TY  - JOUR
AU  - Kumar, Yogesh
AU  - Kalal, Shailesh
AU  - Tayal, Akhil
AU  - Gupta, Mukul
TI  - Crystal structure of MnN resolved using x-ray absorption fine structure
JO  - Journal of alloys and compounds
VL  - 1038
SN  - 0925-8388
CY  - Lausanne
PB  - Elsevier
M1  - PUBDB-2025-03812
SP  - 182507
PY  - 2025
AB  - The potential of manganese mononitride (MnN) as an antiferromagnetic material for exchange bias applications is significant, yet its crystal structure is a subject of ongoing debate. Early 3 transition metal mononitrides, such as TiN, and VN, are well-known to crystallize in the rock salt (RS) structure, whereas later ones, like CoN and FeN, favor the zinc blende (ZB) structure. The structural ambiguity of MnN, positioned midway in the 3 series, necessitates further investigation. This study employs a comprehensive x-ray absorption fine structure (XAFS) analysis to clarify the crystal structure of MnN. Single-phase MnN thin films, produced by reactive magnetron sputtering, are characterized using x-ray diffraction (XRD), x-ray absorption near edge structure (XANES), and extended x-ray absorption fine structure (EXAFS). XRD data indicates the successful formation of the MnN phase during the reactive nitrogen sputtering of Mn. By analyzing XANES spectra at the Mn K and L-edges, as well as the N K-edge, and combining the results with EXAFS analysis, this study concludes that MnN crystallizes in the RS structure. The sensitivity of the metal K-edge XANES pre-edge peak to local coordination symmetry is crucial in this determination.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1016/j.jallcom.2025.182507
UR  - https://bib-pubdb1.desy.de/record/637203
ER  -