Avoided quasiparticle decay and enhanced excitation continuum in the spin-1/2 near-Heisenberg triangular antiferromagnet Ba3CoSb2O9

We explore the magnetic excitations of the spin-1/2 triangular antiferromagnet Ba3CoSb2O9 in its 120 degree ordered phase using single-crystal high-resolution inelastic neutron scattering. Sharp magnons with no decay are observed throughout reciprocal space, with a strongly renormalized dispersion a...

पूर्ण विवरण

ग्रंथसूची विवरण
मुख्य लेखकों: Macdougal, D, Williams, S, Prabhakaran, D, Bewley, RI, Voneshen, DJ, Coldea, R
स्वरूप: Journal article
भाषा:English
प्रकाशित: American Physical Society 2020