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Title: Confirmation of freely rotating H{sub 2} in ZnO

A Raman scattering study of H{sub 2} in ZnO which addresses the formation process, the thermal stability, the interaction with the phonon spectrum, the position in the host lattice, as well as the ortho-para conversion rates is presented. In particular, it is shown that the molecule is practically a free rotator stable up to 700 ┬░C. Furthermore, an ortho-para conversion rate at 79 K was found to be 7.5 h, whereas the back conversion at room temperature occurs within less than 0.5 h. The interstitial site is suggested as the most likely position for the molecule in the ZnO lattice.
Authors:
; ;  [1]
  1. Technische Universit├Ąt Dresden, 01062 Dresden (Germany)
Publication Date:
OSTI Identifier:
22263712
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1583; Journal Issue: 1; Conference: ICDS-2013: 27. international conference on defects in semiconductors, Bologna (Italy), 21-26 Jul 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; HYDROGEN; INTERACTIONS; MOLECULES; PHONONS; RAMAN EFFECT; SPECTRA; ZINC OXIDES