Core-Shell Magnetic Structure of La1–xSrxMnO $_{3+\delta }$ Nanocrystallites

Belozerova, N. M.; Кичанов, С. Е.; Козленко, Д. П.; Kaman, Ondřej; Jirák, Z.

doi:10.1109/tmag.2017.2700394

Cited by 2 publications

(2 citation statements)

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“…They produce nanoparticles with a high density of crystal defects that are detrimental to magnetotransport and complicate the interpretation of catalytic properties. Some teams reported the use of molten inorganic salts as high temperature liquid media where manganite nanoparticles were formed ,. The particles were nevertheless poorly faceted and still exhibited crystal defects.…”

Section: Introductionmentioning

confidence: 99%

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Versatile Molten Salt Synthesis of Manganite Perovskite Oxide Nanocrystals and Their Magnetic Properties

et al. 2019

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Manganite perovskite oxides exhibit a wide range of properties relevant for catalysis, energy conversion and spintronics. Such behaviors can be deeply modified at the nanoscale where confinement and surface effects may prevail. Interesting properties could then emerge from manganite perovskite nanocrystals, although their synthesis remains a challenge. The present study reports a versatile synthesis of manganite perovskite nanocrystals by using molten salts as high temperature liquids in the 600–750 °C range. Through X‐ray diffraction, X‐ray photoelectron spectroscopy, scanning and transmission electron microscopies, we show that many substitutions on the A perovskite site are within reach by applying the approach to La2/3Sr1/3MnO3, La2/3Ca1/3MnO3 and La1/3Pr1/3Ca1/3MnO3 cubic‐shape nanocrystals with diameter of 20, 22 and 38 nm, respectively. The magnetic properties of these nanocrystals are then investigated at 5 K, highlighting the coexistence of a ferromagnetic phase typical of the bulk, with disordered and non‐magnetic domains, which presumably arise from the nanoscale and surface effects.

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Section: Introductionmentioning

confidence: 99%

“…Some teams reported the use of molten inorganic salts as high temperature liquid media where manganite nanoparticles were formed. [8,[23][24][25][26][27] The particles were nevertheless poorly faceted and still exhibited crystal defects. Faceted cobaltite particles were obtained the same way but at the submicronic scale.…”

Section: Introductionmentioning

confidence: 99%