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Giant saturation magnetization effect in epitaxial Fe16N2 thin films grown on MgO (001) substrate
Nian Ji, Valeria Lauter, Hailemariam Ambaye +1
Whether αdouble prime-Fe16N2 possesses a giant saturation magnetization (Ms) has been a daunting problem among magnetic researchers for almost 40 years, mainly due to the unshakabl…
Direct Observation of Giant Saturation Magnetization in Fe16N2
Nian Ji, Valeria Lauter, Cheng-Jun Sun +8
Magnetic materials with giant saturation magnetization have been a holy grail for magnetic researchers and condensed matter physicists for decades because of its great scientific a…
Polarized neutron reflectometry study of Fe16N2 with Giant Saturation Magnetization prepared by N Inter-diffusion in Annealed Fe-N Thin Films
Nian Ji, Valeria Lauter, Hailemariam Ambaye +5
We report a synthesis route to grow iron nitride thin films with giant saturation magnetization (Ms) through an N inter-diffusion process. By post annealing Fe/Fe-N structured film…
Heavy Fermion metal Fe16N2 and its giant magnetic moment
Nian Ji, Xiaoqi Liu, Jian-Ping Wang
A new model is proposed for the strong ferromagnetism associated with partially localized orbitals in the Fe16N2 metallic system which draws substantially from models of heavy ferm…
Discovery of localized states of Fe 3d electrons in Fe16N2 and Fe8N films: an evidence of the existence of giant saturation magnetization
Xiaoqi Liu, Yun-Hao Xu, Cecilia Sanchez-Hanke +1
The mystery of giant saturation magnetization of Fe16N2 has remained for 37 years. In this letter, X-ray absorption spectroscopy (XAS) and magnetic circular dichroism (XMCD) are us…