SOFT-MODES IN DISPLACIVE TRANSITIONS

[1] Anderson P. W., 1958, P ALLUNION C PHYSICS, P290

[2] STUDY OF ALPHA-BETA QUARTZ PHASE TRANSFORMATION BY INELASTIC NEUTRON SCATTERING [J]. PHYSICAL REVIEW B, 1970, 1 (01): : 342 - &

[3] BALLANTYNE JM, 1964, PHYS REV, V136, P429

[4] TRANSVERSE + LONGITUDINAL OPTIC MODE STUDY IN MGF2 + ZNF2 [J]. PHYSICAL REVIEW, 1964, 136 (5A): : 1290 - +

[5] SECOND-ORDER PHASE TRANSITIONS CHARACTERIZED BY A DEFORMATION OF UNIT CELL [J]. ANNALS OF PHYSICS, 1968, 47 (01) : 40 - &

[6] BORN M, 1954, DYNAMICAL THEORY CRY, pCH5

[7] BRILLOUIN-SCATTERING STUDY OF FERROELECTRIC TRANSITION IN KH2PO4 [J]. PHYSICAL REVIEW LETTERS, 1968, 21 (17) : 1263 - &

[8] CHAPELLE J, 1955, CR HEBD ACAD SCI, V240, P743

[9] CRYSTAL STABILITY AND THE THEORY OF FERROELECTRICITY [J]. PHYSICAL REVIEW LETTERS, 1959, 3 (09) : 412 - 414

[10] DIELECTRIC CONSTANTS AND LATTICE VIBRATIONS [J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1962, 23 (MAY) : 447 - &

[1] Anderson P. W., 1958, P ALLUNION C PHYSICS, P290

[2] STUDY OF ALPHA-BETA QUARTZ PHASE TRANSFORMATION BY INELASTIC NEUTRON SCATTERING [J]. PHYSICAL REVIEW B, 1970, 1 (01): : 342 - &

[3] BALLANTYNE JM, 1964, PHYS REV, V136, P429

[4] TRANSVERSE + LONGITUDINAL OPTIC MODE STUDY IN MGF2 + ZNF2 [J]. PHYSICAL REVIEW, 1964, 136 (5A): : 1290 - +

[5] SECOND-ORDER PHASE TRANSITIONS CHARACTERIZED BY A DEFORMATION OF UNIT CELL [J]. ANNALS OF PHYSICS, 1968, 47 (01) : 40 - &

[6] BORN M, 1954, DYNAMICAL THEORY CRY, pCH5

[7] BRILLOUIN-SCATTERING STUDY OF FERROELECTRIC TRANSITION IN KH2PO4 [J]. PHYSICAL REVIEW LETTERS, 1968, 21 (17) : 1263 - &

[8] CHAPELLE J, 1955, CR HEBD ACAD SCI, V240, P743

[9] CRYSTAL STABILITY AND THE THEORY OF FERROELECTRICITY [J]. PHYSICAL REVIEW LETTERS, 1959, 3 (09) : 412 - 414

[10] DIELECTRIC CONSTANTS AND LATTICE VIBRATIONS [J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1962, 23 (MAY) : 447 - &