Loading…

General magnetic transition dipole moments for electron paramagnetic resonance

We present general expressions for the magnetic transition rates in electron paramagnetic resonance (EPR) experiments of anisotropic spin systems in the solid state. The expressions apply to general spin centers and arbitrary excitation geometry (Voigt, Faraday, and intermediate). They work for line...

Full description

Saved in:
Bibliographic Details
Published in:Physical review letters 2015-01, Vol.114 (1), p.010801-010801, Article 010801
Main Authors: Nehrkorn, Joscha, Schnegg, Alexander, Holldack, Karsten, Stoll, Stefan
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present general expressions for the magnetic transition rates in electron paramagnetic resonance (EPR) experiments of anisotropic spin systems in the solid state. The expressions apply to general spin centers and arbitrary excitation geometry (Voigt, Faraday, and intermediate). They work for linear and circular polarized as well as unpolarized excitation, and for crystals and powders. The expressions are based on the concept of the (complex) magnetic transition dipole moment vector. Using the new theory, we determine the parities of ground and excited spin states of high-spin (S=5/2) Fe(III) in hemin from the polarization dependence of experimental EPR line intensities.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.114.010801