Ryan Freeman

6 Questions 8 Answers 0 Followers

Questions related from Ryan Freeman

What does the linewidth of an interference resonance indicate?

Cavity modes are a consequence of constructive interference of EM waves in a particular region. It is common knowledge that the (frequency) linewidth of a cavity resonance is broadened by both...

12 December 2019 8,324 5 View

How to think about rotation of spins?

I am aware that due to the properties of spinors, to return a spinor to its initial state by rotation, the spinor must be rotated by 4*pi radians, i.e. rotation by 720 degrees. While I was taught...

08 August 2019 9,726 5 View

Will a 30nm thick Ag film oxidize in air in 5-10mins?

I'm preparing Ag plasmonic structures and don't know how fast the oxidation process occurs. Will my silver film oxidize more than 1-2 nm if I take the film out into air for 5-10 mins to prepare...

07 July 2018 7,474 6 View

What is spin mixing conductance? What does it mean if a material has a large imaginary part of the spin mixing conductance?

I originally thought that the real part of the spin mixing conductance represented how much spin current passes through a ferromanget/normal metal interface and that the imaginary part represents...

02 February 2018 6,216 2 View

How do ohmic losses scale with frequency?

I feel like I've seen several different papers say that ohmic losses in metals become very large at: low frequency, high frequency, and at plasmonic resonances. Are all of these true, or am I...

09 September 2017 3,700 3 View

Why is breaking symmetry a pre-requisite to create effective magnetic fields in 2D, strong spin-orbit coupled systems?

I've read papers about the Rashba effect, Dresselhaus effect, and Dzyalonshinskii-Moriya Interaction but don't understand fundamentally why breaking spatial symmetry is a pre-requisite to see...

05 May 2016 8,258 4 View