TY  - JOUR
AU  - Sun, Y. C.
AU  - Ouyang, Z. W.
AU  - Xiao, Y.
AU  - Su, Y.
AU  - Feng, E.
AU  - Fu, Z.
AU  - Jin, W. T.
AU  - Zbiri, M.
AU  - Xia, Z. C.
AU  - Wang, J. F.
AU  - Rao, G. H.
TI  - Honeycomb-lattice antiferromagnet Mn 2 V 2 O 7 : a temperature-dependent x-ray diffraction, neutron diffraction and ESR study
JO  - Materials Research Express
VL  - 4
IS  - 4
SN  - 2053-1591
CY  - Bristol
PB  - IOP Publ.
M1  - FZJ-2018-01470
SP  - 046101 -
PY  - 2017
AB  - Temperature-dependent x-ray diffraction (XRD), neutron powder diffraction and high-field electron spin resonance (ESR) have been employed to study the structural and magnetic properties of distorted honeycomb lattice Mn2V2O7. The XRD data reveal that upon cooling Mn2V2O7 undergoes a martensitic-like β–α structural phase transition at ~270 K. Upon heating, however, the reversible α–β structural transition takes place at ~210 K, showing the first-order feature of the transition. The temperature range, where the two phases coexist, is well determined. With further decrease in temperature, a paramagnetic-to-antiferromagnetic (AFM) phase transition takes place at T N  =  ~23 K as indicated by ESR and neutron powder diffraction data. The ESR data demonstrate the AFM resonance modes below T N, which can be well understood by conventional AFM resonance theory with uniaxial anisotropy.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000398383000001
DO  - DOI:10.1088/2053-1591/aa67d6
UR  - https://juser.fz-juelich.de/record/843947
ER  -