2009年12月4日 · Up until Equation (11) in the paper, he writes down the LLG equation in spherical coordinates with subject to relevant anisotropic forces and the spin current. He arrives at the following ODE system: [tex]

2014年8月28日 · The torque contribution due to the uniaxial anisotropy is given by the equation below \\frac{\\Gamma}{l_m K} = (2 \\sin\\theta \\cos\\theta)[\\sin\\phi e_x - \\cos\\phi e_y] (3) This contribution can be taken in the LLG equation to derive the LLG equation in …

2012年4月4日 · I have the material properties (complex refractive index and complex dielectric function) at the given wavelength. Yet, I do not have the complex permittivity or permeability. I know you can use LLG equation and derive the complex permeability, but I was wondering if there was an alternative way.

2012年6月19日 · I don't have an in-depth knowledge of the LLG equation but I did learn it for my numerical micro-magnetic research. I had to solve the LLG equation numerically. I think it's a simple equation provided that you start with Landau-Lifgarbagez equation first rather than Landau-Lifgarbagez -Gilbert and assume zero damping parameter, and derive the ...

2012年5月11日 · In LLG equation, the exchange constant is in the unit of "J/m", and the typical value is 10^-11 J/m, for some magnetic metal as far as I know. But I can't find a handbook or any online material summarizing this parameter for different materials.

2019年9月25日 · Furthermore I am confused, why this [itex] \tau_{SOT} [/itex] isn't perpendicular to the Torque of the field. i mean, form the LLG-equation the damping term is always a crossproduct from the fieldlike-part-direction and and magnetization vector, so it must be perpendicular to the field-like-term.

2012年1月31日 · [itex] \vec{B} = \frac{\mu_{o} I }{2∏ R} \hat{\phi}[/itex] , is the equation of Magnetic Field in spherical coordinates. where [itex] \mu_{o} [/itex] is a constant and R is the perpendicular distance from the wire to the observation points. Find the expression for [itex]\vec{B}[/itex] in cartesian coordinates. Homework Equations

2025年2月21日 · The equation is: sin h bt/ bt. I also have another question, if t does not equal 1 and an equation requires that it equals one then can I use 0.66 instead of one or is the equation set for when t=1 and cannot be used with t=0.66?

2012年10月7日 · how do you know when to use dB= 20log(ratio of input/output quantities) or dB=10log(ratio of output and inout). voltage seems to be 20, power seems to be 10... but how about when doing Fourier transforms and you want to …

2018年12月3日 · The Bernoulli equation is a powerful and deceptively simple relationship. The simplicity comes with a cost, however, in terms of a relatively strict set of limitations. With a bit of care in its use, as outlined above, it can be applied to a broad range of fluid dynamics problems, either directly or with slight modification, ranging from pipe ...