Magnetic field induced modification of the incommensurate antiferromagnetic structure of Fe-doped MnNiGe alloys,Physical Review B

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Magnetic field induced modification of the incommensurate antiferromagnetic structure of Fe-doped MnNiGe alloys
Physical Review B ( IF 3.2 ) Pub Date : 2024-09-09 , DOI: 10.1103/physrevb.110.094415
Riya Roy ₁ , Sanat Kumar Adhikari ₁ , Sambhu Charan Das _{1,

2} , Rosni Roy ₁ , Kanai Mondal ₁ , Jhuma Sannigrahi ₃ , Sabyasachi Pramanick ₁ , Kalyanashis De ₄ , Dmitry Khalyavin _{5,

6} , Devashibhai T. Adroja _{5,

6,

7} , Rajib Mondal ₁ , Souvik Chatterjee ₁

Affiliation

The evolution of the magnetic structure of Fe-doped MnNiGe alloys of nominal compositions

{MnNi}_{0.75} {Fe}_{0.25} Ge

and

{Mn}_{0.85} {Fe}_{0.15} NiGe

has been probed through neutron powder diffraction (NPD) experiments in the presence of external magnetic fields (

H

). Application of external

H

results in a significant decrease in the antiferromagnetic satellite peak's intensities along with a considerable change in the incommensurate propagation vector

k_{AFM} = (k_{a}, 0, 0)

. In addition, a reasonable increase in some of the nuclear reflections has also been noticed, which can clearly be described by the ferromagnetic propagation vector