Intrinsic hard magnetic properties of Sm(Fe,Co)12-xTix compound with ThMn12 structure

被引：21
作者：
Makurenkova, A. [1 ,2 ]
Ogawa, D. [1 ]
Tozman, P. [1 ,3 ]
Okamoto, S. [4 ]
Nikitin, S. [2 ]
Hirosawa, S. [1 ]
Hono, K. [1 ]
Takahashi, Y. K. [1 ]
机构：
[1] Natl Inst Mat Sci, Elements Strategy Initiat Ctr Magnet Mat ESICMM, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
[2] Lomonosov Moscow State Univ, Leninskie Gory 1, Moscow 119991, Russia
[3] Natl Inst Mat Sci NIMS, Int Ctr Young Scientists ICYS, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan
[4] Tohoku Univ, Inst Multidisciplinary Res Adv Mat IMRAM, Sendai, Miyagi 9808577, Japan
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 861卷
关键词：
Permanent magnet; ThMn12; structure; Magnetic properties; Sm(Fe; Co; Ti)(12); RARE-EARTH; MAGNETOCRYSTALLINE ANISOTROPY; TRANSITION; SUBSTITUTION; FILMS; ND; SM;
D O I：
10.1016/j.jallcom.2020.158477
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Sm-1.1(Fe0.8Co0.2)(1)Ti-2-x(x) thin films were grown epitaxially with various Ti contents (x = 0, 0.4, 0.6, 0.9, and 1) to investigate the effects of Ti on the intrinsic hard magnetic properties and phase stability. A single ThMn12-type structure with the (001) texture was obtained for x up to 0.9. A further increase in the Ti content led to a multiphase structure in the Sm1.1(Fe0.8Co0.2)(11)Ti-1 film; this was in contrast to the behavior in the bulk, where x = 1 is necessary to form a single ThMn12-type structure. Meanwhile, increasing the Ti content from x = 0-0.6 in the Sm-1.1(Fe0.8Co0.2)(12)Ti--x(x) thin films decreased the saturation magnetization, anisotropy field, and Curie temperature from 1.84 T to 1.55 T, 12-8.7 T, and 800-730 K, respectively. This thin film model shows that the Sm(Fe0.8Co0.2)(12)Ti--x(x) compounds can compete with Nd2Fe14B at 300 K when phase stabilization is achieved at reduced Ti content, for x <= 0.5. (C) 2020 Elsevier B.V. All rights reserved.
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页数：7
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