14675
In homogeneous magnetite nanocrystals and in gold / magnetite core shell nanocrystals the cation exchange increases the coercivity field , the remanence magnetization , as well as the superparamagnetic blocking temperature .
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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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