Antiferromagnetic Heisenberg S=5/2 spin chain compound SrMn$_2$V$_2$O$_8$

TL;DR

This study reports the synthesis and magnetic characterization of SrMn$_2$V$_2$O$_8$, a new antiferromagnetic S=5/2 spin chain compound with one-dimensional magnetic behavior and long-range order below 43 K.

Contribution

First synthesis and detailed magnetic analysis of SrMn$_2$V$_2$O$_8$, revealing its antiferromagnetic properties and one-dimensional magnetic behavior.

Findings

Exhibits antiferromagnetic order below 43 K

Displays one-dimensional magnetic behavior above T_N

Has a classical long-range ordered antiferromagnetic ground state

Abstract

Large single crystals of the new compound SrMn$_2$V$_2$O$_8$ have been grown by the floating-zone method. This transition-metal based oxide is isostructural to SrNi$_2$V$_2$O$_8$, described by the tetragonal space group $I4_1cd$. Magnetic properties were investigated by means of susceptibility, magnetization, and specific heat measurements. The title compound behaves like a one-dimensional magnetic system above the ordering temperature ($T_N$ = 43 K). The magnetic ground state can be described as a classical long-range ordered antiferromagnet with weak anisotropy.