6533b86cfe1ef96bd12c7fba
RESEARCH PRODUCT
Mössbauer Spectroscopic Evidence of Angle-Dependent Intersystem Crossing in LiNbO3:Fe3+
F. TuczekKm HasselbachB. MolnárD. L. NagyR. DoerflerO. LeupoldHartmut SpieringPhilipp GütlichW. GruberG. Rittersubject
Condensed Matter::Quantum Gaseschemistry.chemical_classificationPhysicsZeeman effectMössbauer effectGeneral Physics and AstronomyMagnetic fieldsymbols.namesakeNuclear magnetic resonanceIntersystem crossingchemistryExcited stateMössbauer spectroscopysymbolsEmission spectrumAtomic physicsInorganic compounddescription
M\"ossbauer emission spectra of LiNb${\mathrm{O}}_{3}$:$^{57}\mathrm{Co}$ single crystals in magnetic fields up to 5 T at 4.2 K show initial populations of the $^{6}A_{1\mathrm{g}}$ Zeeman substates of ${\mathrm{Fe}}^{3+}$ which depend strongly on the angle between the crystallographic $c$ axis and the magnetic field. This is interpreted in terms of a crystal-field effect on excited states which influences the initial populations of the Zeeman sublevels of the $^{6}A_{1\mathrm{g}}$ ground term after the electron-capture decay of $^{57}\mathrm{Co}$. An intersystem crossing process due to orbit-lattice interaction can fairly well explain the angular dependence.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1986-12-01 | Physical Review Letters |