Possible second-order phase transition of ferroelectric NaNO2 produced by strain

Kam, Kam-Shing; Henkel, John H.

doi:10.1016/0375-9601(78)90634-5

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…Among the earlier experimental studies on the ferroelectric sodium nitrite, Raman [10], ultrasonic [11], infrared reflectivity [12], resonant emission [13][14][15] and isotope shifts [16] have been reported in the literature. Some other theoretical studies are such as the calculation of spontaneous polarization vs. strain in NaNO 2 [17], critical fluctuations [18] and the mean-field theory of the incommensurate transition in NaNO 2 [19]. Recently, properties of confined sodium nitrite [20] and ferroelectric phase transitions in sodium nitrite nanocomposites [21] have studied experimentally.…”

Section: Introductionmentioning

confidence: 98%

Temperature Dependence of the Spontaneous Polarization Near the Ferroelectric-Paraelectric Transition in NaNO2

Sarikaya

Yurtseven²

2013

High Temperature Materials and Processes

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The paraelectric-ferroelectric transition in NaNO 2 is studied using the Levanyuk-Sannikov and the mean field models which we have developed here. From both models, the temperature dependence of the spontaneous polarization is derived and is fitted to the experimental data from the literature.Our results show that both mean field models are adequate to describe the observed behaviour of the spontaneous polarization close to the paraelectric-ferroelectric transition in NaNO 2 . The two models are compared in regard to the transition mechanism in this crystal.

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