{'fraction_non_alphanumeric': 0.03636363636363636, 'fraction_numerical': 0.02159090909090909, 'mean_word_length': 5.034246575342466, '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}}
Temperature Dependences of Spin-Diffusion Lengths of Cu and Ru layers

Ferromagnetic resonance (FMR) was measured in Cu/Ni80Fe20/normal-metal: NM (d)/Pt, Cu/Ni80Fe20/NM (d) films with various d values to clarify the temperature dependence of spin-diffusion length induced by the precession of magnetization on Gilbert damping. The films were fabricated by rf magnetron sputtering. The out-of-plane angular dependences of FMR resonance field and linewidth were analyzed using a Landau–Lifshitz–Gilbert equation, and the Gilbert damping parameter G of NiFe was obtained. The obtained spin-diffusion lengths λSD were 350 and 950 nm at 300 and 4.5 K, respectively. The spin-flip probability of the Cu layer was obtained using the temperature dependence of FMR linewidth. These results were then compared with the calculated data of the temperature dependence of spin-diffusion length.