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1. 发明申请

US20140070896A1 MAGNETIC FIELD FEEDBACK BASED SPINTRONIC OSCILLATOR 有权
标题翻译：基于磁场反馈的旋转振荡器
公开(公告)号：US20140070896A1
公开(公告)日：2014-03-13
申请号：US14023155
申请日：2013-09-10
申请人： Indian Institute of Technology Bombay
发明人： Ashwin Tulapurkar , Chakkalakal Tomy , Yoshishige Suzuki , Dinesh Kumar , Katsunori Konishi
IPC分类号： H03B15/00
CPC分类号： H03B15/006
摘要： The embodiments herein relate to a magnetic field feedback based spintronic microwave oscillator driven by DC current. The microwave oscillator works based on a magnetic tunnel junction structure connected to a feedback waveguide. Any fluctuation in the magnetization direction of free magnetization layer of MTJ drives an oscillating current through the feedback waveguide which in turn exerts an oscillating magnetic field on the free layer and amplifies the magnetization fluctuations. If the DC current passing through the MTJ is more than a critical value, continuous processing states of the magnetization are possible. The critical current is independent of the thickness and magnetization of the free layer. A MTJ can be driven into spontaneous oscillations with DC current and magnetic field feedback circuit and can act as a spintronic microwave oscillator.
摘要翻译：本文的实施例涉及由DC电流驱动的基于磁场反馈的自旋电子微波振荡器。微波振荡器基于连接到反馈波导的磁隧道结结构工作。 MTJ的自由磁化层的磁化方向的任何波动驱动通过反馈波导的振荡电流，反馈波导又在自由层上施加振荡磁场并放大磁化波动。如果通过MTJ的直流电流大于临界值，则磁化的连续处理状态是可能的。临界电流与自由层的厚度和磁化强度无关。 MTJ可以用直流电流和磁场反馈电路驱动到自发振荡中，并可作为自旋电子微波振荡器。

2. 发明授权

US09088243B2 Magnetic field feedback based spintronic oscillator 有权
标题翻译：基于磁场反馈的自旋振荡器
公开(公告)号：US09088243B2
公开(公告)日：2015-07-21
申请号：US14023155
申请日：2013-09-10
申请人： Indian Institute of Technology Bombay
发明人： Ashwin Tulapurkar , Chakkalakal Tomy , Yoshishige Suzuki , Dinesh Kumar , Katsunori Konishi
IPC分类号： H03B15/00
CPC分类号： H03B15/006
摘要： The embodiments herein relate to a magnetic field feedback based spintronic microwave oscillator driven by DC current. The microwave oscillator works based on a magnetic tunnel junction structure connected to a feedback waveguide. Any fluctuation in the magnetization direction of free magnetization layer of MTJ drives an oscillating current through the feedback waveguide which in turn exerts an oscillating magnetic field on the free layer and amplifies the magnetization fluctuations. If the DC current passing through the MTJ is more than a critical value, continuous processing states of the magnetization are possible. The critical current is independent of the thickness and magnetization of the free layer. A MTJ can be driven into spontaneous oscillations with DC current and magnetic field feedback circuit and can act as a spintronic microwave oscillator.
摘要翻译：本文的实施例涉及由DC电流驱动的基于磁场反馈的自旋电子微波振荡器。微波振荡器基于连接到反馈波导的磁隧道结结构工作。 MTJ的自由磁化层的磁化方向的任何波动驱动通过反馈波导的振荡电流，反馈波导又在自由层上施加振荡磁场并放大磁化波动。如果通过MTJ的直流电流大于临界值，则磁化的连续处理状态是可能的。临界电流与自由层的厚度和磁化强度无关。 MTJ可以用直流电流和磁场反馈电路驱动到自发振荡中，并可作为自旋电子微波振荡器。

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