Probing the effect of magnetic field on charge order in the quasi-two-dimensional Mott insulator κ − (ET) 2 Hg(SCN) 2 Clстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 25 мая 2022 г.
Аннотация:Molecular-based quasi-two-dimensional charge-ordered Mott insulators can possess both spin S = 1/2 andan electric dipole degree of freedom residing on each (BEDT-TTF)2 lattice site. There exists a theoreticalproposal for a magnetoelectric effect in such a material, which can manifest itself as a sensitivity of chargedistribution on (BEDT-TTF)2 dimers to the magnetic field. In this work, we used Raman scattering spectroscopyin the magnetic field up to 31 T applied perpendicular to the two-dimensional triangular lattice planes to probea magnetoelectric effect in κ-(ET)2Hg(SCN)2Cl. This is a model compound, which shows charge order andantiferromagnetic correlations at temperatures below 30 K. We discuss possible reasons for the absence of anobservable magnetoelectric effect in the probed temperature and magnetic field ranges.