# Niobium Phosphorus Trichalcogenide (NbPS3): A Promising Monolayer Material for Magnetic and Optoelectronic Applications

## TL;DR

This paper explores a new material, NbPS3, which shows promise for use in spintronics and optoelectronics due to its magnetic and optical properties.

## Contribution

The study introduces and characterizes the novel monolayer material NbPS3 for potential spintronic and optoelectronic applications.

## Key findings

- NbPS3 is a spin-dependent half-metallic material suitable for spintronic devices.
- NbPS3 absorbs visible light (640-660 nm) and is sensitive to light polarization.
- The material is dynamically and thermally stable, with calculated IR and Raman spectra.

## Abstract

In this study, a novel monolayer of niobium phosphorus
trichalcogenide
(NbPS3) is investigated. The structural, electronic, magnetic,
optical, vibrational (phonons, infrared (IR), and Raman), and thermodynamic
properties were studied by using density functional theory. Electronic
and magnetic properties showed that NbPS3 is a spin-dependent
half-metallic with potential for spintronic application devices. NbPS3 absorbs in the visible region, corresponding to the red color
(∼640 to 660 nm), and is sensitive to the plane of polarization
of the incident light. Furthermore, the phonon dispersion calculation
shows only positive frequencies, indicating dynamic stability, and
the theoretical peaks of the IR and Raman spectra were studied and
assigned, providing a solid basis for comparison with theoretical
and experimental data. Ab initio molecular dynamics simulations showed
the thermal stability of NbPS3 at temperatures of 300 and
600 K. In addition, thermodynamic properties were calculated and discussed.
The results demonstrate that the NbPS3 monolayer is feasible,
with potential applications in optoelectronics and spintronics.