2013/04/24 by Alex Taekyung Lee, Myung Joon Han
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Charge (physics) #Condensed matter physics #Electronic and Structural Properties of Oxides #Ferromagnetism #Magnetic and transport properties of perovskites and related materials #Physics #Quantum mechanics #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.88.035126
published as Phys. Rev. B 88, 035126 (2013)
arxiv created 2013/04/24 · openalex publication_date 2013/07/22 · arxiv updated 2013/07/24 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Using first-principles density functional theory calculations, we investigated the electronic structure and magnetic properties of (LaMnO3)m/(LaNiO3)n superlattices stacked along the (001) direction. The electrons are transferred from Mn to Ni, and the magnetic moments are induced at Ni sites that are paramagnetic in bulk and other types of superlattices. The size of the induced moment is linearly proportional to the amount of transferred electrons, but it is larger than the net charge transfer. The charge transfer and magnetic properties of the (m,n) superlattice can be controlled by changing the m/n ratio. Considering the ferromagnetic couplings between Mn and Ni spins and the charge-transfer characteristic, we propose the (2,1) superlattice as the largest moment superlattice. carrying \ensuremath∼8\ensuremathμB per formula unit.