自旋轨道矩驱动幅度频率可调式纳米振荡器

	自旋轨道矩驱动幅度频率可调式纳米振荡器
翻译题名	The invention relates to a spin-orbit torque driven amplitude-frequency adjustable nano oscillator
申请号	CN202211546640.3
	2023-04-04
公开（公告）号	CN115915905A
公开日期	2023-04-04
摘要	本发明的技术方案是提供了一种自旋轨道矩驱动幅度频率可调式纳米振荡器，其特征在于，包括被薄氧化势垒层隔开的两个铁磁层所构成的磁隧道结，并且该磁隧道结堆叠在底部重金属层上；通入重金属层的电流产生自旋流并作用于自由层磁矩，钉扎层与自由层的相对磁化方向变化即表现为接入电路的电阻阻值变化，进而产生微波信号。本发明将自旋轨道矩磁隧道结与电压调控磁各向异性效应相结合构建自旋纳米振荡器，以减少传统结构中由电流引起的欧姆损耗，并实现对振幅和频率的精确调控，满足新一代磁性振荡器件的低功耗、高频震荡、高可调性等性能需求。作为信源，该器件能通过控制不同输入端口的信号分别实现载波的频率调制与幅度调制。
翻译摘要	The technical solution of the present invention is to provide a spin-orbit torque-driven amplitude-frequency-adjustable nano oscillator, which is characterized by comprising a magnetic tunnel junction composed of two ferromagnetic layers separated by a thin oxidation barrier layer, and the magnetic tunnel junction is stacked on a bottom heavy metal layer; The current passing through the heavy metal layer generates a spin current which acts on the magnetic moment of the free layer, and the change of the relative magnetization direction of the pinning layer and the free layer is represented as the change of the resistance value of the resistor connected to the circuit, thereby generating a microwave signal. The present invention combines the spin orbit moment magnetic tunnel junction and the voltage regulation magnetic anisotropy effect to construct the spin nanometer oscillator, so as to reduce the ohmic loss caused by current in traditional structure, realize the precise regulation of amplitude and frequency and meet the performance requirements of new generation magnetic oscillator, such as low power consumption, high frequency oscillation, high adjustability, etc. As an information source, the device can respectively realize the frequency modulation and amplitude modulation of the carrier wave by controlling the signals of different input ports.
当前权利人	上海科技大学
专利代理人	翁若莹 ; 柏子雵
代理机构	上海申汇专利代理有限公司 31001
专利申请人	上海科技大学
	李晓扬; 付震霄; 杨雨梦
公开国别	中国
公开国别简称	CN
IPC 分类号	H10N50//10; H10N50//80
专利有效性	审中
专利类型	发明申请
专利类型字典	1
当前法律状态	实质审查
简单同族	CN115915905A
扩展同族	CN115915905A
INPADOC 同族	CN115915905A
文献类型	专利
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/294712
专题	信息科学与技术学院_硕士生信息科学与技术学院_PI研究组_杨雨梦组
作者单位	上海科技大学
推荐引用方式 GB/T 7714	李晓扬,付震霄,杨雨梦. 自旋轨道矩驱动幅度频率可调式纳米振荡器. CN202211546640.3[P]. 2023-04-04.