Coexisting ferro- and antiferromagnetism in Ni2MnAl Heusler alloys
JOURNAL OF APPLIED PHYSICS, cilt.92, sa.7, ss.3867-3871, 2002 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 92 Sayı: 7
- Basım Tarihi: 2002
- Doi Numarası: 10.1063/1.1504498
- Dergi Adı: JOURNAL OF APPLIED PHYSICS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.3867-3871
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Ankara Üniversitesi Adresli: Hayır
Özet
The structural and magnetic properties of stoichiometric Ni2MnAl are studied to clarify the conditions for ferromagnetic and antiferromagnetic ordering claimed to occur in this compound. X-ray and magnetization measurements show that although a single phase B2 structure can be stabilized at room temperature, a single L2(1) phase is not readily stabilized, but rather a mixed L2(1)+B2 state occurs. The mixed state incorporates ferromagnetic and antiferromagnetic parts for which close-lying Curie and a Neel temperatures can be identified from magnetization measurements. (C) 2002 American Institute of Physics.