Journal Article

PUBDB-2025-02173

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Unlocking Exceptional Negative Valency and Spin Reconstruction in Non‐Collinear Anti‐Ferromagnetic Antiperovskite Mn$_3$NiN Film

Keshri, A.Extern* ; Das, P.Extern* ; Devaraj, N. ; Chowdhury, S.Extern*DESY* ; Dey, J. K.DESY* ; Ojha, S. ; Gupta, P.Extern* ; Hoesch, M.DESY* ; Afaneh, F.Extern* ; Roul, B. ; Venkatesan, T. ; Saha, B.Extern* ; Narayan, A. ; Bibes, M. ; Das, S. (Corresponding author)Extern*

2025
Wiley-VCH Weinheim

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Please use a persistent id in citations: doi:10.1002/adfm.202500655

Abstract: Antiperovskite manganese nitrides have intriguing magnetic and electronic properties that are not well understood. Just as their perovskite oxide counterparts, they are expected to display properties tunable through epitaxial strain engineering, which has barely been explored yet. Here, three notable contributions are made to the understanding and tuning of these fascinating materials, focusing on Mn$_3$NiN. First, combining X-ray spectroscopy measurements and first-principles calculations, an unusually large negative oxidation state of Ni$^{3−}$is reported. Second, a substantial shift of the antiferromagnetic ordering temperature by 116 K, from 266 to 150 K, is reported by growing Mn3NiN films on different substrates. This shift is due to the mixed contributions of ferrimagnetic and antiferromagnetic phases. Third, a plasmonic signature with a high optical extinction coefficient in the infrared to visible range is exhibited, tunable by different substrates. The findings suggest that Mn3NiN has significant potential in antiferromagnetic spintronics, and plasmonics, expanding the scope of new materials for electromagnetic field-controlled plasmonics, piezo spintronics, and multicaloric applications.

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Contributing Institute(s):

1. FS DOOR-User (FS DOOR-User)
2. Experimentebetreuung PETRA III (FS-PET-S)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. INDIA-DESY - INDIA-DESY Collaboration (2020_Join2-INDIA-DESY) (2020_Join2-INDIA-DESY)

Experiment(s):

1. PETRA Beamline P04 (PETRA III)

Appears in the scientific report 2025

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 15 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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