Dielectric properties of Sb1−xBixSI crystals

Ishikawa, Kenji; Shikata, Yoshiaki; Toyoda, K.

doi:10.1002/pssa.2210250268

Cited by 32 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In particular Ishikawa et al6 reported that the maximum of dielectric constant decreases with x can understand the above result by assuming that first order transition occur for x < 0.17 and b 2 /c decreases when x increases up to 0.17.…”

mentioning

confidence: 87%

Pyroelectric Effect and Ferroelectric Phase Transition in BixSb1-xSI

Chaves¹,

Amaral²,

Ziółkiewicz

et al. 1981

Recent Developments in Condensed Matter Physics

View full text Add to dashboard Cite

The measurements of pyroelectric current in needle shaped crystals of Bi Sb l SI (x = 0; 0.08; 0.17; 0.25; 0.50) were carried out byx -x measuring the potential difference across a short-circuiting resistance, while heating the samples at uniform rates. Critical temperature T follows a rapid linear decrease when x increases c up to 0.50, with a slope of 36 K per 0.10 Bi concentration.Critical exponent S of polarization, deduced from measurements of pyroelectric current, were obtained by using a T -independant c method and generally these values seem consistent with a mean field theory. It is found that a tricritical point, where the phase transition changes from first to second order, occur at a value of x around 0.17. The appearance of a pyroelectric current above T , for those crystals which undergo a second order phase transition, c can be explained by existence of an internal bias field. 43 J. T. Devreese et al. (eds.), Recent Developments in Condensed Matter Physics © Plenum Press, New York 1981 44 M. RENATA CHAVES ET AL.

show abstract

mentioning

confidence: 87%

Pyroelectric Effect and Ferroelectric Phase Transition in BixSb1-xSI

Chaves¹,

Amaral²,

Ziółkiewicz

et al. 1981

Recent Developments in Condensed Matter Physics

View full text Add to dashboard Cite

show abstract

“…They are influenced by light, leading to photoconductivity, photoferroelecticity, etc. Solid solutions of various combinations SbSISbSeI [6][7][8], SbSI-SbSBr [9,10], BiSI-SbSI [11][12][13] have been most intensively studied because they have the Curie temperatures depending on mixture composition. For example, the solid solutions SbSe x S 1-x I have the Curie temperature T C = 0-293 K, when x varies from 1 to 0.…”

Section: Introductionmentioning

confidence: 99%

Origin of soft mode in SbSexS1–xI crystals

Audzijonis¹,

Žigas²,

Siroic³

et al. 2004

Physica B: Condensed Matter

View full text Add to dashboard Cite

Tricritical point induced by atomic substitution in BixSb1–xSI

Teng

Massot

Chaves

et al. 1981

Phys. Stat. Sol. (a)

View full text Add to dashboard Cite

The pyroelectric current is measured as a function of temperature for a series of BixSb1–xSI mixed crystals. The spontaneous polarization Ps and its derivative λ with respect to temperature are deduced. In order to determine the order of transition for each Bi concentration x, Ps and also the product (2λPs) are analysed by means of Landau‐Devonshire's theory. The results confirm the existence of a tricritical point in the x, T plane in perfect agreement with previous Raman and dielectric constant data. A phenomenological model is proposed to account for the change of the order of transition with respect to concentration x. The idea of an “internal pressure” is advanced. Owing to the model, a second order transition can be induced from a first order one either by increasing the applied pressure π in the π, T plane or by reducing the “internal pressure” in the x, T plane. The model also account for, at least for the second order region, the variation of the Curie temperature either with pressure or with concentration x.

show abstract

Dielectric properties of Sb1−xBixSI crystals

Cited by 32 publications

References 2 publications

Pyroelectric Effect and Ferroelectric Phase Transition in BixSb1-xSI

Pyroelectric Effect and Ferroelectric Phase Transition in BixSb1-xSI

Origin of soft mode in SbSexS1–xI crystals

Tricritical point induced by atomic substitution in BixSb1–xSI

Contact Info

Product

Resources

About