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In accordance with recent theoretical findings , much faster surface exchange ( ~ 4 times ) and diffusion ( ~ 10 times ) were observed for the tensile strained films compared to the compressively strained films in the entire temperature range .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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