TL;DRAbstract
The electron paramagnetic resonance spectra of dilute trivalent chromium at sites with axial symmetry in single crystals of magnesium oxide has been studied in detail.In particular, the angular dependences of resonance line intensities and field positions for Cr53 have been investigated.Trivalent chromium substitutes for the divalent magnesium ion in Mg0, and a significant fraction of the chromium ions are in association with a next-nearest-neighbor cation vacancy.The presence of the vacancy causes a splitting of the ground state spin quartet into two doublets, and the resonance spectrum can be analyzed in terms of the usual axial field spin-Hamiltonian.The chromium with which one of the crystals was doped was enriched with Cr53 beforehand.A dominant feature in the resonance spectra is the presence of so-called forbidden hyperfine lines.These result from transitions for which the selection rules Ms = 1, mI = 0 are violated, and are characterized by mI = 1, 2, and 3.Such lines have not
Chat with Paper
AI Agents for this Paper
The electron paramagnetic resonance spectra of dilute trivalent chromium at sites with axial symmetry in single crystals of magnesium oxide has been studied in detail.In particular, the angular dependences of resonance line intensities and field positions for Cr53 have been investigated.Trivalent chromium substitutes for the divalent magnesium ion in Mg0, and a significant fraction of the chromium ions are in association with a next-nearest-neighbor cation vacancy.The presence of the vacancy causes a splitting of the ground state spin quartet into two doublets, and the resonance spectrum can be analyzed in terms of the usual axial field spin-Hamiltonian.The chromium with which one of the crystals was doped was enriched with Cr53 beforehand.A dominant feature in the resonance spectra is the presence of so-called forbidden hyperfine lines.These result from transitions for which the selection rules Ms = 1, mI = 0 are violated, and are characterized by mI = 1, 2, and 3.Such lines have not
Keywords
Chat
Click to start Chat