Dzyaloshinsky-Moriya interaction in vesignieite: A route to freezing in a quantum kagome antiferromagnet

A. Zorko, F. Bert, A. Ozarowski +4

We report an electron spin resonance investigation of the geometrically frustrated spin-1/2 kagome antiferromagnet vesignieite, BaCu${}_3$V${}_2$O${}_8$(OH)${}_2$. Analysis of the line wid…