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Proximity‐Induced Novel Ferromagnetism Accompanied with Resolute Metallicity in NdNiO 3 Heterostructure
Author(s) -
Caputo Marco,
Ristic Zoran,
Dhaka Rajendra S.,
Das Tanmoy,
Wang Zhiming,
Matt Christan E.,
Plumb Nicholas C.,
Guedes Eduardo B.,
Jandke Jasmin,
Naamneh Muntaser,
Zakharova Anna,
Medarde Marisa,
Shi Ming,
Patthey Luc,
Mesot Joël,
Piamonteze Cinthia,
Radović Milan
Publication year - 2021
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.202101516
Subject(s) - condensed matter physics , ferromagnetism , angle resolved photoemission spectroscopy , materials science , manganite , heterojunction , magnetic circular dichroism , photoemission spectroscopy , ground state , fermi level , metal–insulator transition , antiferromagnetism , electronic structure , x ray photoelectron spectroscopy , physics , metal , nuclear magnetic resonance , spectral line , atomic physics , electron , metallurgy , astronomy , quantum mechanics
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 NdNiO 3 (NNO) film in proximity to ferromagnetic (FM) La 0.67 Sr 0.33 MnO 3 (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 ( E F ), 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 RENiO 3 (RE = rare‐earth element).

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