{'fraction_non_alphanumeric': 0.021505376344086023, 'fraction_numerical': 0.0, 'mean_word_length': 4.927272727272728, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Diffusion of a Light Hydrogen Isotope in the III-V Nitrides

Over the last few years investigation of muonium, a light pseudo-isotope of hydrogen formed by implantation of positive muons, has provided significant information on isolated hydrogen impurities in the III-V nitrides. We review the sites and motional properties obtained for each of the three charge states, Mu , Mu , and Mu . These data on Mu generally agree with theoretical results for hydrogen, with significant differences only for the negative charge-state. Modification of the experimental results on Mu for application to diffusion of hydrogen in the nitrides is briefly discussed.