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SUMMARY:Flexomagnetic response of multiferroics
DTSTART;VALUE=DATE-TIME:20190523T134500Z
DTEND;VALUE=DATE-TIME:20190523T141500Z
DTSTAMP;VALUE=DATE-TIME:20240813T062556Z
UID:indico-contribution-625@indico.knu.ua
DESCRIPTION:Speakers: Anna Morozovska (Institute of Physics\, National Aca
demy of Sciences of Ukraine)\nUsing direct matrix method we established th
e structure\, including the number of nonzero and independent elements\, o
f the poorly studied flexomagnetic coupling tensor for all 90 magnetic cla
sses. We used the point symmetry of the unit cell\, its magnetic symmetry\
, previously known permutation symmetry\, as well as we establish previous
ly unexplored permutation symmetry of the flexomagnetic tensor. For severa
l symmetries\, which correspond to the most important for applications mul
tiferroics with nonzero flexomagnetic effect\, such as $\\mathrm{BiRFeO_3}
$ ($\\mathrm{R=La\, Pr\, Eu}$)\, $\\mathrm{Sr_{1-x}Ba_xMnO_3}$\, $\\mathrm
{LiMPO_4}$ ($\\mathrm{M = Fe\, Co\, Ni}$)\, $\\mathrm{TbMn_2O_5}$\, $\\mat
hrm{YMnO_3}$\, $\\mathrm{InMnO_3}$ and $\\mathrm{RMn_{1−x}Ga_xO_3}$ ($\\
mathrm{R=Ho\, Y}$)\, we visualize the effective flexomagnetic response of
the bended magnetoelectric plate\, analyze its anisotropy and angular depe
ndences. We discuss how the established symmetry can simplify the problem
of the flexomagnetic constants determination from experiments\, opening th
e way for its novel applications.\n\nhttps://indico.knu.ua/event/4/contrib
utions/625/
LOCATION:
URL:https://indico.knu.ua/event/4/contributions/625/
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