Published 2008 | Version v1
Journal article Metadata-only

Resistance switching in nanocolumnar La0.7Sr0.3MnO3 films

Creators

  • 1. I. Physikalisches Institut, Universitaet Goettinge, Friderich-Hund-Platz 1, 37077 Goettingen (Germany)
  • 2. EMAT, University of Antwerp, Groenenborgerlaan 171, B2020 Antwerpen (Belgium)

Description

We report large (700 %) and reversible electric field induced switching of the resistance in LSMO films, grown by a metalorganic aerosol deposition technique on Al2O3(0001) substrates. The films show nanocolumnar microstructure, formed predominantly by (0001) out-of-plane oriented triangle shaped grains. Magnetotransport behaviour is dominated by the epitaxial (10-10) 60 - and (1-210) 30 - grain boundaries (GB), yielding a pronounced tunnelling magnetoresistance effect. The I(V) curves of microstructured samples (1 x 1 μm2) are strongly nonlinear for small voltages and show reversible switching from a high to the low resistance state at ±7 V. A mechanism for resistance switching is suggested based on the reversible voltage induced change of the angle of Mn-O-Mn bindings at the GB's

Availability note (English)

Also available online: http://www.dpg-tagungen.de/index_en.html

Additional details

Identifiers

URL
http://www.dpg-tagungen.de/index_en.html; http://www.dpg-verhandlungen.de;

Publishing Information

Journal Title
Verhandlungen der Deutschen Physikalischen Gesellschaft
Journal Volume
43
Journal Issue
1
Journal Page Range
[1 p.]
ISSN
0420-0195
CODEN
VDPEAZ

Conference

Title
Physics Education, History of Physics, Radiation and Medical Physics as well as the Working Groups Equal Opportunities, Industry and Business, Information, Physics and Disarmament, Physics of Socio-economic Systems, Young DPG
Original Conference Title
72. Jahrestagung und DPG (Deutsche Physikalische Gesellschaft e.V.) Fruehjahrstagung der Sektion Kondensierte Materie und den Fachverbaenden: Didaktik der Physik, Geschichte der Physik, Strahlen- und Medizinphysik und den Arbeitskreisen Chancengleichheit, Industrie und Wirtschaft, Information, Physik und Abruestung, Physik Sozio-oekonomischer Systeme, Junge DPG
Acronym
72. annual meeting and DPG (Deutsche Physikalische Gesellschaft e.V.) Spring meeting of the Condensed Matter Section and the Divisions
Dates
25-29 Feb 2008
Place
Berlin (Germany)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
40060673
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
AEROSOLS; ALUMINIUM OXIDES; BOND ANGLE; DEPOSITION; EPITAXY; FILMS; GRAIN BOUNDARIES; GRAIN ORIENTATION; LANTHANUM OXIDES; MAGNETORESISTANCE; MANGANESE OXIDES; NONLINEAR PROBLEMS; ORGANOMETALLIC COMPOUNDS; STRONTIUM OXIDES; SUBSTRATES; TUNNEL EFFECT
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; COLLOIDS; CRYSTAL GROWTH METHODS; DISPERSIONS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; LANTHANUM COMPOUNDS; MANGANESE COMPOUNDS; MICROSTRUCTURE; ORGANIC COMPOUNDS; ORIENTATION; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SOLS; STRONTIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
Session: MA 5.1 Mo 10:15; No further information available