Magnetocaloric effect in hexagonal Yb0.9Mg0.1MnO3

被引：1
|
作者：
Sattibabu, Bhumireddi [1 ]
Bhatnagar, Anil K. [1 ]
机构：
[1] Univ Hyderabad, Sch Engn Sci & Technol, Hyderabad 500046, Andhra Pradesh, India
来源：
MATERIALS LETTERS | 2015年 / 158卷
关键词：
Multiferroics; Ceramics; Magnetic materials; YMNO3;
D O I：
10.1016/j.matlet.2015.05.160
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Polycrystalline hexagonal Yb0.9Mg0.1MnO3 is examined for its magnetic, and magnetocaloric properties. Antiferromagnetic ordering of the Mn sublattice occurs at T-N=88 K. At low temperature (similar to 3.5 K), the compound shows ferromagnetic (FM) ordering attributed to Yb in site 2a. A Schottky anomaly related to the Yb moments due to Mn molecular field at temperature similar to 6.7 K. The values of isothermal magnetic entropy change 1.98J mol(-1)K(-1), adiabatic temperature change 16K and relative cooling power 26 J/mol for a field change of 10 T are also appreciable so as to consider Yb0.9Mg0.1MnO3 as a magnetic refrigerant at low temperatures. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：395 / 398
页数：4
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