Magnetic switching in the perovskite point contact constrictions
Creators
- 1. Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznan (Poland)
Description
The magnetic switching processes in point contacts (PC), which is made of the La0.7Sr0.3MnO3 perovskite ceramic, are studied as a function of the dc current passing through the nanoconstriction. Due to the close relation between the transport properties and the magnetization in manganite compounds, the resistivity measurements provide an excellent indirect method to characterize the magnetic switching processes observed in the atomic scale constrictions. Based on this, we interpret the jumps of the PC conductance by the integer multiples of the conductance quantum (e 2/h) as due to the magnetization configuration reorientation in the Mn-ions clusters at the surface of the nanoconstriction. This switching can be understood in the terms of the exchange of the angular momentum between the spin-polarized current and the magnetic moments of the cluster situated between the electrodes or on their surfaces
Additional details
Identifiers
- DOI
- 10.1016/j.mseb.2005.09.018;
- PII
- S0921-5107(05)00606-9;
Publishing Information
- Journal Title
- Materials Science and Engineering. B, Solid-State Materials for Advanced Technology
- Journal Volume
- 126
- Journal Issue
- 2-3
- Journal Page Range
- p. 187-189
- ISSN
- 0921-5107
- CODEN
- MSBTEK
Conference
- Title
- Spintronics
- Acronym
- E-MRS 2005, Symposium B
- Dates
- 31 May - 3 Jun 2005
- Place
- Strasbourg (France)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37120742
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANGULAR MOMENTUM; CERAMICS; ELECTRIC CONDUCTIVITY; ELECTRIC CONTACTS; ELECTRIC CURRENTS; ELECTRODES; LANTHANUM COMPOUNDS; MAGNETIC MOMENTS; MAGNETIZATION; MANGANATES; MANGANESE IONS; PEROVSKITE; SPIN ORIENTATION; STRONTIUM COMPOUNDS; SURFACES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHARGED PARTICLES; CURRENTS; ELECTRICAL EQUIPMENT; ELECTRICAL PROPERTIES; EQUIPMENT; IONS; MANGANESE COMPOUNDS; MINERALS; ORIENTATION; OXIDE MINERALS; OXYGEN COMPOUNDS; PEROVSKITES; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.