Pregled bibliografske jedinice broj: 1234429
LINEAR MAGNETOELECTRIC EFFECT IN MULTIDOMAIN ANTIFERROMAGNET Cu3TeO6
LINEAR MAGNETOELECTRIC EFFECT IN MULTIDOMAIN ANTIFERROMAGNET Cu3TeO6 // International School and Workshop on Electronic Crystals ECRYS-2022 Book of Abstracts
Cargese, Corse, France, 2022. str. 1-1 (poster, recenziran, prošireni sažetak, znanstveni)
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Naslov
LINEAR MAGNETOELECTRIC EFFECT IN MULTIDOMAIN
ANTIFERROMAGNET Cu3TeO6
Autori
Kisiček, Virna ; Herak, Mirta ; Čulo, Matija ; Dominko, Damir, Dragičević, Martina ; Kuveždić, Marko ; Ivek, Tomislav
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, prošireni sažetak, znanstveni
Izvornik
International School and Workshop on Electronic Crystals ECRYS-2022 Book of Abstracts
/ - , 2022, 1-1
Skup
International School and Workshop on Electronic Crystals ECRYS-2022
Mjesto i datum
Cargese, Corse, France, 8-20.08.2022
Vrsta sudjelovanja
Poster
Vrsta recenzije
Recenziran
Ključne riječi
Magnetoelectrics, cuprates, antiferromagnets, domains, ferrotoroidal order
Sažetak
The family of antiferromagnets (AFM) with multidomain structure is of particular importance in the fundamental research of multiferroics because they represent an opportunity to examine the dynamics of domains and domain walls, their motion, creation, or destruction, as well to examine the role of magnetoelectric (ME) effect. Here the ME effect is investigated in copper tellurium oxide, Cu3TeO6, with cubic unit cell and 3D AFM order in which copper ions form hexagons with shared vertices. Below TN = 61 K multiple domains develop with easy axes pointing along diagonals of the unit cell, resulting in 8 (4x2) AFM domains.We present ME properties of Cu3TeO6by the results of static electric polarization measurements in an external magnetic field up to 16 T for a few different orientations of electric polarization P and magnetic field H. Below TN P-E hysteresis opens (Fig. 2) by the magnetic field applied in perpendicular direction to the electric field, with saturation polarization increasing linearly with the magnetic field and behaving BCS- like with temperature. Since the symmetry analysis shows that the observed ME effect is not in agreement with the symmetry-determined ME tensor we consider two possible explanations: i) the actual symmetry of the ordered state is different than expected from neutron diffraction experiment, ii) spin reorientation within domains takes place. We analyze both and investigate possibility of ferrotoroidal order. Analysis of magnetic symmetry by studying magnetic anisotropy will be shown.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
