TY - JOUR
T1 - Magnetic ordering and spin dynamics in the S= 52 staggered triangular lattice antiferromagnet Ba2MnTe O6
AU - Li, Lisi
AU - Narayanan, Narendirakumar
AU - Jin, Shangjian
AU - Yu, Jia
AU - Liu, Zengjia
AU - Sun, Hualei
AU - Wang, Chin Wei
AU - Peterson, Vanessa K.
AU - Liu, Yun
AU - Danilkin, Sergey
AU - Yao, Dao Xin
AU - Yu, Dehong
AU - Wang, Meng
N1 - Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - We report studies of the magnetic properties of a staggered stacked triangular lattice Ba2MnTeO6 using magnetic susceptibility, specific heat, neutron powder diffraction, inelastic neutron scattering measurements, and first-principles density functional theory calculations. Neutron diffraction measurements reveal Ba2MnTeO6 to be antiferromagnetically ordered with a propagation vector k=(0.5,0.5,0) and Neél transition temperature of TN≈20 K. The dominant interaction derived from the Curie-Weiss fitting to the inverse DC susceptibility is antiferromagnetic. Modeling of the inelastic neutron scattering data with linear spin wave theory yielded magnetic exchange interactions for the nearest intralayer, nearest interlayer, and next-nearest interlayer of J1=0.27(3), meV J2=0.27(3) meV, and J3=-0.05(1) meV, respectively, and a small value of easy-axis anisotropy of Dzz=-0.01 meV. We derive a magnetic phase diagram that reveals a collinear stripe-type antiferromagnetic order that is stabilized by the competition between J1,J2, and J3.
AB - We report studies of the magnetic properties of a staggered stacked triangular lattice Ba2MnTeO6 using magnetic susceptibility, specific heat, neutron powder diffraction, inelastic neutron scattering measurements, and first-principles density functional theory calculations. Neutron diffraction measurements reveal Ba2MnTeO6 to be antiferromagnetically ordered with a propagation vector k=(0.5,0.5,0) and Neél transition temperature of TN≈20 K. The dominant interaction derived from the Curie-Weiss fitting to the inverse DC susceptibility is antiferromagnetic. Modeling of the inelastic neutron scattering data with linear spin wave theory yielded magnetic exchange interactions for the nearest intralayer, nearest interlayer, and next-nearest interlayer of J1=0.27(3), meV J2=0.27(3) meV, and J3=-0.05(1) meV, respectively, and a small value of easy-axis anisotropy of Dzz=-0.01 meV. We derive a magnetic phase diagram that reveals a collinear stripe-type antiferromagnetic order that is stabilized by the competition between J1,J2, and J3.
UR - http://www.scopus.com/inward/record.url?scp=85093073787&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.102.094413
DO - 10.1103/PhysRevB.102.094413
M3 - Article
SN - 2469-9950
VL - 102
JO - Physical Review B
JF - Physical Review B
IS - 9
M1 - 094413
ER -