Magnetostriction-polarization coupling in multiferroic Mn2MnWO6.

摘要: Double corundum-related polar magnets are promising materials for multiferroic and magnetoelectric applications in spintronics. However, their design synthesis is a challenge, coupling has only been observed Ni3TeO6 among the known double corundum compounds to date. Here we address high-pressure of new antiferromagnetic derivative Mn2MnWO6, which adopts Ni3TeO6-type structure with low temperature first-order field-induced metamagnetic phase transitions (T N = 58 K) high spontaneous polarization (~ 63.3 μC·cm−2). The magnetostriction-polarization Mn2MnWO6 evidenced by second harmonic generation effect, corroborated magnetic-field-dependent pyroresponse behavior, together dielectric measurements, qualitatively indicate coupling. Piezoresponse force microscopy imaging spectroscopy studies on show switchable polarization, motivates further exploration effect single crystal/thin film specimens. spintronics, but limited challenging synthesis. authors report as well its appealing properties.