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--- documentation:standard_operators:magnetic_dipole:start [2016/10/06 08:15] – created Maurits W. Haverkort
+++ documentation:standard_operators:magnetic_dipole:start [2017/02/23 17:29] (current) – Maurits W. Haverkort
@@ Line 1: / Line 1: @@
+{{indexmenu_n>8}}
+====== Magnetic dipole operators (T) ======
+###
+The magnetic dipole operator is defined as:
+\begin{equation}
+\vec{T} = \vec{S} - 3 \hat{r}\left(\hat{r}\cdot\vec{S}\right).
+\end{equation}
+They apear in the magnetic sum-rules for core level spectroscopy, where excitations from a core state that is split by spin-orbit coupling to a valence shell lead two two sets of separate peaks due to the core leve spin-orbit coupling. The weighted integrated difference between these two edges is related to $\vec{S}$ and $\vec{T}$ \cite{Carra:1993uz}.
+###
+===== Table of contents =====
+{{indexmenu>.#1|msort nsort}}