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Title: Barocaloric and magnetocaloric effects in (MnNiSi) 1-x(FeCoGe) x

Abstract

(MnNiSi) 1-x(FeCoGe) x undergoes a magnetostructural phase transition near room temperature that is acutely sensitive to applied hydrostatic pressure, which presents as a marked shift in the martensitic transition temperature (T M) by about –7.5 K/kbar. The magnetostructural transition can therefore be induced by applied hydrostatic pressure or by magnetic field. The barocaloric and magnetocaloric effects were measured across T M (for the sample with x = 0.38), and the corresponding entropy changes were +74 J/kg K (P = 2.7 kbar) and –58 J/kg K (μ 0 H = 5 T), respectively. It was observed here that the transition entropy change increases with pressure, which results in an enhancement of the barocaloric effect. Our measurements show that the transformed phase fraction associated with magnetostructural transition does not depend on pressure and, therefore, this enhancement cannot be attributed to a pressure-assisted completion of the phase transformation.

Authors:
 [1]; ORCiD logo [2];  [1];  [1];  [1];  [3];  [1];  [1]; ORCiD logo [2]; ORCiD logo [2];  [3];  [1]
  1. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy
  2. Polytechnic Univ. of Catalonia, Barcelona (Spain). Dept. of Physics. Barcelona Research Center in Multiscale Science and Engineering
  3. Southern Illinois Univ., Carbondale, IL (United States). Dept. of Physics
Publication Date:
Research Org.:
Southern Illinois Univ., Carbondale, IL (United States); Louisiana State Univ., Baton Rouge, LA (United States); Polytechnic Univ. of Catalonia, Barcelona (Spain)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF); Interministerial Commission of Science and Technology (CICYT) (Spain); Catalan Government
OSTI Identifier:
1510947
Alternate Identifier(s):
OSTI ID: 1416647
Grant/Contract Number:  
FG02-06ER46291; FG02-13ER46946; FG02-07ER46420; SC0010521; 1306392; FIS2014-54734-P; 2014SGR-00581
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 112; Journal Issue: 2; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; magnetism; hydrostatics; chemical elements; thermodynamic measurements and instrumentation; phase transitions; thermodynamic properties; entropy; ferromagnetic materials; thermodynamic states and processes; thermal instruments

Citation Formats

Samanta, Tapas, Lloveras, Pol, Us Saleheen, Ahmad, Lepkowski, Daniel L., Kramer, Emily, Dubenko, Igor, Adams, Philip W., Young, David P., Barrio, Maria, Tamarit, Josep Ll., Ali, Naushad, and Stadler, Shane. Barocaloric and magnetocaloric effects in (MnNiSi)1-x(FeCoGe)x. United States: N. p., 2018. Web. doi:10.1063/1.5011743.
Samanta, Tapas, Lloveras, Pol, Us Saleheen, Ahmad, Lepkowski, Daniel L., Kramer, Emily, Dubenko, Igor, Adams, Philip W., Young, David P., Barrio, Maria, Tamarit, Josep Ll., Ali, Naushad, & Stadler, Shane. Barocaloric and magnetocaloric effects in (MnNiSi)1-x(FeCoGe)x. United States. doi:10.1063/1.5011743.
Samanta, Tapas, Lloveras, Pol, Us Saleheen, Ahmad, Lepkowski, Daniel L., Kramer, Emily, Dubenko, Igor, Adams, Philip W., Young, David P., Barrio, Maria, Tamarit, Josep Ll., Ali, Naushad, and Stadler, Shane. Thu . "Barocaloric and magnetocaloric effects in (MnNiSi)1-x(FeCoGe)x". United States. doi:10.1063/1.5011743. https://www.osti.gov/servlets/purl/1510947.
@article{osti_1510947,
title = {Barocaloric and magnetocaloric effects in (MnNiSi)1-x(FeCoGe)x},
author = {Samanta, Tapas and Lloveras, Pol and Us Saleheen, Ahmad and Lepkowski, Daniel L. and Kramer, Emily and Dubenko, Igor and Adams, Philip W. and Young, David P. and Barrio, Maria and Tamarit, Josep Ll. and Ali, Naushad and Stadler, Shane},
abstractNote = {(MnNiSi)1-x(FeCoGe)x undergoes a magnetostructural phase transition near room temperature that is acutely sensitive to applied hydrostatic pressure, which presents as a marked shift in the martensitic transition temperature (TM) by about –7.5 K/kbar. The magnetostructural transition can therefore be induced by applied hydrostatic pressure or by magnetic field. The barocaloric and magnetocaloric effects were measured across TM (for the sample with x = 0.38), and the corresponding entropy changes were +74 J/kg K (P = 2.7 kbar) and –58 J/kg K (μ0 H = 5 T), respectively. It was observed here that the transition entropy change increases with pressure, which results in an enhancement of the barocaloric effect. Our measurements show that the transformed phase fraction associated with magnetostructural transition does not depend on pressure and, therefore, this enhancement cannot be attributed to a pressure-assisted completion of the phase transformation.},
doi = {10.1063/1.5011743},
journal = {Applied Physics Letters},
number = 2,
volume = 112,
place = {United States},
year = {2018},
month = {1}
}

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Works referenced in this record:

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


Recent developments in magnetocaloric materials
journal, May 2005

  • Gschneidner, K. A.; Pecharsky, V. K.; Tsokol, A. O.
  • Reports on Progress in Physics, Vol. 68, Issue 6, p. 1479-1539
  • DOI: 10.1088/0034-4885/68/6/R04