Experimental Study of Antiferroelectric Copper Formate Tetrahydrate and Its deuterium Substitute

Okada, Kenkichi; Sugie, H.

doi:10.1143/jpsj.25.1128

Cited by 42 publications

(6 citation statements)

References 10 publications

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“…The calculated sublattice polarization is P cal = ±8.1 µC/cm 2 which is rather close to the observed value of |P obs | = 6.0 µC/cm 2 about 230 K [19].…”

Section: X-ray Structure Analysissupporting

confidence: 84%

X-ray and Neutron Studies of Antiferroelectric Phase Transition in Cu(HCOO) 2 ·4H 2 O

et al. 2003

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X-ray diffraction and incoherent inelastic neutron scattering studies are performed to clarify the phase transition mechanism of Cu(HCOO) 2 ·4H 2 O. Contrary to the previous electrical study, we find no evidence of the existence of an intermediate ferrielectric phase. We determine the accurate antiferroelectric structure. It turns out that the atomic arrangement of the Cu(HCOO) 2 layers remains unchanged through the phase transition, while the antiferroelectric H 2 O layers take one of two disordered paraelectric arrangements alternately along the c-axis. We discuss that the rotation of the H 2 O molecules induces the structural correlation one-dimensionally along the antiferroelectric b-axis.

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“…The calculated sublattice polarization is P cal = ±8.1 µC/cm 2 which is rather close to the observed value of |P obs | = 6.0 µC/cm 2 about 230 K [19].…”

Section: X-ray Structure Analysissupporting

confidence: 84%

X-ray and Neutron Studies of Antiferroelectric Phase Transition in Cu(HCOO) 2 ·4H 2 O

et al. 2003

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“…They decoupled the correlations at an early stage, due to which some important interactions disappeared from their expressions. Our data agree with data of Okada et al [8][9][10] . The physical explanation to this effect is that in presence of electric field (d.c. bias) crystal behaves as clamped crystal.…”

Section: Resultssupporting

confidence: 93%

Effect of Electric Field on Dielectric Constant and Loss Tangent in ADP Crystal

2017

Chem Sci Trans

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A four sublattice pseudospin lattice coupled mode model modified with third and fourthorder phonon anharmonic interaction terms and external electric field terms has been considered for ADP crystal. Expressions for shift, width, renormalized antiferroelectric mode frequency, dielectric constant and loss tangent have been evaluated. Double-time thermal Green's function method has been used for derivation. Fitting the values of model parameters in expressions, the temperature dependences of antiferroelectric mode frequency dielectric constant and loss tangent have been calculated in presence of electric field. Theoretical results agree with experimental data by others.

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“…1a) [1]. Temperature dependence of dielectric constants shows a behavior of the first-order transition at about 235 K (Fig.…”

Section: Introductionmentioning

confidence: 90%

Ferroelectric metal organic framework (MOF)

Guo

Cai

Xiong

2010

Inorganic Chemistry Communications

105

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Experimental Study of Antiferroelectric Copper Formate Tetrahydrate and Its deuterium Substitute

Cited by 42 publications

References 10 publications

X-ray and Neutron Studies of Antiferroelectric Phase Transition in Cu(HCOO) 2 ·4H 2 O

X-ray and Neutron Studies of Antiferroelectric Phase Transition in Cu(HCOO) 2 ·4H 2 O

Effect of Electric Field on Dielectric Constant and Loss Tangent in ADP Crystal

Ferroelectric metal organic framework (MOF)

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