A high resolution neutron diffraction study of the perovskite LaTiO3

LaTiO3 shows a transition from temperature-independent paramagnetism to antiferromagnetism at 125 K. The temperature coefficient of the electrical resistivity changes at the same temperature from positive (i.e. metal-like) to negative (i.e. semiconductor-like). The crystal structure of LaTiO3 was investigated at five temperatures from 298 K to 10 K by time-of-flight neutron diffraction to look for any structural origin to the above phenomena. …