Multiferroic Properties of Pure and Transition Metal Doped LaFeO3 Nanoparticles,Physica Status Solidi (B) - Basic Solid State Physics

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Multiferroic Properties of Pure and Transition Metal Doped LaFeO3 Nanoparticles
Physica Status Solidi (B) - Basic Solid State Physics ( IF 1.5 ) Pub Date : 2020-09-26 , DOI: 10.1002/pssb.202000482
Iliana N. Apostolova ₁ , Angel T. Apostolov ₂ , Steffen Trimper ₃ , Julia M. Wesselinowa ₄

Affiliation

The size, doping concentration, and magnetic field dependences of the magnetization M and the real part of the dielectric function

ε'

in doped

{LaFe}_{1 - x} M_{x} O_{3}

nanoparticles (NPs) are studied using a microscopic model. Although M increases,

ε'

decreases with decreasing NPs size in pure

{LaFeO}_{3}

. Doping with different ions causes different strain which modifies the exchange interaction. As a consequence, M and

ε'

grow with increasing Mn or Zn ion doping, whereas both quantities decrease by doping with Ti or Al ions. The magneto‐dielectric coefficient increases with an applied external magnetic field and Mn doping concentration in pure and Mn‐doped LaFeO₃ indicating that pure and doped