{'fraction_non_alphanumeric': 0.021739130434782608, 'fraction_numerical': 0.007905138339920948, 'mean_word_length': 4.571428571428571, '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}}
Spin-Wave Theory of Magnetic Ordering in UNi4B.

We study properties of UNi 4 B using the Heisenberg model. Considering the spin operators as classical vectors, we show that the classical ground state of this model is the vortexlike U spin arrangement in the basal plain. By means of the spin-wave method we calculate the temperature dependence of the specific heat at low temperatures, and estimate the coupling constants. From the obtained coupling constants we get the transition temperature T N =8.7 K.