Manipulating the Magnetic Structure with Electric Fields in MultiferroicErMn2O5

Abstract

Based on measurements of soft x-ray magnetic diffraction under in situ applied electric field, we report on significant manipulation and exciting of commensurate magnetic order in multiferroic ErMn2O5. The induced magnetic scattering intensity arises at the commensurate magnetic Bragg position whereas the initial magnetic signal almost persists. We demonstrate the possibility to imprint a magnetic response function in ErMn2O5 by applying an electric field.

Kinetics of the multiferroic switching inMnWO4

“…At 10 K we switched at the following frequencies (chronological order): 10,12,5,8,20, and 40 Hz. The measured curves at 5, 10, 20, and 40 Hz are shown in Fig.…”

“…The ferroelectric polarization can be modified by an external magnetic field [3][4][5][6][7] in these multiferroic materials. The opposite direction is more difficult to study, as the complex antiferromagnetic order requires a microscopic technique directly probing the spin arrangement [8][9][10][11][12] . Using polarized neutron scattering it has been shown in TbMnO 3 13 , LiCu 2 O 2 14 and in MnWO 4 15 that the chiral component (i.e.…”

The contribution of Diamond Light Source to the study of strongly correlated electron systems and complex magnetic structures

“…Nevertheless, significant insights have been obtained using RSXD [44][45][46], and RSXD is also an area of active interest for Diamond theorists [47][48][49][50]. A good example is provided by the so-called hexaferrites.…”

Control of coexisting magnetic phases by electric fields inNdFe3(BO3)4

“…Indeed, earlier experiments could demonstrate modifications of a magnetic order related to the reversal of the electric polarization [9][10][11]. These studies, however, were concerned with electric field induced changes within a single magnetic phase or the manipulation of phase stability close to a magnetic transition [12].…”

“…Indeed, earlier experiments could demonstrate modifications of a magnetic order related to the reversal of the electric polarization [9][10][11]. These studies, however, were concerned with electric field induced changes within a single magnetic phase or the manipulation of phase stability close to a magnetic transition [12].In the present study we consider a different situation, where frustrated magnetic interactions cause two distinct ordered states to be metastable well below the observed critical temperatures, even in the absence of any first order transition. As a specific example, we investigated the electric field dependence of the magnetic order in NdFe 3 (BO 3 ) 4 , which is a frustrated magnetic material with a large magnetoelectric response [13].…”