{'fraction_non_alphanumeric': 0.024922118380062305, 'fraction_numerical': 0.017133956386292833, 'mean_word_length': 4.543103448275862, '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}}
Crystal field parameters of praseodymium in oxides

The crystal field parameters of the Pr4+ ion in PrO2 and PrBaO3 are calculated using the density of states projected on the 4f states of the Pr4+ ion. The orbital‐dependent potential is used and the procedure involves an adjustable parameter Δf that determines the relative position of the center of the 4f levels. Δf can be estimated using the LDA + U method. For reasonable values of Δf the calculated crystal field parameters give a splitting close to the one observed. It is shown that the hybridization of the 4f states is important. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)