Exchange Striction and Heat Conduction in Ca$_{1-y}$Sr$_y$MnO$_3$ ($0\leq y\leq 0.5$)*

CaMnO$_3$, a G-type antiferromagnet with orthorhombic structure, exhibits a substantial enhancement of its thermal conductivity$^{a,b}$ ($\kappa$) for $T

*This material is based upon work supported by the National Science Foundation under grants DMR-0072276 (Univ. Miami) and DMR-9982834 (Montana State Univ.).

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2006.MAR.U20.3