Electric field-temperature phase diagram of Zr0.98sn0.02TiO4

The electric field-temperature phase diagram of Zr0.98sn0.02TiO4 is presented and examined using X-ray diffraction methods. The existence of commensurate phases corresponding to the rational values 1/21 and 1/23 for the incommensurate deviation factor were confirmed through accurate satellite position measurements. Results are discussed qualitatively in the light of Aubry's and Landau's 'devil's-staircase' approaches.