Impact of silicon doping on the magnetocaloric effect of MnFeP0.35As0.65 powder

Patryk Włodarczyk , Łukasz Hawełek , Maciej Kowalczyk , M. Kamińska , Przemysław Żaczkiewicz , Marcin Polak , Marek Hreczka , Aleksandra Kolano-Burian


The magnetocaloric effect in the MnFeP0.35As0.65ĝ'xSix intermetallic compounds, prepared via solid-state sintering was studied. Adiabatic temperature and magnetic entropy changes were obtained in order to characterize these compounds. The substitution of silicon for arsenic leads to a significant enhancement of the magnetocaloric effect for silicon amount x Combining double low line 0.11. The adiabatic temperature change increased from 2.3 to 3.3 K for the magnetic field change from 0 to 1.7 T. This improvement has been correlated with the increase of crystalline cell volume and change of lattice constants. Additionally, the structure of pure MnFeP0.33As0.67 has been modeled in order to check the spin alignment within the framework of ferromagnetic collinear model. © 2016 Elsevier Masson SAS.
Author Patryk Włodarczyk - [Instytut Metali Nieżelaznych (IMN)]
Patryk Włodarczyk,,
- Instytut Metali Nieżelaznych
, Łukasz Hawełek - [Instytut Metali Nieżelaznych (IMN)]
Łukasz Hawełek,,
- Instytut Metali Nieżelaznych
, Maciej Kowalczyk ZMKF
Maciej Kowalczyk,,
- Division of Construction and Functional Materials
, M. Kamińska - Instytut Metali Nieżelaznych (IMN)
M. Kamińska,,
, Przemysław Żaczkiewicz - Instytut Metali Nieżelaznych (IMN)
Przemysław Żaczkiewicz,,
, Marcin Polak - Instytut Metali Nieżelaznych (IMN)
Marcin Polak,,
, Marek Hreczka - Instytut Metali Nieżelaznych (IMN)
Marek Hreczka,,
, Aleksandra Kolano-Burian - Instytut Metali Nieżelaznych (IMN)
Aleksandra Kolano-Burian,,
Journal seriesSolid State Sciences, ISSN 1293-2558
Issue year2016
Publication size in sheets0.5
Keywords in EnglishCrystal structure; Fe2P-type compounds; Magnetic properties; Magnetocaloric effect; MnFePAs
Languagepl polski
Score (nominal)25
ScoreMinisterial score = 25.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 25.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 1.811 (2) - 2016=1.894 (5)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.