Basal plane ferromagnetism in the rhombohedral manganite La0.85Ag0.15MnO3+?
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Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The structural and magnetic properties of silver-doped lanthanum manganite, La0.85Ag0.15MnO3+delta, delta = 0.10(2), have been studied using magnetometry and high-resolution neutron powder diffraction. The structural space group is found to be predominantly R (3) over barc, with a minor (5%) fraction of Pnma phase. This phase fraction does not change in the measured temperature range of 4 K to 300 K. Our high-resolution diffraction data allow a detailed analysis of the spin orientation. Using representational analysis, we find the ferromagnetic state below T-c = 246 K has spins oriented perpendicular to the rhombohedral c-axis and is purely ferromagnetic i.e. no canting between sublattices is observed. Implications for the magnetocaloric effect are discussed.
Açıklama
Anahtar Kelimeler
Magnetocaloric effect, Neutron powder diffraction, Manganite
Kaynak
Journal of Magnetism and Magnetic Materials
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
498
