H. Riesen, Zeeman scanning of persistent spectral holes in amorphous hosts. Application to the R-1 line of [Cr(NCS)(6)](3-) in glycerol, J PHYS CH A, 104(23), 2000, pp. 5469-5474
Persistent spectral holes in amorphous systems can remain sharp and may dis
play a linear shift upon the variation of the external magnetic field when
they are burned in high fields. Experiments were performed on the R line of
[Cr(NCS)(6)](3-) in glycerol at 4.2 K. When the spectral hole is burned in
a field of 3.2 T it displays a linear shift of 26.4 GHz/T upon the variati
on of the magnetic field strength from 2.8 to 3.6 T. The shift corresponds
to an average excited-state R-value of 2.17. The broadening of the hole imp
lies an upper limit of the anisotropy and/or strain of the excited g-value
of approximate to 15%. The linear shift can be used to read out the spectra
l hole by sweeping the magnetic field.