Cobalt oxyhydroxide (CoOOH) is a promising catalytic material for oxygen evolution reaction
(OER). In the traditional CoOOH structure, Co3+ exhibits a low-spin state configuration (t 2 g …

The magnetoelectric effect is an appealing property displayed by most compounds in the
corundum-derived 429 series (M 4 A 2 O 9, A= Nb or Ta). The exception is Ni 4 Nb 2 O 9 …

In order to explore the consequences of spin–orbit coupling on spin–phonon interactions in
a set of chemically similar mixed metal oxides, we measured the infrared vibrational …

Terahertz (THz) magnonics represent the notion of mathematical algebraic operations of
magnons such as addition and subtraction in THz regime which is an emergent …

Honeycomb-lattice antiferromagnets have attracted wide attention for the exploration of
exotic heat transport and their interplay with magnetic excitations. In this work, we have …

Co 4 Ta 2 O 9 exhibits a three-dimensional magnetic lattice based on the buckled
honeycomb motif. It shows unusual magnetoelectric effects, including the sign change and …

Using Green's function theory and a microscopic model, the multiferroic properties of Co 4
Nb 2 O 9 are investigated theoretically. There are some discrepancies in the discussion of …

The spin dynamics of Mn 4 Nb 2 O 9 were studied using inelastic neutron scattering. A
dynamic model is proposed to explain the observed spin-wave excitation spectrum from Mn …

Abstract A 4 B 2 O 9 (A= Co, Fe, Mn, Ni, B= Nb, Ta) compounds with a corundum-type
structure can host multiferroic phenomena and present magnetoelectric coupling to achieve …

The bimetallic oxides of general M4M'2O9 formula, where M= Fe, Co, Mn and M'= Nb or Ta,
form a family of linear magnetoelectric materials, for which properties depend on the nature …