Substitution effects on the temperature vs. magnetic-field phase diagrams of the quasi-1D effective Ising spin-1/2 chain system BaCo${}_2$V${}_2$O${}_8$

Abstract

BaCo${}_2$V${}_2$O${}_8$ is a one-dimensional antiferromagnetic spin-1/2 chain system with pronounced Ising anisotropy of the magnetic exchange. Due to finite interchain interactions long-range antiferromagnetic order develops below $T_{\mathrm{N}}\simeq 5.5$ K, which is accompanied by a structural distortion in order to lift magnetic frustration effects. The corresponding temperature $vs.$ magnetic-field phase diagram is highly anisotropic with respect to the magnetic-field direction and various details are still under vivid discussion. Here, we report the influence of several substitutions on the magnetic properties and the phase diagrams of BaCo${}_2$V${}_2$O${}_8$. We investigate the substitution series Ba${}_{\text{1-x}}$Sr${}_{\text{x}}$Co${}_{\text{2}}$V${}_{\text{2}}$O${}_{\text{8}}$ over the full range $0\le x\le 1$ as well as the influence of a partial substitution of the magnetic Co${}^{2+}$ by small amounts of other magnetic transition metals or by non-magnetic magnesium. In all cases, the phase diagrams were obtained on single crystals from magnetization data and/or high-resolution studies of the thermal expansion and magnetostriction.

10 pages, 10 figures

References in corpus (7)

• Controlling orbital moment and spin orientation in CoO layers by strain
• Novel ordering of an S = 1/2 quasi one-dimensional Ising-like anitiferromagnet in magnetic field
• Longitudinal SDW order in a quasi-1D Ising-like quantum antiferromagnet
• Magnetic correlations of the quasi-one-dimensional half-integer spin-chain antiferromagnets Sr$M_2$V${}_2$O${}_8$ ($M$ = Co, Mn)
• Anisotropic Susceptibility of La_2-xSr_xCoO_4 related to the Spin States of Cobalt
• Heat transport of quasi-one-dimensional Ising-like antiferromagnet BaCo_2V_2O_8 in the longitudinal and transverse fields
• Antiferromagnetic Heisenberg S=5/2 spin chain compound SrMn${}_2$V${}_2$O${}_8$

Cited by in corpus (2)

• Multiple field-induced phases in the frustrated triangular magnet Cs${}_3$Fe${}_2$Br${}_9$
• Field-induced antiferromagnetism and Tomonaga-Luttinger liquid behavior in the quasi-one-dimensional Ising-Antiferromagnet SrCo2V2O8