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During in situ annealing at temperatures which would lead to significant intermixing by volume diffusion in bulk material , according to literature data , a core - shell morphology was preserved ; that is , intermixing in the nanowire was pronouncedly decelerated compared to bulk diffusion .
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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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