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@ARTICLE{Karanje:643552,
author = {Karanje, Renuka and Bera, Anupam and Rudra, Sourav and
Mukhopadhyay, Debmalya and Banerjee, Souvik and Bansal,
Manisha and Baraik, Kiran and Chowdhury, Sourav and Li,
Weibin and Valvidares, Manuel and Maity, Tuhin and Saha,
Bivas},
title = {{O}rbital {A}ngular {M}omentum-{D}riven {F}erromagnetism
with {M}agnetic {A}nisotropy and {E}lectronic {S}tructure of
{E}pitaxial {N}eodymium {N}itride},
journal = {ACS nano},
volume = {19},
number = {41},
issn = {1936-0851},
address = {Washington, DC},
publisher = {Soc.},
reportid = {PUBDB-2026-00282},
pages = {36636 - 36645},
year = {2025},
note = {Waiting for fulltext},
abstract = {Neodymium-based permanent magnets are fundamental to modern
technologies, underpinning high-performance applications in
electronics, renewable energy, and advanced medical systems.
Among emerging neodymium compounds, neodymium nitride (NdN)
has attracted significant attention due to its unique
electronic structure, where strongly localized 4f orbitals
and strong spin–orbit coupling are anticipated to drive
exceptional magnetic behavior. Here, we show conclusive
experimental evidence of orbital angular momentum-driven
ferromagnetic ordering and prominent magnetic anisotropy in
epitaxial, near-stoichiometric NdN thin films synthesized
using ultrahigh vacuum deposition techniques. Magnetization
and X-ray magnetic circular dichroism measurements reveal a
dominant 4f orbital moment of 5.14 μB, contributing to a
total magnetic moment of 2.43 μB per formula unit at 4 K,
close to the first-principles density functional theory
calculated values. Complementary synchrotron-radiation
photoelectron spectroscopy, along with the theoretical
calculations, uncovers occupied 4f states ∼6.4 eV below
the Fermi level, contributing to the orbital-driven
ferromagnetism in NdN. Moreover, the high crystalline
quality of the NdN films is further supported by the
structural characterization and vibrational properties. The
intrinsic orbital angular momentum-driven magnetism of NdN
positions it as a promising platform for next-generation
orbitronic devices beyond conventional spintronics.},
cin = {FS-PETRA-S},
ddc = {540},
cid = {I:(DE-H253)FS-PETRA-S-20210408},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632)},
pid = {G:(DE-HGF)POF4-632},
experiment = {EXP:(DE-MLZ)External-20140101},
typ = {PUB:(DE-HGF)16},
doi = {10.1021/acsnano.5c11890},
url = {https://bib-pubdb1.desy.de/record/643552},
}