Naslov
Linear Magnetoelectric Effect in Topological Antiferromagnet Cu3TeO6

Autori
Kisiček, Virna ; Dominko, Damir ; Čulo, Matija ; Rapljenović, Željko ; Kuveždić, Marko ; Dragičević, Martina ; Berger, Helmuth ; Herak, Mirta ; Ivek, Tomislav

Vrsta, podvrsta
Radovi u časopisima, znanstveni

Izvornik
ArXiv.org (2022)

Status rada
Poslan

Ključne riječi
Magnetoelectrics, cuprates, antiferromagnets with domains, topological antiferromagnets, ferrotoroidal order

Sažetak
We report on linear magnetoelectric effect observed by the static electric polarization measurements in an external magnetic field up to 12 T on topological multidomain antiferromagnet Cu3TeO6. The polarization is non-zero only below the Néel temperature and for E⊥H . The magnetization data show spin reorientation taking place already in H< 1 T. This is fully captured by the anisotropic Heisenberg spin Hamiltonian, revealing the change of the magnetic point group from 3¯ ' in the ground state to m in the applied magnetic field, in agreement with the observed magnetoelectric effect. Both point groups allow the ferrotoroidic order which could be a source of magnetoelectric effect in this system. Our results establish Cu3TeO6 as a playground for the study of magnetoelectric topological antiferromagnets and a host of several phenomena which are of interest for future spintronic devices.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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