Transverse Field Effects of Al Concentration on Magnetic Properties of B2-FeAl Nanoparticle
ACTA PHYSICA POLONICA A, cilt.139, sa.1, ss.20-24, 2021 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 139 Sayı: 1
- Basım Tarihi: 2021
- Doi Numarası: 10.12693/aphyspola.139.20
- Dergi Adı: ACTA PHYSICA POLONICA A
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Compendex, INSPEC
- Sayfa Sayıları: ss.20-24
- Erciyes Üniversitesi Adresli: Evet
Özet
Transverse field dependence of magnetic properties of the B2-FeAl nanoparticle (B2-FeAl-np) is investigated by using the effective field theory (or the Kaneyoshi theory) at H = 0 and H = 0.25. It is found that the magnetization and the Curie temperature of B2-FeAl-np decrease as the transverse field increases. A similar decrease in the magnetization and the Curie temperature of B2-FeAl is experimentally observed by Plazaola et al. with the increase (27.5%, 30%, 32.5% and 35%) of the Al content in B2-FeAl. These theoretical and experimental results revealed that the increase of the Al content in B2-FeAl-np causes an increase in the transverse field of B2-FeAl-np. Thus, the magnetization and the Curie temperature of B2-FeAl-np decrease. However, the ferromagnetic and antiferromagnetic spin splitting of paramagnetic Fe and Al atoms is obtained by a non-zero external magnetic field (H = 0.25) at T > T-C.