標題: Heteroepitaxy of Co-Based Heusler Compound/Muscovite for Flexible Spintronics
作者: Chen, Yi-Cheng
Yen, Min
Lai, Yu-Hong
Markou, Anastasios
Zhang, Liguo
Chin, Yi-Ying
Lin, Hong-Ji
Chen, Chien-Te
Felser, Claudia
Chu, Ying-Hao
交大名義發表
材料科學與工程學系
National Chiao Tung University
Department of Materials Science and Engineering
關鍵字: Heusler compound;muscovite;flexible;magnetism;spintronics
公開日期: 25-九月-2019
摘要: Materials with high spin-polarization play an important role in the development of spintronics. Co-based Heusler compounds are a promising candidate for practical applications because of their high Curie temperature and tunable half-metallicity. However, it is a challenge to integrate Heusler compounds into thin film heterostructures because of the lack of control on crystallinity and chemical disorder, critical factors of novel behaviors. Here, muscovite is introduced as a growth substrate to fabricate epitaxial Co2MnGa films with mechanical flexibility. The feature of heteroepitaxy is evidenced by the results of X-ray diffraction and transmission electron microscopy. Moreover, high chemical ordering with superior properties is delivered according to the observation of large Hall conductivity (680 Omega(-1) cm(-1)) and highly saturated magnetic moment (similar to 3.93 mu(B)/f.u.), matching well with bulk crystals. Furthermore, the excellence of magnetic and electrical properties is retained under the various mechanical bending conditions. Such a result suggests that the development of Co2MnGa/muscovite heteroepitaxy provides not only a pathway to the thin film heterostructure based on high-quality Heusler compounds but also a new aspect of spintronic applications on flexible substrates.
URI: http://dx.doi.org/10.1021/acsami.9b12219
http://hdl.handle.net/11536/153090
ISSN: 1944-8244
DOI: 10.1021/acsami.9b12219
期刊: ACS APPLIED MATERIALS & INTERFACES
Volume: 11
Issue: 38
起始頁: 35162
結束頁: 35168
顯示於類別:期刊論文