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Title: Magnetoelectric effect and magnetic exchange in classical spin ice

Abstract

In this article we propose a simple mechanism through which elementary excitations in spin ice, namely magnetic monopoles, lead to spontaneous macroscopic electric polarization through breaking of space inversion symmetry in the spin configuration. We show either the direction or the magnitude of associated electric polarization vector can be conserved in hopping, but both cannot be simultaneous constant of motion, while magnetic charge is constant throughout its movement. A plausible explanation for abnormally large time scale of relaxation for some monopoles reported by Giblin is also demonstrated.

Authors:
;  [1]
  1. Department of Physics, Indian Institute of Technology, Kanpur-208016 (India)
Publication Date:
OSTI Identifier:
22490567
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CONFIGURATION; ELECTRICAL PROPERTIES; EXCITATION; ICE; MAGNETIC MONOPOLES; MAGNETIC PROPERTIES; POLARIZATION; RELAXATION; SPIN; SYMMETRY BREAKING

Citation Formats

Sarkar, Aranyak, and Mukhopadhyay, Soumik. Magnetoelectric effect and magnetic exchange in classical spin ice. United States: N. p., 2015. Web. doi:10.1063/1.4918169.
Sarkar, Aranyak, & Mukhopadhyay, Soumik. Magnetoelectric effect and magnetic exchange in classical spin ice. United States. https://doi.org/10.1063/1.4918169
Sarkar, Aranyak, and Mukhopadhyay, Soumik. 2015. "Magnetoelectric effect and magnetic exchange in classical spin ice". United States. https://doi.org/10.1063/1.4918169.
@article{osti_22490567,
title = {Magnetoelectric effect and magnetic exchange in classical spin ice},
author = {Sarkar, Aranyak and Mukhopadhyay, Soumik},
abstractNote = {In this article we propose a simple mechanism through which elementary excitations in spin ice, namely magnetic monopoles, lead to spontaneous macroscopic electric polarization through breaking of space inversion symmetry in the spin configuration. We show either the direction or the magnitude of associated electric polarization vector can be conserved in hopping, but both cannot be simultaneous constant of motion, while magnetic charge is constant throughout its movement. A plausible explanation for abnormally large time scale of relaxation for some monopoles reported by Giblin is also demonstrated.},
doi = {10.1063/1.4918169},
url = {https://www.osti.gov/biblio/22490567}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1665,
place = {United States},
year = {Wed Jun 24 00:00:00 EDT 2015},
month = {Wed Jun 24 00:00:00 EDT 2015}
}