INVESTIGADORES
DAMONTE Laura Cristina
artículos
Título:
"Time differential perturbed angular correlation study of pure and Sn-doped In2O3 semiconductors".
Autor/es:
A.G.BIBILONI; C.P.MASSOLO; DESIMONI J.; L. A.MENDOZA-ZÉLIS; F.H.SANCHEZ; A.F.PASQUEVICH; L. C. DAMONTE; A.R.LOPEZ GARCÍA
Revista:
PHYSICAL REVIEW B - SOLID STATE
Editorial:
APS
Referencias:
Año: 1985 vol. 32 p. 2393 - 2400
ISSN:
0556-2805
Resumen:
We present a series of measurements of the static and time-dependent interactions in the angular correlation of 111In (electron capture to 111Cd) in pure and Sn-doped In2O3. Results on the static electric field gradient are consistent with mainly ionic bonds and confirm the s character of the conduction band. The temperature and free-electron-density dependence of the fluctuating interaction is analyzed, thus allowing a tentative description of electron-capture aftereffects in semiconductors and insulators compounds. The hyperfine parameter characteristic of the time-dependent interaction provides a measurement of the hole lifetime in an impurity level. The position of the Cd impurity level deduced from our results is 0.164 eV above the valence band.
