Excitation fluence dependence of spin-wave dynamics and intrinsic gilbert damping in epitaxial co2feal film
文献类型：期刊论文
| 作者 | Li,Shufa1,2,3; Cheng,Chuyuan3; Meng,Kangkang4; Chen,Chunlei1 |
| 刊名 | Japanese journal of applied physics
 |
| 出版日期 | 2019-03-27 |
| 卷号 | 58期号:4 |
| ISSN号 | 0021-4922 |
| 关键词 | Spin wave Pump-probe Ultrafast dynamics Heusler alloys |
| DOI | 10.7567/1347-4065/ab07eb |
| 通讯作者 | Li,shufa() |
| 英文摘要 | Abstract spin wave dynamics and transient reflectivity measurement in co2feal film are studied under different excitation fluences by the time resolved pump-probe experiment with the external field applied normal to the film. we found that the excitation fluence has only a slight influence on the frequency of the spin wave, but greatly modulates the lifetime and intrinsic gilbert damping. the lifetime of spin wave decreases but that of coherent acoustic phonon increases with increasing excitation fluence. the enhancement of electron–phonon scattering with increasing excitation fluence is proven to the dominant origin of the enhancement of the intrinsic gilbert damping. |
| 语种 | 英语 |
| 出版者 | IOP Publishing |
| WOS记录号 | IOP:0021-4922-58-4-AB07EB |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2429470 |
| 专题 | 半导体研究所 |
| 通讯作者 | Li,Shufa |
| 作者单位 | 1.College of Electronics and Information Engineering, Guangdong Ocean University, Zhanjiang, Guangdong 524000, People’s Republic of China 2.Dongguan Neutron Science Center, Dongguan 523803, People’s Republic of China 3.State-Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-Sen University, Guangzhou, Guangdong 510275, People’s Republic of China 4.State-Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Li,Shufa,Cheng,Chuyuan,Meng,Kangkang,et al. Excitation fluence dependence of spin-wave dynamics and intrinsic gilbert damping in epitaxial co2feal film[J]. Japanese journal of applied physics,2019,58(4). |
| APA | Li,Shufa,Cheng,Chuyuan,Meng,Kangkang,&Chen,Chunlei.(2019).Excitation fluence dependence of spin-wave dynamics and intrinsic gilbert damping in epitaxial co2feal film.Japanese journal of applied physics,58(4). |
| MLA | Li,Shufa,et al."Excitation fluence dependence of spin-wave dynamics and intrinsic gilbert damping in epitaxial co2feal film".Japanese journal of applied physics 58.4(2019). |
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来源：半导体研究所
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