. Kittel, Introduction à la physique de l'état solide, 7 ème édition, 2005.

E. Lines, A. Glass-fukuda, I. Yasuda, M. Vlasse, C. Parent et al., On the Piezoelectric Effect of Bone 10 (1957) 1158 Theory of tetragonal twin structures in ferroelectric perovskites with first order phase transition A General Survey of Quartz and Quartz-like Materials: Packing Distorsions, Temperature and Pressure Effects Neutron and X- Ray Structure Refinement between 15 and 1073K of Piezoelectric Gallium Arsenate GaAsO 4 : Temperature and pressure Behavior Compared with Other ?-Quartz Materials History of Ferroelectrics, Principles and Applications of Ferroelectrics and Related Materials The Structures of the Na 3 Ln(XO 4 ) 2 Phases(Ln = Rare Earth,) S. C. Abrahams, " Structure Relationship to Dielectric, Elastic and Chiral Properties Ceramics and Civilization, pp.318-50, 1977.

). R. Cristallogr, G. M. Nelmes, J. E. Mayer, J. C. Tiballs, . E. Slater-)-g et al., The crystal structure of tetragonal KH 2 PO 4 and KD 2 PO 4 as a function of temperature Solid State Physics Theory of the Transition in KH 2 PO 4 A neutron Diffraction study of Potassium Dihydrogen Phosphate, 13) Y. Katagi Theory of the transition in KH 2 PO 4 Proc.Roy.Soc.(London) A220 (1953) 397. (15) B. C. Frazer and R. Pepinsky, " X-ray Analysis of the Ferroelectric Transition in KH 2 PO 4, pp.437-59, 1941.

P. S. Percy, S. Endo, T. Chino, S. Tsuboiand, K. Koto et al., Effect of deuteration on the coupled modes in KH 2 PO 4 Pressure-induced transition of the hydrogen bond in the ferroelectric compounds KH 2 PO 4 and KD 2 PO 4, Acta Cryst. Phys. Rev. Nature Acta Cryst, vol.6, issue.45218, pp.273-289, 1953.

W. Hewat, J. Lasave, S. Koval, N. S. Dalal, R. L. Migoni et al., Location of Hydrogen Atoms in ADP by Neutron Powder Profile Refinement, Nature, vol.7, issue.5428, pp.90-110, 1973.
DOI : 10.1038/246090a0

). I. Tordjman, R. Masse, J. C. Guitel, P. Delarue, C. Lecomte et al., Utilisation de la méthode de génération du second harmonique pour la détection et l'étude de matériaux ferro-et antiferroélectrique » Izv New process of preparation, X-ray characterisation, structure and vibrational studies of a solid solution LiTiOAs 1?x P x O 4 (0 x 1) Thermal expansion of NaTi 2 (PO 4 ) 3 studied by rietveld method from X-ray diffraction data A Phosphoniobate with an Intersecting Tunnel Structure Related to Pyrochlore: Rb 3 Nb 5 P 2 O 19 Influence of d orbitals on the nonlinear optical response of transparent transition-metal oxides Crystal Structure and Vibrational properties of Rb 2 MgWO 2 (PO 4 ) 2 Possible Species of " Ferroelastic " Crystals and of Simultaneously Ferroelectric and Ferroelastic Crystals Ferroealstic behavior of the monoclinic-toorthorhombique phase transition of MP 5 O 14 (M = La-Tb) Structural Study of Ferroelastic TlH 2 PO 4 ?-Pb 3 (PO 4 ) 2 ? A pure Ferroelastic Reinvestigation of the ferroelastic phase transition of lead phosphate Pb 3 (PO 4 ) 2 Renormalization of the phase transition in lead phosphate, Pb 3 (PO 4 ) 2 , by high pressure structure Local and long-range order in ferrolastic lead phosphate at high pressure, Structure cristalline du monophosphate KTiPO 5 Evolution towards centrosymmetry of the nonlinear-optical material RbTiOPO 4 in the temperature range 293-973K: Alkaline displacement and titanyl deformations) 26. (28) M.E. Lines B11 (1975) 1152. (32)2004) 1 and references herein. (37) Se-Young Jeong Definition and geometrical consideration of the domain walls of Pb 3 (PO 4 ) 2 ferroelastic crystals Ferroelastic phases in Pb 3 (PO 4 ) 2 -Pb 3 (AsO 4 ) 2 Structural study of the intermediate phase of the ferroelastic Pb 3 (PO 4 ) 2 crystal Structure of Ferroelastic Domain and Thermoelastic Effect in Lead Phosphate Single Crystal, pp.5287-5311, 1969.

I. Figure, Transition de phase de NbPO 5 ?. Les structures représentées en 1 et 3 sont symétriques l'une de l'autre par rapport à un plan parallèle à l

B. Goodenough, H. Y. Hong, and J. A. Kafalas, Fast Na+-ion transport in skeleton structures, Materials Research Bulletin, vol.11, issue.2, p.11, 1976.
DOI : 10.1016/0025-5408(76)90077-5

P. Boilot, J. P. Salanié, G. Desplanches, and D. L. Potier, Phase transformation in Na 1+x Si x Zr 2 P 3-x O 12 compounds, Mat. Res. Bull, pp.14-1469, 1979.

S. Wallez, J. P. Launay, M. Soutron, E. Quarton, and . Suart, Beta-Zirconium Oxide Monophosphate:?? Structural Keys for an Ultralow Expansion Material, Chemistry of Materials, vol.15, issue.20, p.15, 2003.
DOI : 10.1021/cm031058q

S. Wallez, M. Launay, N. Quarton, J. L. Dacheux, and . Soubeyroux, Why does uranium oxide phosphate contract on heating?, Journal of Solid State Chemistry, vol.177, issue.10, pp.177-3575, 2004.
DOI : 10.1016/j.jssc.2004.06.014

URL : https://hal.archives-ouvertes.fr/in2p3-00025662

G. Launay, M. Wallez, and . Quarton, Th 4 (PO 4 ) 4 P 2 O 7 , an Original Ultralow Expansion Material, Chem.Mater, p.13, 2001.

I. Pet-'kov and A. I. Orlova, Crystal-Chemical Approach to Predicting the Thermal Expansion of Compounds in the NZP family, Inorg Mater, vol.10, p.1013, 2003.

E. Lenain, H. A. Mckinstry, J. Alamo, D. K. Agrawal, M. Li et al., Structural model for thermal expansion in MZr 2 P 3 O 1 2, Thermal Expansion of NaTi 2 (PO 4 ) 3 Studies by Rietveld Method from X-ray Diffraction Data, pp.24-611, 1987.

R. Alami, J. L. Brochu, P. Soubeyroux, G. L. Gravereau, P. Flem et al., Structure and Thermal Expansion of LiGe 2 (PO 4 ) 3, J. Solid State Chem, vol.185, p.90, 1991.

Y. Limaye, D. K. Agrawal, and H. A. Mckinstry, Synthesis and Thermal Expansion of MZr 4 P 6 O 24 (M = Mg, Ca, Sr, Ba), J. Am. Ceram, Soc, vol.10, p.32, 1987.

G. Amos, A. Yokochi, and A. W. Sleight, Phase Transition and Negative Thermal Expansion in, Tetragonal NbOPO J. Solid State Chem, vol.4, issue.303, p.141, 1998.

G. Amos and A. W. Sleight, Negative Thermal Expansion in Orthorhombic NbOPO 4, J. Solid State Chem, vol.160, issue.230, 2001.