Bond disorder and spinon heat transport in the $S=\frac{1}{2}$ Heisenberg spin chain compound Sr${}_2$CuO${}_3$: from clean to dirty limits

A. Mohan, N. Sekhar Beesetty, N. Hlubek +4

We investigate the effect of disorder on the heat transport properties of the $S=\frac{1}{2}$ Heisenberg chain compound Sr${}_2$CuO${}_3$ upon chemically substituting Sr by increasing…