Near fifty percent sodium substituted lanthanum manganites - A potential magnetic refrigerant for room temperature applications

N. Sethulakshmi, I. A. Al-Omari, K. G. Suresh, M. R. Anantharaman*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةمراجعة النظراء

9 اقتباسات (Scopus)

ملخص

Nearly half of lanthanum sites in lanthanum manganites were substituted with monovalent ion-sodium and the compound possessed distorted orthorhombic structure. Ferromagnetic ordering at 300 K and the magnetic isotherms at different temperature ranges were analyzed for estimating magnetic entropy variation. Magnetic entropy change of 1.5 J·kg-1·K -1 was observed near 300 K. An appreciable magnetocaloric effect was also observed for a wide range of temperatures near 300 K for small magnetic field variation. Heat capacity was measured for temperatures lower than 300 K and the adiabatic temperature change increases with increase in temperature with a maximum of 0.62 K at 280 K.

اللغة الأصليةEnglish
رقم المقال092407
دوريةApplied Physics Letters
مستوى الصوت104
رقم الإصدار9
المعرِّفات الرقمية للأشياء
حالة النشرPublished - مارس 3 2014

ASJC Scopus subject areas

  • ???subjectarea.asjc.3100.3101???

بصمة

أدرس بدقة موضوعات البحث “Near fifty percent sodium substituted lanthanum manganites - A potential magnetic refrigerant for room temperature applications'. فهما يشكلان معًا بصمة فريدة.

قم بذكر هذا