Understanding the role played by Fe on the tuning of magnetocaloric effect in Tb5 Si2 Ge2

A. M. Pereira; A. M. Dos Santos; C. Magen; J. B. Sousa; P. A. Algarabel; Y. Ren; C. Ritter; L. Morellon; M. R. Ibarra; J. P. Araújo

doi:10.1063/1.3567920

Understanding the role played by Fe on the tuning of magnetocaloric effect in Tb₅ Si₂ Ge₂

A. M. Pereira, A. M. Dos Santos, C. Magen, J. B. Sousa, P. A. Algarabel, Y. Ren, C. Ritter, L. Morellon, M. R. Ibarra, J. P. Araújo

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

In this letter, it is shown that when replacing Ge by Fe in Tb₅ Si₂ Ge₂ the structural transition still occurs and enhances the magnetocaloric effect (MCE) (up to 66%) with maximum of MCE at a critical Fe amount where the magnetic and structural transitions become fully coupled. It is observed that Fe concentration is able to mimic the effect of external pressure as it induces a complex microstructure, that tunes long range strain fields. This knowledge is crucial for the development of strategies toward materials with improved performance for efficient magnetic refrigeration applications.

Original language	English
Article number	122501
Journal	Applied Physics Letters
Volume	98
Issue number	12
DOIs	https://doi.org/10.1063/1.3567920
State	Published - Mar 21 2011
Externally published	Yes

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title = "Understanding the role played by Fe on the tuning of magnetocaloric effect in Tb5 Si2 Ge2",

abstract = "In this letter, it is shown that when replacing Ge by Fe in Tb5 Si2 Ge2 the structural transition still occurs and enhances the magnetocaloric effect (MCE) (up to 66%) with maximum of MCE at a critical Fe amount where the magnetic and structural transitions become fully coupled. It is observed that Fe concentration is able to mimic the effect of external pressure as it induces a complex microstructure, that tunes long range strain fields. This knowledge is crucial for the development of strategies toward materials with improved performance for efficient magnetic refrigeration applications.",

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T1 - Understanding the role played by Fe on the tuning of magnetocaloric effect in Tb5 Si2 Ge2

AU - Pereira, A. M.

AU - Dos Santos, A. M.

AU - Magen, C.

AU - Sousa, J. B.

AU - Algarabel, P. A.

AU - Ren, Y.

AU - Ritter, C.

AU - Morellon, L.

AU - Ibarra, M. R.

AU - Araújo, J. P.

PY - 2011/3/21

Y1 - 2011/3/21

N2 - In this letter, it is shown that when replacing Ge by Fe in Tb5 Si2 Ge2 the structural transition still occurs and enhances the magnetocaloric effect (MCE) (up to 66%) with maximum of MCE at a critical Fe amount where the magnetic and structural transitions become fully coupled. It is observed that Fe concentration is able to mimic the effect of external pressure as it induces a complex microstructure, that tunes long range strain fields. This knowledge is crucial for the development of strategies toward materials with improved performance for efficient magnetic refrigeration applications.

AB - In this letter, it is shown that when replacing Ge by Fe in Tb5 Si2 Ge2 the structural transition still occurs and enhances the magnetocaloric effect (MCE) (up to 66%) with maximum of MCE at a critical Fe amount where the magnetic and structural transitions become fully coupled. It is observed that Fe concentration is able to mimic the effect of external pressure as it induces a complex microstructure, that tunes long range strain fields. This knowledge is crucial for the development of strategies toward materials with improved performance for efficient magnetic refrigeration applications.

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DO - 10.1063/1.3567920

M3 - Article

AN - SCOPUS:79953842356

SN - 0003-6951

VL - 98

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 12

M1 - 122501

ER -

Understanding the role played by Fe on the tuning of magnetocaloric effect in Tb₅ Si₂ Ge₂

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