Chillal, S.; Islam, N.A.T.M.; Luetkens, H.; Canevet, E.; Skourski, Y.; Khalyavin, D.; Lake, B.: Magnetic structure of the quantum magnet SrCuTe2O6. Physical Review B 102 (2020), p. 224424/1-11
10.1103/PhysRevB.102.224424
Open Access Version
Abstract:
SrCuTe2O6 consists of a three-dimensional arrangement of spin-1/2 Cu2+ ions. The first-, second-, and third-neighbor interactions, respectively, couple Cu2+ moments into a network of isolated triangles, a highly frustrated hyperkagome lattice consisting of corner-sharing triangles and antiferromagnetic chains. Of these, the chain interaction dominates in SrCuTe2O6 while the other two interactions lead to frustrated interchain coupling giving rise to long-range magnetic order at suppressed temperatures. In this paper, we investigate the magnetic properties in SrCuTe2O6 using muon relaxation spectroscopy and neutron diffraction and present the low-temperature magnetic structure as well as the directional-dependent magnetic phase diagram as a function of field.