Magnetic and electronic properties of B-site-ordered double-perovskite oxide La2CrMnO6 thin films

We report on magnetic and electronic properties of the B-site-ordered double-perovskite La2CrMnO6 films grown by pulsed-laser deposition. The magnetic-field dependence of magnetization curves showed hysteresis at low temperatures regardless of the degree of Cr/Mn order and the saturation magnetizati...

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Bibliographic Details
Published in:Physical review. B 2019-06, Vol.99 (23), p.1
Main Authors: Yoshimatsu, K, Ishimaru, J, Watarai, K, Yamamoto, K, Hirata, Y, Wadati, H, Takeda, Y, Horiba, K, Kumigashira, H, Sakata, O, Ohtomo, A
Format: Article
Language:English
Subjects:
Antiferromagnetism
Dependence
Dichroism
Ferrimagnetism
Magnetic properties
Magnetic saturation
Magnetization
Magnetization curves
Manganese ions
Nickel
Perovskites
Photoelectric emission
Pulsed laser deposition
Pulsed lasers
Spectrum analysis
Thin films
Transition metals
X ray absorption
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Summary:We report on magnetic and electronic properties of the B-site-ordered double-perovskite La2CrMnO6 films grown by pulsed-laser deposition. The magnetic-field dependence of magnetization curves showed hysteresis at low temperatures regardless of the degree of Cr/Mn order and the saturation magnetization became smaller for the higher-Cr/Mn-ordered film. The x-ray absorption spectroscopy and x-ray magnetic circular dichroism measurements suggested antiferromagnetic coupling between Cr3+ and Mn3+ ions, resulting in ferrimagnetism of the B-site-ordered double-perovskite La2CrMnO6. A band structure was established by combining these results together with the synchrotron-radiation photoemission and optical spectra. We discuss the magnetic states among the B-site-ordered La2B′MnO6 (B′:3d transition-metal elements from V to Ni) being basically consistent with the Kanamori-Goodenough rule.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.99.235129