Manifestation of a Coexistence of the Long-Periodic Phase with the Incommensurate Phase

Sveleba, S. A.; Polovinko, I. I.; Zhmurko, V. S.; Pankivskyi, Yu. I.

doi:10.12693/aphyspola.96.437

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“…The values of δ in the vicinities of T c and T i were used as defined points for calculation. Besides, the investigations of δ(∆n) [45] were taken into account. The temperature points of wave vector localization with the accuracy of the second digit after comma agree with the calculated from structural investigations values of wave vector localizations on the commensurate values of higher order [44].…”

Section: The Transition Between Metastable Statesmentioning

confidence: 99%

Phase Transitions in [N(CH₃)₄]₂ZnCl₄and [N(CH₃)₄]₂CuCl₄Crystals Related with the Incommensurate Modulation Existence

et al. 2008

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The continuous phase transitions are observed in the crystals with incommensurate phase. They are transitions of parent-incommensurate phases (Ti); transitions between metastable states; incommensurate-commensurate phases (T c ). It was set that phase transition between parent and incommensurate phase is a continuous second-order phase transition with a critical index β = 0.5. The transition between metastable states is a continuous phase transition through the intermediate temperature region -incommensurate phase. The wave vector changes with the temperature here and wave vector q * = q 1 − q 2 appears, where q 1 , q 2 denote commensurate values of incommensurability wave vector of neighboring metastable states. It was shown that the phase transition between incommensurate and commensurate phases is a continuous phase transition.

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Section: The Transition Between Metastable Statesmentioning

confidence: 99%

Phase Transitions in [N(CH₃)₄]₂ZnCl₄and [N(CH₃)₄]₂CuCl₄Crystals Related with the Incommensurate Modulation Existence

et al. 2008

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Manifestation of a Coexistence of the Long-Periodic Phase with the Incommensurate Phase

Cited by 1 publication

References 8 publications

Phase Transitions in [N(CH₃)₄]₂ZnCl₄and [N(CH₃)₄]₂CuCl₄Crystals Related with the Incommensurate Modulation Existence

Phase Transitions in [N(CH₃)₄]₂ZnCl₄and [N(CH₃)₄]₂CuCl₄Crystals Related with the Incommensurate Modulation Existence

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Manifestation of a Coexistence of the Long-Periodic Phase with the Incommensurate Phase

Cited by 1 publication

References 8 publications

Phase Transitions in [N(CH3)4]2ZnCl4and [N(CH3)4]2CuCl4Crystals Related with the Incommensurate Modulation Existence

Phase Transitions in [N(CH3)4]2ZnCl4and [N(CH3)4]2CuCl4Crystals Related with the Incommensurate Modulation Existence

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Phase Transitions in [N(CH₃)₄]₂ZnCl₄and [N(CH₃)₄]₂CuCl₄Crystals Related with the Incommensurate Modulation Existence

Phase Transitions in [N(CH₃)₄]₂ZnCl₄and [N(CH₃)₄]₂CuCl₄Crystals Related with the Incommensurate Modulation Existence