{'fraction_non_alphanumeric': 0.023373983739837397, 'fraction_numerical': 0.011178861788617886, 'mean_word_length': 5.19496855345912, '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': 1, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Transverse-field muon spin relaxation investigations of the magnetic penetration depth in the carbide superconductorsY2C2(Br,I)2andYC2

We present measurements of the temperature and magnetic ﬁeld ( B ext , 0.2 T) dependences of the transverse-ﬁeld muon spin relaxation rate taken on polycrystalline samples of the layered superconductors Y 2 C 2 X 2 , X 5 Br,I, and the binary carbide YC 2 . The aim of these investigations was to determine the magnetic penetration depth l ( T ) which is a fundamental parameter of the superconducting state. The magnetic-ﬁeld dependence of the muon-depolarization rate below T c is discussed. An analysis of the temperature dependence of the depolarization rates allows qualitative conclusions regarding the strength of the electron-phonon coupling in the compounds under investigation. The dependence of the transition temperature on the condensate density of the halide-carbide superconductors is compared to that of other exotic superconductors.