{'fraction_non_alphanumeric': 0.03890489913544669, 'fraction_numerical': 0.005763688760806916, 'mean_word_length': 4.743801652892562, '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}}
ESR Absorption in a High-Tc Bi(Pb)-Sr-Ca-Cu-O Superconductor

ESR absorption at 22.9 GHz of the high-Tc phase of a Bi(Pb)-Sr-Ca-Cu-O ceramic superconductor has been studied under two different spectrometer modes: a conventional field-modulation mode and a direct reflection-amplitude mode. Owing to the effect of hysteresis in the microwave response, the field modulation did not provide the proper field derivative of ESR absorption. By employing the direct mode, we were able to obtain more reliable data for the temperature dependence of the g value, linewidth and integral intensity. The spin susceptibility followed the Curie-Weiss behavior with the negative Weiss temperature around -4 K.