Multiferroics, defined for those multifunctional materials in which two or more kinds of
fundamental ferroicities coexist, have become one of the hottest topics of condensed matter …

In this contribution to the special issue on multiferroics we focus on multiferroicity driven by
different forms of charge ordering. We will present the generic mechanisms by which charge …

With the perovskite multiferroic R Mn O 3 (R= Gd, Tb, Dy) as guidance, we argue that the
Dzyaloshinskii-Moriya interaction (DMI) provides the microscopic mechanism for the …

It was recently observed that the ferroelectrics showing the strongest sensitivity to an applied
magnetic field are spiral magnets. We present a phenomenological theory of …

We show that the symmetry of the spin zigzag chain E phase of the orthorhombic perovskite
manganites and nickelates allows for the existence of a finite ferroelectric polarization. The …

A free web page under the name MAGNDATA, which provides detailed quantitative
information on more than 400 published magnetic structures, has been developed and is …

We review and critique the recent developments on multifunctional oxide materials, which
are gaining a good deal of interest. Recongnizing that this is a vast area, the focus of this …

Magnetic and magnetocaloric properties of HoMn 2 O 5 single crystals were investigated.
HoMn 2 O 5 undergoes a large conventional magnetocaloric effect around 10 K. The …

We develop a theory of collective mode dynamics in the helical magnets coupled to electric
polarization via spin-orbit interaction. The low-lying modes associated with the …

The commensurate and incommensurate magnetic structures of the magnetoelectric system
YMn 2 O 5, as determined from neutron diffraction, were found to be spin-density waves …