Project Title

Physical properties of polar magnetic oxide HoCrWO6

Presenters

Academic department under which the project should be listed

CSM - Physics

Faculty Sponsor Name

Chetan Dhital

Abstract (300 words maximum)

Polar magnetic oxides are interesting systems to study due to the possibility of hosting functional properties such as ferroelectricity, piezoelectricity etc. In this work, a new compound HoCrWO6 is synthesized using high temperature solid state reaction and characterized using x-ray diffraction, neutron diffraction, magnetization measurements and dielectric measurements. The x-ray and neutron diffraction results indicate that HoCrWO6 crystallizes in polar (non-centrosymmetric and achiral) orthorhombic structure P n a 21. The magnetization measurements indicate that HoCrWO6 exhibit paramagnetic to antiferromagnetic transition at TN = 24 K. The magnetic structure is also determined using neutron diffraction. The magnetic structure represents collinear arrangement of Cr spins and non-coplanar arrangement of Ho spins. The dielectric measurements indicate a weak anomaly at the magnetic transition.

Project Type

Poster

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Physical properties of polar magnetic oxide HoCrWO6

Polar magnetic oxides are interesting systems to study due to the possibility of hosting functional properties such as ferroelectricity, piezoelectricity etc. In this work, a new compound HoCrWO6 is synthesized using high temperature solid state reaction and characterized using x-ray diffraction, neutron diffraction, magnetization measurements and dielectric measurements. The x-ray and neutron diffraction results indicate that HoCrWO6 crystallizes in polar (non-centrosymmetric and achiral) orthorhombic structure P n a 21. The magnetization measurements indicate that HoCrWO6 exhibit paramagnetic to antiferromagnetic transition at TN = 24 K. The magnetic structure is also determined using neutron diffraction. The magnetic structure represents collinear arrangement of Cr spins and non-coplanar arrangement of Ho spins. The dielectric measurements indicate a weak anomaly at the magnetic transition.