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Proximity-Induced Novel Ferromagnetism Accompanied with Resolute Metallicity in NdNiO3 Heterostructure

Caputo, M and Ristic, Z and Dhaka, RS and Das, T and Wang, Z and Matt, CE and Plumb, NC and Guedes, EB and Jandke, J and Naamneh, M and Zakharova, A and Medarde, M and Shi, M and Patthey, L and Mesot, J and Piamonteze, C and Radovi�, M (2021) Proximity-Induced Novel Ferromagnetism Accompanied with Resolute Metallicity in NdNiO3 Heterostructure. In: Advanced Science .

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Official URL: https://doi.org/10.1002/advs.202101516


Employing X-ray magnetic circular dichroism (XMCD), angle-resolved photoemission spectroscopy (ARPES), and momentum-resolved density fluctuation (MRDF) theory, the magnetic and electronic properties of ultrathin NdNiO3 (NNO) film in proximity to ferromagnetic (FM) La0.67Sr0.33MnO3 (LSMO) layer are investigated. The experimental data shows the direct magnetic coupling between the nickelate film and the manganite layer which causes an unusual ferromagnetic (FM) phase in NNO. Moreover, it is shown the metal�insulator transition in the NNO layer, identified by an abrupt suppression of ARPES spectral weight near the Fermi level (EF), is absent. This observation suggests that the insulating AFM ground state is quenched in proximity to the FM layer. Combining the experimental data (XMCD and AREPS) with the momentum-resolved density fluctuation calculation (MRDF) reveals a direct link between the MIT and the magnetic orders in NNO systems. This work demonstrates that the proximity layer order can be broadly used to modify physical properties and enrich the phase diagram of RENiO3 (RE = rare-earth element). © 2021 The Authors. Advanced Science published by Wiley-VCH GmbH.

Item Type: Journal Article
Publication: Advanced Science
Publisher: John Wiley and Sons Inc
Additional Information: The copyright for this article belongs to Author
Keywords: Circular dichroism spectroscopy; Dichroism; Electronic properties; Ferromagnetic materials; Ferromagnetism; Frequency modulation; Ground state; Lanthanum compounds; Manganese compounds; Manganites; Metal insulator transition; Photoelectron spectroscopy; Rare earths; Strontium compounds, Angle resolved photoemission spectroscopy; Density fluctuation; Layer ordering; Magnetic and electronic properties; Magnetic orders; Metallicities; Spectral weight; X-ray magnetic circular dichroism, Nickel compounds
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 21 Nov 2021 16:29
Last Modified: 21 Nov 2021 16:29
URI: http://eprints.iisc.ac.in/id/eprint/69947

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