Magnetic properties of the antiferromagnetic spin-1/2 chain system $\beta$-TeVO${}_4$

Abstract

The magnetic susceptibility and magnetization of high quality single crystal beta-TeVO4 are reported. We show that this compound, made of weakly coupled infinite chains of VO5 pyramids sharing corners, behaves as a S = 1/2 one-dimensional Heisenberg antiferromagnet. From magnetic experiments we deduce the intrachain antiferromagnetic coupling constant J/kB = 21.4 $\pm$ 0.2 K. Below 5 K a series of three phase transitions at 2.26, 3.28 and 4.65 K is observed.

Accepted for publication in Physical Review B

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• Spin waves and magnetic interactions in LiCu2O2
• Helicoidal magnetic order in a clean copper oxide spin chain compound
• Leading interactions in the $\beta$-$Sr{V}_6{O}_{15}$ compound
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