Electron spin resonance and the spatial extension of the relaxed excited state ofF- andF A -centres

1979 ◽  
Vol 33 (4) ◽  
pp. 357-364 ◽  
Author(s):  
H. J. Reyher ◽  
K. Hahn ◽  
Th. Vetter ◽  
A. Winnacker
Keyword(s):  
Electron Spin Resonance ◽  
Excited State ◽  
Electron Spin ◽  
Spatial Extension ◽  
Spin Resonance

Electron resonance studies of transition metal oxyions - II. Theory of electron resonance in manganate

1960 ◽  
Vol 254 (1276) ◽  
pp. 111-118 ◽  
Keyword(s):  
Electron Spin Resonance ◽  
Excited State ◽  
Electron Spin ◽  
Unpaired Electron ◽  
Resonance Spectrum ◽  
Manganese Atom ◽  
Symmetry Type ◽  
Electron Resonance ◽  
Spin Resonance ◽  
First Excited State

It is shown that the detailed electron spin resonance spectrum of the manganate ion, (MnO 4 ) 2- , can be explained by assuming that the unpaired electron is in a doubly degenerate molecular orbital of symmetry type E and that the first excited state available to it is triply degenerate of symmetry type T 2 . The results indicate that the E orbital is largely concentrated on the manganese atom while the T 2 orbital is spread over the whole molecule. As a result of this analysis the quadrupole moment of 55 Mn is estimated to be 0·2 x 10 -24 cm 2 .

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