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

Journal Article · · Philosophical Transactions of the Royal Society. A, Mathematical, Physical and Engineering Sciences
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

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’.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Univ. of Barcelona (Spain)
Sponsoring Organization:
USDOE; Interministerial Commission of Science and Technology (CICyT) (Spain)
Grant/Contract Number:
AC52-06NA25396; MAT2013-40590-P
OSTI ID:
1338758
Report Number(s):
LA-UR-16-20640
Journal Information:
Philosophical Transactions of the Royal Society. A, Mathematical, Physical and Engineering Sciences, Vol. 374, Issue 2074; ISSN 1364-503X
Publisher:
Royal SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 23 works
Citation information provided by
Web of Science

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Cited By (9)

Materials with Giant Mechanocaloric Effects: Cooling by Strength journal December 2016
Making a Cool Choice: The Materials Library of Magnetic Refrigeration journal July 2019
Energy Applications of Magnetocaloric Materials journal March 2020
Novel mechanocaloric materials for solid-state cooling applications journal December 2019
Giant multicaloric response of bulk Fe 49 Rh 51 journal March 2017
Reversible low-field magnetocaloric effect in Ni-Mn-In-based Heusler alloys journal August 2019
Multicaloric materials and effects journal April 2018
Multicaloric materials and effects text January 2018
Novel Mechanocaloric Materials for Solid-State Cooling Applications preprint January 2019