Academic Journal
Field-free spin hall oscillator based on giant magnetoresistance effect and its potential for electrical synchronization
| Title: | Field-free spin hall oscillator based on giant magnetoresistance effect and its potential for electrical synchronization |
|---|---|
| Authors: | Jialin Shi, Guoshuo Peng, Chenglong Zhang, Zhenhu Jin, Jiamin Chen |
| Source: | Scientific Reports, Vol 15, Iss 1, Pp 1-10 (2025) |
| Publisher Information: | Nature Portfolio, 2025. |
| Publication Year: | 2025 |
| Collection: | LCC:Medicine LCC:Science |
| Subject Terms: | Spin Hall nano oscillator, Field free, High power, Electrical synchronization, Medicine, Science |
| More Details: | Abstract Spin Hall nano oscillators (SHNOs) have attracted much attention in recent years due to their great potential for applications in neuromorphic computation. However, the output power of SHNOs is very low and an external magnetic field is required to generate microwave signal continuously, which hinders the further development of SHNOs. In order to solve the two problems, we propose a new-type SHNO based on the giant magnetoresistance (GMR) effect, while retaining the advantage of the simple fabrication process of the conventional oscillator. The huge magnetoresistance ratio provided by the GMR effect can increase the power of this novel oscillator by several orders of magnitude. In addition, by designing the magnetization easy axis of the free and reference layers in the GMR film layers, this novel oscillator can operate effectively without the need of and external magnetic field. Furthermore, we have preliminarily investigated the feasibility of electrical synchronization in the field of SHNOs from the perspective of microspin simulation and found that parallel connection can provide stronger coupling strength compared with series connection. Our research solves the core problems that currently hinder the further development of SHNOs, facilitating the realization and application of large-scale synchronized array of SHNOs. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-025-90627-7 |
| Access URL: | https://doaj.org/article/ac641fee73f748d4bea6a92b71c452fd |
| Accession Number: | edsdoj.641fee73f748d4bea6a92b71c452fd |
| Database: | Directory of Open Access Journals |
| Full text is not displayed to guests. | Login for full access. |
| ISSN: | 20452322 |
|---|---|
| DOI: | 10.1038/s41598-025-90627-7 |
| Published in: | Scientific Reports |
| Language: | English |