Electric field gradients of111Cd in the hexagonal (A-phase) La2O3 and Nd2O3 sesquioxides |
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| Authors: | D. Lupascu J. Albohn J. Shitu A. Bartos K. Królas M. Uhrmacher K. P. Lieb |
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| Affiliation: | (1) II. Physikalisches Institut der Universität Göttingen, Bunsenstrasse 7–9, D-37073 Göttingen, Germany;(2) Present address: Universidad Nacional de La Plata, Argentina;(3) Present address: Jagellonian University, Cracow, Poland |
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| Abstract: | Perturbed angular correlation measurements of111In in hexagonal La2O3 and Nd2O3 yield well defined symmetric electric field gradients with coupling constantvQ=280 MHz (extrapolated) in La2O3 andvQ=269 MHz for Nd2O3 at room temperature. The coupling constant in La2O3 linearly decreases with temperature. The spectra of La2O3, strongly damped at RT, rise to full amplitude at 870 K indicating dynamical interactions. |
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