skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

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

Abstract

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.

Authors:
 [1]
  1. Russian Academy of Sciences, Semenov Institute of Chemical Physics (Russian Federation), E-mail: abuchach@chph.ras.ru
Publication Date:
OSTI Identifier:
21067687
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Experimental and Theoretical Physics; Journal Volume: 102; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COULOMB FIELD; CRYSTALS; DISLOCATIONS; ELECTRON TRANSFER; LIFETIME; MAGNETIC FIELDS; MOBILITY; NANOSTRUCTURES; SPIN; TRIPLETS

Citation Formats

Buchachenko, A. L. Effect of magnetic field on mechanics of nonmagnetic crystals: The nature of magnetoplasticity. United States: N. p., 2006. Web. doi:10.1134/S1063776106050116.
Buchachenko, A. L. Effect of magnetic field on mechanics of nonmagnetic crystals: The nature of magnetoplasticity. United States. doi:10.1134/S1063776106050116.
Buchachenko, A. L. Mon . "Effect of magnetic field on mechanics of nonmagnetic crystals: The nature of magnetoplasticity". United States. doi:10.1134/S1063776106050116.
@article{osti_21067687,
title = {Effect of magnetic field on mechanics of nonmagnetic crystals: The nature of magnetoplasticity},
author = {Buchachenko, A. L.},
abstractNote = {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.},
doi = {10.1134/S1063776106050116},
journal = {Journal of Experimental and Theoretical Physics},
number = 5,
volume = 102,
place = {United States},
year = {Mon May 15 00:00:00 EDT 2006},
month = {Mon May 15 00:00:00 EDT 2006}
}