{'fraction_non_alphanumeric': 0.020123839009287926, 'fraction_numerical': 0.01238390092879257, 'mean_word_length': 5.221153846153846, '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}}
Time resolved measurements of the energy relaxation in the 2DEG of AlGaAs/GaAs

For the first time two experimental methods (DC and time-resolved measurements) were used to study the energy relaxation mechanism in a two-dimensional electron gas. The results are in good agreement with theoretical predictions and yield a constant energy relaxation time of about 500 ps throughout the whole measured electron temperature range (4.2-14 K). From the comparison with theory the authors conclude that the energy loss rate of electrons in AlGaAs/GaAs heterostructures is governed by acoustic phonon scattering via the deformation potential interaction.