Spin liquid behaviour in Jeff=1/2 triangular lattice Ba3IrTi2O9

Abstract

Ba3IrTi2O9 crystallizes in a hexagonal structure consisting of a layered triangular arrangement of Ir4+ (Jeff=1/2). Magnetic susceptibility and heat capacity data show no magnetic ordering down to 0.35K inspite of a strong magnetic coupling as evidenced by a large Curie-Weiss temperature=-130K. The magnetic heat capacity follows a power law at low temperature. Our measurements suggest that Ba3IrTi2O9 is a 5d, Ir-based (Jeff=1/2), quantum spin liquid on a 2D triangular lattice.

10 pages including supplemental material, to be published in Phys. Rev. B (Rapid Comm.)

References in corpus (5)

• Novel Jeff = 1/2 Mott State Induced by Relativistic Spin-Orbit Coupling in Sr2IrO4
• Spin Dynamics of the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu_3(OH)_6Cl_2
• Spin-Liquid State in the S = 1/2 Hyperkagome Antiferromagnet Na4Ir3O8
• Quantum magnetism in the paratacamite family: towards an ideal kagome lattice
• The magnetic groundstate of an experimental $S=1/2$ kagomé antiferromagnet

Cited by in corpus (1)

• Electronic Structure and magnetism in Ir based double-perovskite Sr${}_2$CeIrO${}_6$