Magnetocrystalline anisotropy in magnetically ordered states of CuO (CROSBI ID 667155)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Dragičević, M: ; Lafargue-dit-Hauret, W ; Rocquefelte, X. ; Herak, M. ; Kimura, T.
engleski
Magnetocrystalline anisotropy in magnetically ordered states of CuO
Multiferroics are materials where magnetic and ferroelectric order coexist. This opens a possibility of control of magnetic order by both magnetic and electric field which makes these materials potentially technologically important. CuO is quasi-one-dimensional S=1/2 system which is also multiferroic. CuO has three magnetically ordered phases: below T_N1=213 K it is collinear antiferromagnet (AFM1 phase), between T_N1 < T < T_N2 (T_N2 = 229.3 K) it is incommensurable spiral antiferromagnet(AFM2 phase) and also multiferroic, and between T_N2 < T < T_N3 (T_N3 = 230 K) it is incommensurable collinear antiferromagnet (AFM3 phase). Theoretical calculations have shown that CuO could be multiferroic at room temperature under high pressures. Multiferroic state of CuO is still widely studied and not completely understood. Anisotropic interactions, i.e. Dzayloshinskii-Moriya, is expected to play an important role in multiferroic phase [5]. Measuring magnetic anisotropy is thus crucial for understanding of mechanism responsible for multiferroicity in CuO. Macroscopic anisotropy of CuO is studied with torque magnetometry in low magnetic fields in the temperature range 4.2 K – 300 K. All three magnetic phase transitions are observed in torque
multiferroics, magnetic anisotropy CuO
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Podaci o prilogu
132-132.
2018.
objavljeno
Podaci o matičnoj publikaciji
10th International School and Conference on Physics and Applications of Spin Phenomena in Solids
Linz: Johannes Kepler University Linz
Podaci o skupu
10th International School and Conference on Physics and Applications of Spin Phenomena in Solids
poster
05.08.2018-09.08.2018
Linz, Austrija