2016
DOI: 10.1063/1.4953828
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Site-mixing effect on the XMCD spectrum in double perovskite Bi2FeMnO6

Abstract: We investigate magnetization in double perovskite multiferroic Bi 2 FeMnO 6 (BFMO) thin film using density functional theory (DFT) simulations, and X-ray magnetic circular dichroism (XMCD) measurements. The exchange interaction between Fe and Mn sites gives rise to a ferrimagnetic ordering in BFMO. When grown without structural defects, distinct XMCD signal is expected from this system. The site resolved magnetization, thus, can be extracted using XMCD sum rules. Although our theoretical calculations are consi… Show more

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Cited by 16 publications
(14 citation statements)
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“…Although our theoretical calculations qualitatively show the XMCD signal characteristics of the pure BFMO sample, the experimental XMCD spectra show wiggles in L 2 /L 3 edges, cancelling the net magnetic moment possibly due to mixed-valence 7 states of Fe or Mn ions or site mixing between Fe or Mn ions. 33 With the XMCD sum rules, the details of which are given in the supplementary material, we find that the spin and orbital moments of Fe and Mn are consistent with those obtained directly from the self-consistent calculations using the spin-dependent GGA functional. In the supplementary material, we tabulate all of our calculated sum rule components as well as the orbital and spin magnetic moments along with other quantities.…”
Section: Figsupporting
confidence: 68%
“…Although our theoretical calculations qualitatively show the XMCD signal characteristics of the pure BFMO sample, the experimental XMCD spectra show wiggles in L 2 /L 3 edges, cancelling the net magnetic moment possibly due to mixed-valence 7 states of Fe or Mn ions or site mixing between Fe or Mn ions. 33 With the XMCD sum rules, the details of which are given in the supplementary material, we find that the spin and orbital moments of Fe and Mn are consistent with those obtained directly from the self-consistent calculations using the spin-dependent GGA functional. In the supplementary material, we tabulate all of our calculated sum rule components as well as the orbital and spin magnetic moments along with other quantities.…”
Section: Figsupporting
confidence: 68%
“…In the recent years, there has been considerable theoretical and experimental interest in creating layered compounds and superstructures by design due to their enormous potential for achieving various emergent functionalities (e.g., superconductivity, 23,24 multiferroics 25,26 ). A common strategy employed in synthesis efforts is to attempt the creation of a new superstructure with desired electronic properties by overlaying two or more compounds with different chemical compositions but similar crystal symmetries.…”
Section: Perovskite Heterostructure Predictionmentioning
confidence: 99%
“…Figure a shows that the saturated magnetic hysteresis loops of the BFMO/LCMO heterostructure at 10 K were obtained after field cooling (FC) from room temperature in an in‐plane field of 3 kOe. All the pure BFMO with canted antiferromagnetic (AFM) ordering show weak ferromagnetic properties and the magnetism of BFMO is influenced by many factors including oxygen vacancies, strain, thickness, phase change, etc., as shown in Figure S1 (Supporting Information) . When materials with FM–AFM interfaces are cooled in an external field, exchange anisotropy is induced in the FM material.…”
Section: Resultsmentioning
confidence: 99%