1. At high temperatures, lead titanate adopts a cubic perovskite structure . 2. It is an optically transparent ceramic oxide with a distorted perovskite structure . 3. It is black in color and crystallizes in a distorted hexagonal perovskite structure . 4. The perovskite structure can be deduced based on powder x-ray diffraction measurements. 5. The cuprate superconductors adopt a perovskite structure . 6. There are a few crystal structures, notably the perovskite structure , which exhibit ferroelectric behavior. 7. The crystal structure of antiperovskite parallels the perovskite structure , with the exception of switching anion and cation positions. 8. At ambient pressures scandium trifluoride adopts the cubic crystal system, using the perovskite structure with one metal position vacant. 9. At depths greater than about 660 km, other minerals, including some with the perovskite structure , are stable. 10. At 760 K, the material undergoes a second order phase transition to a tetragonal perovskite structure which exhibits ferroelectricity.
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