{'fraction_non_alphanumeric': 0.04201680672268908, 'fraction_numerical': 0.01680672268907563, 'mean_word_length': 5.196531791907514, '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}}
Gold Substitution Effect on Structure and Superconductivity Properties in Filled Skutterudite La(Pt1-xAux)4Ge12

A series of single-phased La(Pt 1-x Au x ) 4 Ge 12 compounds were prepared by an arc-melting method. The crystal structure and basic superconductivity parameters have been systematically investigated by X-ray diffraction and by examining the temperature and field dependences of electrical resistivity, magnetization and heat capacity. The lattice parameter a increases and the superconducting transition temperature T c decreases gradually with increasing Au content x. The low critical field H c1 (T) and the upper critical field H c2 (T) were estimated from the isothermal magnetization (M-H-T) and electrical transport (p-H-T) measurements, respectively. The evaluated H c1 (0) and H c2 (0) indicate a decrease tendency with increasing x, and enable us to deduce the coherence length ξ(0), penetration depth λ(0), Ginzburg-Landau parameter κ(0) and thermodynamic critical field H c (0). The present results are compared with those of the related systems.