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Spin-related emission properties have important applications in the future information technology; however, they involve microscopic ferromagnetic coupling, antiferromagnetic or ferrimagnetic coupling between transition metal ions and excitons, or d state coupling with phonons is not well understood in these diluted magnetic semiconductors (DMS). Fe 3+(More)
In order to effectively evaluate the technical level, management ability, service level and operating environment of suppliers, this paper introduces a closeness degree to evaluate the supplier based on triangular fuzzy number. Initialized a supplier evaluation index system and the supplier evaluation language set, this paper establishes a triangular fuzzy(More)
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