Idioma:

Observation of room-temperature ferromagnetism in (Al,Mn)N thin films

Ham, Moon-Ho ; Yoon, Sukho ; Park, Yongjo ; Myoung, Jae-Min

Journal of crystal growth, 2004-11, Vol.271 (3), p.420-424 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

Texto completo disponível

Citações Citado por

Enviar para

Título:
Observation of room-temperature ferromagnetism in (Al,Mn)N thin films
Autor: Ham, Moon-Ho ; Yoon, Sukho ; Park, Yongjo ; Myoung, Jae-Min
Assuntos: A1. Ferromagnetism ; A3. PEMBE ; B1. (Al,Mn)N ; B2. Diluted magnetic semiconductor ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Magnetic properties and materials ; Materials science ; Methods of deposition of films and coatings; film growth and epitaxy ; Molecular, atomic, ion, and chemical beam epitaxy ; Nonmetallic ferromagnetic materials ; Physics ; Studies of specific magnetic materials
É parte de: Journal of crystal growth, 2004-11, Vol.271 (3), p.420-424
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: We present the structural, electrical and magnetic properties in the (Al,Mn)N thin films with various Mn concentrations grown by plasma-enhanced molecular beam epitaxy. The X-ray diffraction patterns reveal that the (Al,Mn)N films have the wurtzite structure without secondary phases. The (Al 1− x Mn x )N films with x = 1.7 % and 2.6% were obviously found to exhibit the ferromagnetic ordering with Curie temperature exceeding room temperature while the film with x = 3.0 % was observed to show the ferromagnetic ordering at 5 K, indicating that a critical Mn concentration exists. Since all the films exhibit insulating characteristics, the origin of ferromagnetism in (Al,Mn)N might be attributed to indirect exchange interaction caused by virtual electron excitations from Mn acceptor level to the valence band within the samples.
Editor: Amsterdam: Elsevier B.V
Idioma: Inglês

Links

View record in Pascal Francis

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Observation of room-temperature ferromagnetism in (Al,Mn)N thin films

Ham, Moon-Ho ; Yoon, Sukho ; Park, Yongjo ; Myoung, Jae-Min

Amsterdam: Elsevier B.V

Buscando em bases de dados remotas. Favor aguardar.