Effect of magnetic field on mechanics of nonmagnetic crystals: The nature of magnetoplasticity

Journal Article · Mon May 15 00:00:00 EDT 2006 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776106050116· OSTI ID:21067687

Buchachenko, A. L. ^[1]

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1. Russian Academy of Sciences, Semenov Institute of Chemical Physics (Russian Federation), E-mail: [e-mail]

The magnetoplastic effect in mechanics of nonmagnetic crystals is attributed to spin evolution in the spin-selective nanoscale reactor created by electron transfer from a dislocation to a stopper. In this 'dislocation + stopper' system, dislocation depinning is facilitated because the Coulomb attraction between the dislocation and the stopper is switched off. Since magnetic field stimulates the singlet-to-triplet conversion of the nanoscale reactor (the reverse electron transfer is forbidden), the nanoscale reactor with switched-off Coulomb interaction has a longer lifetime. The resulting increase in depinning rate and dislocation mobility provides a physical explanation for magnetoplasticity.

• OSTI ID: 21067687
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 102, Issue 5; Other Information: DOI: 10.1134/S1063776106050116; Copyright (c) 2006 Nauka/Interperiodica; Article Copyright (c) 2006 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COULOMB FIELD
CRYSTALS
DISLOCATIONS
ELECTRON TRANSFER
LIFETIME
MAGNETIC FIELDS
MOBILITY
NANOSTRUCTURES
SPIN
TRIPLETS