Competing antiferromagnetic orders in the double perovskite Mn₂MnReO₆ (Mn₃ReO₆)

Abstract

The new double perovskite Mn2MnReO6 has been synthesised at high pressure. Mn(2+) and Re(6+) spins order antiferromagnetically through two successive transitions that are coupled by magnetoelastic effects, as order of the Mn spins at 109 K leads to lattice distortions that reduce frustration prompting Re order at 99 K.

Origin of negative magnetization phenomena in (Tm1−xMnx)MnDönni1, Pomjakushin2, Zhang3 et al. 2020Phys. Rev. B91100View full textAdd to dashboardCite

“…For example, Fe 3+ cations at the B site are ordered at T N,Fe = 620−740 K in RFeO 3 , while (some) magnetic R 3+ cations at the A site are ordered at T N,R = 2−8 K [3]. Cr 3+ cations at the B site are ordered at T N,Cr = 110−280 K in RCrO 3 , while (some) magnetic R 3+ cations at the A site are ordered [9] and Mn 2 FeSbO 6 [10] (which demonstrate incommensurate antiferromagnetic Mn 2+ spin order), Mn 2 MnReO 6 [11], and Mn 2 FeReO 6 (which shows high ferrimagnetic transition temperature and giant and switchable magnetoresistance) [12,13]. They all crystallize in simple perovskite structuresderivatives of the GdFeO 3 -type structure.…”

Mn2CoReO6: a robust multisublattice antiferromagnetic perovskite with small A-site cations

“…[11][12][13][14] In the so-far-rare cases in which all cations are transition metals, multiple magnetic sublattices can arise with unusual and intense interactions. [15][16][17][18][19][20] In this work, we present the fourth transition-metal-only DP (TMO-DP), Mn 2 CoReO 6 . Co and Re were selected as the B and B' site cations due to the interesting magnetic interactions exhibited in A 2 CoReO 6 DPs such as Pb 2 CoReO 6 .…”

Complex Ferrimagnetism and Magnetoresistance Switching in Ca-Based Double Double and Triple Double Perovskites

“…11,12 Mn2FeSbO6 and Mn2MnReO6 both have complex low temperature antiferromagnetic orders. [13][14][15] Figure 1 -The double/triple double perovskite structure of CaABReO6 materials in space group P42/n. Large Ca and small AT/AS cations are ordered in columns, with the latter alternating between tetrahedral AT and square planar AS sites as shown in the upper right view.…”