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 |