Fe doping effect on EuTiO3: The magnetic properties and giant magnetocaloric effect

The magnetic properties and magnetocaloric effect for EuTi1‐xFexO3 (x = 0.05, 0.1) compounds are investigated. When a part of Ti4+ions were substituted by Fe ions, the AFM ordering can be significantly changed to be FM. The EuTi1‐xFexO3 (x = 0.05, 0.1) compounds exhibit a PM to FM transition with de...

Full description

Saved in:
Bibliographic Details
Published in:International journal of applied ceramic technology 2019-07, Vol.16 (4), p.1606-1611
Main Authors: Zhang, Wei, Mo, Zhao‐Jun, Hao, ZhiHong, Shen, Jun, Luo, Jia‐Wei, Chang, Rui‐Jiang, Li, Lan
Format: Article
Language:English
Subjects:
Curie temperature
magnetic entropy change
magnetic phase transformation
Magnetic properties
Magnetic transitions
Magnetism
magnetocaloric effect
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The magnetic properties and magnetocaloric effect for EuTi1‐xFexO3 (x = 0.05, 0.1) compounds are investigated. When a part of Ti4+ions were substituted by Fe ions, the AFM ordering can be significantly changed to be FM. The EuTi1‐xFexO3 (x = 0.05, 0.1) compounds exhibit a PM to FM transition with decreasing temperature and the Curie temperature is 6 K. Under the field changes of 1 T, −ΔSMmax and RC are valued to be 10.1 J/kg K and 50.2 J/kg for EuTi0.95Fe0.05O3; 9.6 J/kg K and 47.7 J/kg for EuTi0.9Fe0.1O3, without magnetic and thermal hysteresis. RC is almost twice as much as EuTiO3 (27 J/kg) as substitution of Fe3+ ions for Ti4+ions, which may be attributed to the magnetic transition (AFM to FM). Therefore, the giant −ΔSMmax and large RC suggest the EuTi1‐xFexO3 compounds are good materials for magnetic refrigerant.
ISSN:1546-542X
1744-7402
DOI:10.1111/ijac.13180