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Title: Thermodynamics of multicaloric effects in multiferroic materials: application to metamagnetic shape-memory alloys and ferrotoroidics

Abstract

In this paper, we develop a general thermodynamic framework to investigate multicaloric effects in multiferroic materials. This is applied to the study of both magnetostructural and magnetoelectric multiferroics. Landau models with appropriate interplay between the corresponding ferroic properties (order parameters) are proposed for metamagnetic shape-memory and ferrotoroidic materials, which, respectively, belong to the two classes of multiferroics. For each ferroic property, caloric effects are quantified by the isothermal entropy change induced by the application of the corresponding thermodynamically conjugated field. The multicaloric effect is obtained as a function of the two relevant applied fields in each class of multiferroics. It is further shown that multicaloric effects comprise the corresponding contributions from caloric effects associated with each ferroic property and the cross-contribution arising from the interplay between these ferroic properties. Finally, this article is part of the themed issue ‘Taking the temperature of phase transitions in cool materials’.

Authors:
ORCiD logo [1];  [1];  [2]
  1. Univ. of Barcelona (Spain). Faculty of Physics. Dept. of Structure and Constituents of Matter
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Barcelona (Spain)
Sponsoring Org.:
USDOE; Interministerial Commission of Science and Technology (CICyT) (Spain)
OSTI Identifier:
1338758
Report Number(s):
LA-UR-16-20640
Journal ID: ISSN 1364-503X
Grant/Contract Number:  
AC52-06NA25396; MAT2013-40590-P
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Philosophical Transactions of the Royal Society. A, Mathematical, Physical and Engineering Sciences
Additional Journal Information:
Journal Volume: 374; Journal Issue: 2074; Journal ID: ISSN 1364-503X
Publisher:
Royal Society
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; caloric effects; multiferroics; magnetoelectric; magnetostructural; thermodynamics; solid-state physics

Citation Formats

Planes, Antoni, Castán, Teresa, and Saxena, Avadh. Thermodynamics of multicaloric effects in multiferroic materials: application to metamagnetic shape-memory alloys and ferrotoroidics. United States: N. p., 2016. Web. doi:10.1098/rsta.2015.0304.
Planes, Antoni, Castán, Teresa, & Saxena, Avadh. Thermodynamics of multicaloric effects in multiferroic materials: application to metamagnetic shape-memory alloys and ferrotoroidics. United States. doi:10.1098/rsta.2015.0304.
Planes, Antoni, Castán, Teresa, and Saxena, Avadh. Mon . "Thermodynamics of multicaloric effects in multiferroic materials: application to metamagnetic shape-memory alloys and ferrotoroidics". United States. doi:10.1098/rsta.2015.0304. https://www.osti.gov/servlets/purl/1338758.
@article{osti_1338758,
title = {Thermodynamics of multicaloric effects in multiferroic materials: application to metamagnetic shape-memory alloys and ferrotoroidics},
author = {Planes, Antoni and Castán, Teresa and Saxena, Avadh},
abstractNote = {In this paper, we develop a general thermodynamic framework to investigate multicaloric effects in multiferroic materials. This is applied to the study of both magnetostructural and magnetoelectric multiferroics. Landau models with appropriate interplay between the corresponding ferroic properties (order parameters) are proposed for metamagnetic shape-memory and ferrotoroidic materials, which, respectively, belong to the two classes of multiferroics. For each ferroic property, caloric effects are quantified by the isothermal entropy change induced by the application of the corresponding thermodynamically conjugated field. The multicaloric effect is obtained as a function of the two relevant applied fields in each class of multiferroics. It is further shown that multicaloric effects comprise the corresponding contributions from caloric effects associated with each ferroic property and the cross-contribution arising from the interplay between these ferroic properties. Finally, this article is part of the themed issue ‘Taking the temperature of phase transitions in cool materials’.},
doi = {10.1098/rsta.2015.0304},
journal = {Philosophical Transactions of the Royal Society. A, Mathematical, Physical and Engineering Sciences},
number = 2074,
volume = 374,
place = {United States},
year = {Mon Jul 11 00:00:00 EDT 2016},
month = {Mon Jul 11 00:00:00 EDT 2016}
}

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Cited by: 5 works
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Works referenced in this record:

Giant Magnetocaloric Effect in Gd5(Si2Ge2)
journal, June 1997