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Magneto-optical Kerr effect in surface engineered 2D hexagonal boron nitride.

Ziba Torkashvand¹, Kavoos Mirabbaszadeh², Farzaneh Shayeganfar¹

¹Department of Physics and Energy Engineering, Amirkabir University of Technology, Tehran, 15875-4413, Iran.

Scientific Reports

|June 28, 2022

Summary

This summary is machine-generated.

Oxygen functionalized hexagonal boron nitride (hBN) exhibits significant magneto-optical Kerr effects. This 2D material shows potential for designing advanced magneto-optical devices, even at high temperatures.

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Area of Science:

Condensed Matter Physics
Materials Science
Nanotechnology

Background:

Atomically thin functional materials are crucial for exploring 2D magneto-optics.
Magneto-optical experimental data show significant Kerr signals in insulator thin films.

Purpose of the Study:

Investigate the magneto-optical Kerr effect in oxygen functionalized and doped hexagonal boron nitride (hBN).
Calculate Kerr angle and Kerr ellipticity for functionalized hBN.
Explore the impact of oxygen doping on hBN's properties.

Main Methods:

First-principles calculations were employed to study the magneto-optical Kerr effect.
Kerr angle and Kerr ellipticity were computed for functionalized hBN.

Main Results:

Functionalized hBN demonstrates significant magneto-optical Kerr signals.
Increasing oxygen doping introduces surface plasmon resonance in hBN.
Functionalized hBN maintains structural integrity (bridge-bonded oxygen) at high temperatures.

Conclusions:

Functionalized hBN exhibits giant opto/magnetic responses, suitable for insulating 2D materials.
These findings offer a platform for designing novel magneto-optical devices.