Simultaneous Structural, Magnetic, and Electronic Transitions in La1−xCaxMnO3 with x=0.25 and 0.50

The magnetic transitions in ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Ca}}_{x}\mathrm{Mn}{\mathrm{O}}_{3}$ ($x=0.25, 0.50$) were studied by synchrotron x-ray and neutron powder diffraction. For $x=0.25$ the large $\ensuremath{\Delta}V=0.13%$ at ${T}_{C}$ is due to the simultaneous insulator-to-metal... View More