The absorption in MgO: Fe2+ |
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Authors: | NB Manson JT Gourley ER Vance D Sengupta G Smith |
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Institution: | Department of Solid State Physics, Research School of Physical Sciences, Australian National University, Canberra, A.C.T. 2600, Australia |
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Abstract: | At helium temperatures two sharp lines at 9350 and 9510 cm?1 have been observed for the first tune on the low-energy side of the broad double-peaked absorption corresponding to the transition in Fe2+ at the octahedral site in MgO. The lower energy line has a half width of 4 cm?1; Zeeman measurements show that it is of magnetic dipole origin. The Zeeman spectra are consistent with those expected for a pure electronic transition from the (5T2g)T2g ground state to the 5Eg excited state. The second line, with a halfwidth of ~ 35 cm?1, a vibrational sideband. |
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