Magnetic contributions in multiferroic gadolinium modified bismuth ferrite ceramics

被引：12
|
作者：
Walker, Julian [1 ]
Mirjanic, Anja [2 ,3 ]
Prah, Uros [2 ,3 ]
Sadl, Matej [2 ,3 ]
Condurache, Oana Andreea [2 ,3 ]
Bencan, Andreja [2 ,3 ]
Rojac, Tadej [2 ,3 ]
Grigoras, Marian [4 ]
Ursic, Hana [2 ,3 ]
机构：
[1] Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, Trondheim, Norway
[2] Jozef Stefan Inst, Elect Ceram Dept, Ljubljana, Slovenia
[3] Jozef Stefan Int Postgrad Sch, Ljubljana, Slovenia
[4] Natl Inst Res & Dev Tech Phys, Iasi, Romania
来源：
SCRIPTA MATERIALIA | 2020年 / 188卷
关键词：
Multiferroics; Ceramics; rare earth modified BiFeO3; Secondary phases; SINGLE-PHASE; BIFEO3; BEHAVIOR; ROBUST;
D O I：
10.1016/j.scriptamat.2020.07.045
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Bi0.88Gd0.12FeO3 multiferroics are of interest for next-generation electronics and are shown with a remnant magnetization 0.2 emu g(-1), coercive field 8 kOe, Curie temperature 370 degrees C and magnetization of 0.7 emu g(-1) at magnetic fields 30 kOe. Scanning probe microscopy confirmed the intrinsic multiferroicity in the perovskite phase with coexistence of ferroelectric/ferroelastic and ferromagnetic domain structures. Strong magnetic hysteresis was produced by thermal cycling to 1000 degrees C due to degeneration of the perovskite phase into iron oxide inclusions, highlighting the importance of processing, thermal history and thermodynamic stability for minimizing the amount of parasitic magnetic secondary phases. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd.
引用
收藏
页码：233 / 237
页数：5
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