Strong linewidth variation for spin-torque nano-oscillators as a function of in-plane magnetic field angle

K. V. Thadani; G. Finocchio; Z.-P. Li; O. Ozatay; J. C. Sankey; I. N. Krivorotov; Y.-T. Cui; R. A. Buhrman; D. C. Ralph

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Strong linewidth variation for spin-torque nano-oscillators as a function of in-plane magnetic field angle

机译：自旋扭矩纳米振荡器的强线宽变化与平面内磁场角的关系

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We measure the microwave signals produced by spin-torque-driven magnetization dynamics excited by direct currents in patterned magnetic multilayer devices at room temperature as a function of the angle of a magnetic field applied in the sample plane. We find strong variations in the frequency linewidth of the signals, with a decrease by more than a factor of 20 as the field is rotated from the magnetic easy axis to the in-plane hard axis. Based on micromagnetic simulations, we identify these variations as due to a transition from spatially incoherent to coherent precession.

机译：我们在室温下测量由带图案的磁性多层设备中的直流电激发的自旋转矩驱动的磁化动力学所产生的微波信号，该微波信号是施加于样品平面的磁场角的函数。我们发现信号的频率线宽变化很大，随着磁场从易磁轴旋转到面内硬轴，减小幅度超过20倍。基于微磁模拟，我们将这些变化识别为归因于从空间不相干到相干进动的过渡。

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来源
《Physical review》 |2008年第2期|517-523|共7页
作者
K. V. Thadani; G. Finocchio; Z.-P. Li; O. Ozatay; J. C. Sankey; I. N. Krivorotov; Y.-T. Cui; R. A. Buhrman; D. C. Ralph;
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正文语种 eng
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magnetic properties of nanostructures; spin polarized transport; ferromagnetic; antiferromagnetic; and ferrimagnetic resonances; spin-wave resonance;

机译：纳米结构的磁性;自旋极化传输;铁磁;反铁磁和亚铁磁共振;自旋波共振;

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专利

1. Hysteretic spin-wave excitation in spin-torque oscillators as a function of the in-plane field angle: A micromagnetic description [J] . G. Finocchio, A. Prattella, G. Consolo, Journal of Applied Physics . 2011,第12期

机译：自旋转矩振荡器中的磁滞自旋波激励与平面内场角的关系：微磁学描述
2. Linewidth reduction in a spin-torque nano-oscillator caused by non-conservative current-induced coupling between magnetic layers [J] . D. Gusakova, M. Quinsat, J. F. Sierra, Applied Physics Letters . 2011,第5期

机译：磁层之间非保守的电流感应耦合导致自旋扭矩纳米振荡器的线宽减小
3. Critical current and linewidth reduction in spin-torque nano-oscillators by delayed self-injection [J] . Guru Khalsa, M. D. Stiles, J. Grollier Applied Physics Letters . 2015,第24期

机译：通过延迟自注入降低自旋扭矩纳米振荡器的临界电流和线宽
4. Tuning of Single Sideband Generation by In-Plane Field Angle in Spin Torque Nano-Oscillators [C] . Raghav Sharma, Naveen Sisodia, R K. Muduli IEEE International Magnetics Conference . 2018

机译：自旋扭矩纳米振荡器中通过面内场角对单边带产生的调谐
5. Astrophysics in strong magnetic fields: Accretion deceleration and synchrotron radiation in magnetic neutron stars. [D] . Nelson, Robert Warren. 1991

机译：强磁场中的天体物理学：磁中子星中的吸积减速和同步辐射。
6. Erratum: Magnetic droplet nucleation boundary in orthogonal spin-torque nano-oscillators [O] . Sunjae Chung, Anders Eklund, Ezio Iacocca, -1

机译：勘误：正交自旋扭矩纳米振荡器中的磁滴成核边界
7. Strong linewidth variation for spin-torque nano-oscillators as a function of in-plane magnetic field angle [O] . Thadani, K. V., Finocchio, G., Li, Z. -P., 2008

机译：自旋扭矩纳米振荡器的强线宽变化面内磁场角的作用

Strong linewidth variation for spin-torque nano-oscillators as a function of in-plane magnetic field angle

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