 3. National Laboratory for Superconductivity, Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080 (China)
- 4. Laboratory of Microfabrication, Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080 (China)
Description
The resistance of polycrystalline divalent-ion-doped LaMnO3 has been shown to be highly sensitive to low magnetic fields. To enable direct study of the properties of isolated grain boundaries, we developed a new method to form artificial boundaries in manganite thin films. Metal slits about 70nm in width were printed by 30KV focused Ga ion beam nanolithography on a 4μmLa2/3Sr1/3MnO3 bridge, and the materials in these slits were then irradiated by accelerated H2+ ions. Using this method, magnetoresistance (MR) >8% and >16% were, respectively, obtained at 150 and at 10K in a magnetic field of 1T. This technique is very promising in terms of its simplicity and flexibility of fabrication and has the potential for high-density integration
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2007.02.207;
- PII
- S0304-8853(07)00077-7;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 316
- Journal Issue
- 1
- Journal Page Range
- p. L1-L4
- ISSN
- 0304-8853
- CODEN
- JMMMDC
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39032885
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- DOPED MATERIALS; FABRICATION; FLEXIBILITY; GALLIUM IONS; GRAIN BOUNDARIES; ION BEAMS; ION IMPLANTATION; IRRADIATION; LANTHANUM COMPOUNDS; MAGNETIC FIELDS; MAGNETIC PROPERTIES; MAGNETORESISTANCE; MANGANESE COMPOUNDS; OXIDES; POLYCRYSTALS; STRONTIUM COMPOUNDS; THIN FILMS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BEAMS; CHALCOGENIDES; CHARGED PARTICLES; CRYSTALS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; FILMS; IONS; MATERIALS; MECHANICAL PROPERTIES; MICROSTRUCTURE; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; TENSILE PROPERTIES; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.