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|Title: ||Magnetic and magnetocaloric properties of SmxGd1-xMn2Si2|
|Authors: ||KUMAR, P|
|Keywords: ||room-temperature applications|
|Issue Date: ||2007|
|Publisher: ||ELSEVIER SCIENCE SA|
|Citation: ||JOURNAL OF ALLOYS AND COMPOUNDS, 427(1-2), 42-45|
|Abstract: ||The magnetic and magnetocaloric properties of Gd1-xSmxMn2Si2 compounds with 0 < x <= I have been studied to determine their suitability as magnetic refrigerant materials. The rare earth ordering temperatures are found to decrease from 60 K for x = 0 to 37 K for x = 1. The temperature variations of magnetization under 'field-cooled' and 'zero-field-cooled' conditions are found to differ slightly, indicating a small thermomagnetic irreversibility. Magnetocaloric effect is calculated in terms of isothermal magnetic entropy change (Delta S-M) using the magnetization isotherms. The maximum values of Delta S-M are found to be 5.9 J kg(-1) K-1 in GdMn2Si2, and 3.4 J kg(-1) K-1 in SmMn2Si2. (c) 2006|
|Appears in Collections:||Article|
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