ZEEMAN SPLITTING OF NARROW LINES IN CRYSTALLINE MNF2, FEF2, AND COF2. EVIDENCE FOR SPIN-WAVE EXCITATIONS.
Abstract
The Zeeman splitting of narrow lines in the optical spectrum of crystals of MnF2, FeF2, and CoF2 was measured at 4.2 K and in applied magnetic fields to 170 kG. All of the transitions observed are intercombinations for which delta S = -1. These crystals all have the rutile structure. The behavior of narrow lines in the 5450 A region of the MnF2 spectrum is shown as the external magnetic field is applied parallel to the c axis (z direction) of the crystals. The lines arise from transitions from the ground (6)A sub 1g state to the lowest (4)T sub 1g excited state and are at slightly lower energy than the vibronic band for this transition. Similar results for the 3800 A region of FeF2 are shown. In each case two magnetic dipole transitions, separated by 17.2/cm for MnF2 and 35.9/cm for FeF2 appear, followed at higher energies by electric dipole transitions. The latter do not split in the external magnetic field, in the case of MnF2, and split less than half as much as the magnetic dipole lines in the case of FeF2.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1965
- Accession Number
- AD0624803
Entities
People
- Donald S. Mcclure
- J. W. Stout
- Philip G. Russell
Organizations
- University of Chicago