English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Direct and Indirect Determination of the Magnetocaloric Effect in the Heusler Compound Ni1.7Pt0.3MnGa

dos Reis, R. D., Caron, L., Singh, S., Felser, C., & Nicklas, M. (2021). Direct and Indirect Determination of the Magnetocaloric Effect in the Heusler Compound Ni1.7Pt0.3MnGa. Entropy, 23(10): 1273, pp. 1-10. doi:10.3390/e23101273.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
dos Reis, Ricardo D.1, Author              
Caron, Luana2, Author              
Singh, Sanjay2, Author              
Felser, Claudia3, Author              
Nicklas, Michael4, Author              
Affiliations:
1Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              
4Michael Nicklas, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863472              

Content

show
hide
Free keywords: -
 Abstract: Magnetic shape-memory materials are potential magnetic refrigerants, due the caloric properties of their magnetic-field-induced martensitic transformation. The first-order nature of the martensitic transition may be the origin of hysteresis effects that can hinder practical applications. Moreover, the presence of latent heat in these transitions requires direct methods to measure the entropy and to correctly analyze the magnetocaloric effect. Here, we investigated the magnetocaloric effect in the Heusler material Ni1.7Pt0.3MnGa by combining an indirect approach to determine the entropy change from isofield magnetization curves and direct heat-flow measurements using a Peltier calorimeter. Our results demonstrate that the magnetic entropy change & UDelta;S in the vicinity of the first-order martensitic phase transition depends on the measuring method and is directly connected with the temperature and field history of the experimental processes.</p>

Details

show
hide
Language(s): eng - English
 Dates: 2021-09-212021-09-21
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000712110300001
DOI: 10.3390/e23101273
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Entropy
  Abbreviation : Entropy
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Basel : MDPI
Pages: - Volume / Issue: 23 (10) Sequence Number: 1273 Start / End Page: 1 - 10 Identifier: ISSN: 1099-4300
CoNE: https://pure.mpg.de/cone/journals/resource/110978984445793