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Updated: May 14, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
Successive phase transitions and extended spin-excitation continuum in the S=1/2 triangular-lattice antiferromagnet
H D Zhou1, Cenke Xu, A M Hallas
1Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200, USA. hzhou10@utk.edu
Abstract:
Using magnetic, thermal, and neutron measurements on single-crystal samples, we show that Ba3CoSb2O9 is a spin-1/2 triangular-lattice antiferromagnet with the c axis as the magnetic easy axis and two magnetic phase transitions bracketing an intermediate up-up-down phase in magnetic field applied along the c axis. A pronounced extensive neutron-scattering continuum above spin-wave excitations, observed below T(N), implies that the system is in close proximity to one of two spin-liquid states that have been predicted for a 2D triangular lattice.
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