TY - JOUR
T1 - Kinetic-arrest-induced phase coexistence and metastability in (Mn,Fe)2(P,Si)
AU - Miao, X. F.
AU - Mitsui, Y.
AU - Dugulan, A. Iulian
AU - Caron, L.
AU - Thang, N. V.
AU - Manuel, P.
AU - Koyama, K.
AU - Takahashi, K.
AU - Van Dijk, N. H.
AU - Brück, E.
PY - 2016/9/22
Y1 - 2016/9/22
N2 - Neutron diffraction, Mössbauer spectroscopy, magnetometry, and in-field x-ray diffraction are employed to investigate the magnetoelastic phase transition in hexagonal (Mn,Fe)2(P,Si) compounds. (Mn,Fe)2(P,Si) compounds undergo for certain compositions a second-order paramagnetic (PM) to a spin-density-wave (SDW) phase transition before further transforming into a ferromagnetic (FM) phase via a first-order phase transition. The SDW-FM transition can be kinetically arrested, causing the coexistence of FM and untransformed SDW phases at low temperatures. Our in-field x-ray diffraction and magnetic relaxation measurements clearly reveal the metastability of the untransformed SDW phase. This unusual magnetic configuration originates from the strong magnetoelastic coupling and the mixed magnetism in hexagonal (Mn,Fe)2(P,Si) compounds.
AB - Neutron diffraction, Mössbauer spectroscopy, magnetometry, and in-field x-ray diffraction are employed to investigate the magnetoelastic phase transition in hexagonal (Mn,Fe)2(P,Si) compounds. (Mn,Fe)2(P,Si) compounds undergo for certain compositions a second-order paramagnetic (PM) to a spin-density-wave (SDW) phase transition before further transforming into a ferromagnetic (FM) phase via a first-order phase transition. The SDW-FM transition can be kinetically arrested, causing the coexistence of FM and untransformed SDW phases at low temperatures. Our in-field x-ray diffraction and magnetic relaxation measurements clearly reveal the metastability of the untransformed SDW phase. This unusual magnetic configuration originates from the strong magnetoelastic coupling and the mixed magnetism in hexagonal (Mn,Fe)2(P,Si) compounds.
UR - http://resolver.tudelft.nl/uuid:63a122ec-60ab-4c05-a12c-3103a54729b3
UR - http://www.scopus.com/inward/record.url?scp=84991000209&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.94.094426
DO - 10.1103/PhysRevB.94.094426
M3 - Article
AN - SCOPUS:84991000209
SN - 1098-0121
VL - 94
JO - Physical Review B (Condensed Matter and Materials Physics)
JF - Physical Review B (Condensed Matter and Materials Physics)
IS - 9
M1 - 094426
ER -