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Optically detected magnetic-resonance observation of spin-dependent interdefect electron transfer in the GaP:(V,S) system

Beobachtung von Spin-abhängigem Elektronentransfer in GaP:(V,S) mittels optisch detektierter magnetischer Resonanz
: Omling, P.; Kveder, B.K.; Meyer, B.K.; Oettinger, K.; Kaufmann, U.; Kordina, O.


Physical Review. B 47 (1993), Nr.19, S.12527-12531
ISSN: 0163-1829
ISSN: 1098-0121
ISSN: 0556-2805
Fraunhofer IAF ()
GaP; ODMR; vanadium

A strong, optically detected magnetic-resonance (ODMR) sign at g=1.99 is observed on the internal 3T2 to 3A2 emission of V3+. The ODMR excitation spectrum is identical with the emission spectrum. From the analysis of the experimental data it is nevertheless concluded that the spin resonance does not arise from the V but is due to shallow S donors present in the sample. A model accounting for the spin-dependent electron-transfer mechanism is suggested. An unidentified photoluminescence emission centered at 1.35 eV with an isotropic g=2.06 ODMR line is also observed.