Presentation Title

Synthesis and magnetic characterization of Holmium orthoferrite HoFe1-xVxO3

Faculty Mentor

Dr. Stephen Tsui

Start Date

18-11-2017 12:30 PM

End Date

18-11-2017 1:30 PM

Location

BSC-Ursa Minor 133

Session

Poster 2

Type of Presentation

Poster

Subject Area

physical_mathematical_sciences

Abstract

The magnetic characteristics of materials are determined by the quantum mechanical spins of their electrons. It is known that orthoferrite compounds possess a spin reorientation (SR) transition whereby the net magnetic moment due to the spin configuration rotates in response to changing temperature. Previous studies have demonstrated that the temperature of the SR transition can be manipulated via chemical substitution in the compound.

In this study we investigate the magnetic characteristics of holmium-based orthoferrite, HoFeO3, that has been chemically doped with V3+doping in place of the Fe3+ ions, yielding HoFe1-xVx O3. Samples were synthesized via solid-state reaction and studied by vibrating sample magnetometry. Results suggest that vanadium substitution interferes with the known Fe-Fe interactions in the compound, allowing the Ho-Fe interactions to dominate the magnetic behavior and increasing the temperature of the SR transition. The manipulation of the SR transition temperature could have potential application in spintronic and sensing technology.

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Nov 18th, 12:30 PM Nov 18th, 1:30 PM

Synthesis and magnetic characterization of Holmium orthoferrite HoFe1-xVxO3

BSC-Ursa Minor 133

The magnetic characteristics of materials are determined by the quantum mechanical spins of their electrons. It is known that orthoferrite compounds possess a spin reorientation (SR) transition whereby the net magnetic moment due to the spin configuration rotates in response to changing temperature. Previous studies have demonstrated that the temperature of the SR transition can be manipulated via chemical substitution in the compound.

In this study we investigate the magnetic characteristics of holmium-based orthoferrite, HoFeO3, that has been chemically doped with V3+doping in place of the Fe3+ ions, yielding HoFe1-xVx O3. Samples were synthesized via solid-state reaction and studied by vibrating sample magnetometry. Results suggest that vanadium substitution interferes with the known Fe-Fe interactions in the compound, allowing the Ho-Fe interactions to dominate the magnetic behavior and increasing the temperature of the SR transition. The manipulation of the SR transition temperature could have potential application in spintronic and sensing technology.