13077
First - principles calculations indicate that giant interfacial anisotropy , induced by the strong spin - orbit interaction of enhanced orbit momentum of Fe , overcomes the superparamagnetic limit , leading to exceptional room - temperature permanent ferromagnetism .
 Chemical: Fe
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Fe