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Dramatic magnetic phase designing in phosphorene.

A K Nair1, P Kumari, M Venkata Kamalakar

  • 1Department of Physics, Indian Institute of Technology Patna, Bihta 801106, India. ray@iitp.ac.in.

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Summary
This summary is machine-generated.

Transition metal doping of phosphorene creates magnetic phases, enabling high-temperature ferromagnetism and antiferromagnetism up to 1150 K. This research offers pathways for advanced 2D spintronic devices using phosphorene.

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Phosphorene, a 2D semiconductor, holds promise for nanoelectronics and spintronics.
  • Inducing magnetic phases in phosphorene is key for developing 2D spintronic circuits.
  • Controlling high-temperature magnetism in doped phosphorene remains a challenge.

Purpose of the Study:

  • To investigate the magnetic properties of phosphorene doped with various 3d transition metals.
  • To determine the feasibility of high-temperature magnetic ordering in doped phosphorene.
  • To explore methods for tuning magnetic phases via doping concentration and atom type.

Main Methods:

  • First-principles calculations were employed to study doping effects.
  • A range of 3d block elements (Sc to Zn) were systematically doped into phosphorene.
  • Mean field theory was used to evaluate magnetic phase stability at high temperatures.

Main Results:

  • Doping phosphorene with 3d transition metals can induce stable ferromagnetism and antiferromagnetism.
  • Achieved magnetic ordering temperatures up to approximately 1150 K.
  • Magnetic ground states (ferromagnetic, antiferromagnetic, non-magnetic) are tunable by doping concentration and element choice.

Conclusions:

  • Transition metal doping offers a viable route to high-temperature magnetism in phosphorene.
  • This study provides guidelines for engineering phosphorene-based spintronic materials.
  • The findings pave the way for all-phosphorene spintronic devices.