Magnetoelectric susceptibility and magnetic symmetry of magnetoelectrically annealed TbPO4

Doping-Tunable Ferrimagnetic Phase with Large Linear Magnetoelectric Effect in a Polar MagnetFe2Mo3O8Kurumaji1, Ishiwata2, Tokura3 2015Phys. Rev. X8391020View full textAdd to dashboardCite

“…2(d). [3] and comparable with that of several well-known magnetoelectrics, including magnetic Fe ions such as GaFeO 3 (21 ps=m) [27,28] and Fe 3 O 4 (50 ps=m) [29][30][31], although other systems such as TbPO 4 (300 ps=m) [32], with a highly anisotropic rare-earth magnetic moment, and the composite systems such as FeRh=BaTiO 3 (1.6 × 10 −5 s=m) [33] have been reported to show much larger ME coefficients. We also note that the observed linear ME effect shows significant y dependence; both α 1 and α 3 change their signs as y varies.…”

Hexagonal Manganites—(RMnO3): Class (I) Multiferroics with Strong Coupling of Magnetism and Ferroelectricity

“…The largest coefficient was found in the antiferromagnetic state of TbPO 4 at = 1.5 K, = 735 ps/m [11,15,16]. This coefficient is about 180 times larger than of Cr 2 O 3 , however, the field-induced electrical polarization of 58 C/m 2 measured at a field of 1 kOe [16] (or 585 C/m 2 if extrapolated to a field of 10 kOe) is relatively small.…”

Spin-Driven Ferroelectricity and Magneto-Electric Effects in Frustrated Magnetic Systems

“…This is partly because the reported linear ME effect was not large enough for applications. The largest value of a linear ME coefficient is 7 Â 10 À10 s/m ($2 Â 10 À1 and $2 Â 10 À2 in nonrationalized and rationalized Gaussian units, respectively) in TbPO 4 at 1.5 K. 14) Although there might be other rareearth compounds with higher ME coefficients, very low magnetic transition temperatures in rare-earth based magnetoeletrics prevent the device application. The linear ME coefficients in d electron systems are even smaller.…”