Raman Spectroscopy – Something for the Future?
Raman spectroscopy is not a technique we are used to seeing in spintronics, but as organic spintronics gains traction is spin-flip raman spectroscopy something we should start getting used to?
Organic Spintronics Spectroscopy
Organic electronics and semiconductors have had considerable success recently, in particular with OLED displays available in high-end electronics. Just as spintronics introduces the spin degree of freedom to electronic devices, organic spintronics seeks to achieve the same in organic electronics.
Spin-flip Raman spectroscopy is one of the analysis techniques that the spintronics community may need to become familiar with if organic spintronics continues to grow.
Spin-flip Raman Spectroscopy
Conventional Raman spectroscopy involves scattering by optical and acoustic phonons. In this case the initial and final electronic states are the same and the number of phonons changes. In spin-flip raman spectroscopy the initial and final electronic states are in different spin-states
This New Scientist article from 1977 describes how the new (at the time) technique of spin-flip scattering was introduced by none other than future knight-of-the-realm and youtube-star Professor Sir Martyn ‘this man looks like science‘ Poliakov. The article focuses on the story of assembling the equipment and research team, rather than the physics, and for new-comers to spin-flip Raman spectroscopy (i.e. most of us), there is a handy 3-panel introduction to the concept.