{'fraction_non_alphanumeric': 0.02040816326530612, 'fraction_numerical': 0.022263450834879406, 'mean_word_length': 4.684210526315789, '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}}
Stable Position of B12 Cluster Near Si (001) Surface and Its STM Images

We conducted a first-principles examination to determine the most stable position of an icosahedral B 12 cluster near a Si (001) surface. We discovered that such a cluster is most stable when its center is located at the fourth layer position from the Si top surface where a Si dimer sits directly overhead. Scanning tunneling microscopy (STM) simulation revealed that Si dimers above the B 12 cluster are distinguishable from other dimers in empty-state STM images.