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New Ferromagnetic Nitrides, CaN and SrN, and their “Recipe”
Published online by Cambridge University Press: 26 February 2011
Abstract
We have designed new materials, CaN and SrN in a rock-salt structure (RS). They are ferromagnetic nitrides. Their ferromagnetic states are quite stable. Our calculations for the formation energy and first-principles MD simulations suggested that RS-CaN is at least metastable and stable in normal condition. Based on our results we have proposed the synthesis process of RS-CaN. Our proposed process is (1) heat up α-Ca3N2 until it is transformed into β-Ca3N2, (2) compress it above 50 GPa until 2Ca3N2 →2CaN+Ca reaction occurs, (3) cool down them to room temperature and (4) decompress them into an ambient pressure. We consider that this high pressure and high temperature synthesis is one of the hopeful method to synthesize new materials.
- Type
- Research Article
- Information
- MRS Online Proceedings Library (OPL) , Volume 987: Symposium PP – Materials Research at High Pressure , 2006 , 0987-PP01-03
- Copyright
- Copyright © Materials Research Society 2007