{'fraction_non_alphanumeric': 0.0327313769751693, 'fraction_numerical': 0.01805869074492099, 'mean_word_length': 6.096, '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}}
Unique high temperature polarization stability state in Bi0.5Na0.5TiO3–BaTiO3 system at the morphotropic phase boundary

The high‐temperature stability of piezoelectric property is an important merit for applications at elevated temperatures. However, understanding the depolarization mechanism is a fundamental issue that remained unclear for decades. In this study, the ex situ depolarization behavior between open‐circuited and short‐circuited annealed samples is measured for (1–x)Bi0.5Na0.5TiO3–xBaTiO3 (BNT–xBT) ceramics. A unique high temperature polarization stability state with respect to the prominent improvement depolarization temperature is observed for the morphotropic phase boundary (MPB) composition (x = 0.06) with open‐circuited annealed samples. It is suggested that this enhancement can be attributed to the alignment of the nanodomains induced by the bias fields.