Phase transitions, ferroelectric behavior and second-order nonlinear optics of a new mixed sodium dihydrogen phosphate–arsenate
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| Title: | Phase transitions, ferroelectric behavior and second-order nonlinear optics of a new mixed sodium dihydrogen phosphate–arsenate |
|---|---|
| Authors: | Ennaceur, Nasreddine1,2 nennaceu@ens-cachan.fr, Jarraya, Khaled2, Singh, Anu1, Ledoux-Rak, Isabelle1, Mhiri, Tahar2 |
| Source: | Journal of Physics & Chemistry of Solids. Mar2012, Vol. 73 Issue 3, p418-422. 5p. |
| Subjects: | Ferroelectricity, Phase transitions, Nonlinear optics, Sodium, Hydrogen, Phosphates, Arsenates |
| Abstract: | Abstract: Aiming at the development of new proton conducting solids, recent studies of the NaH2PO4·H2O–NaH2AsO4·H2O system have lead to the synthesis of a new compound NaH2(PO4)0.48(AsO4)0.52·H2O (NDAP). Calorimetric studies have confirmed the presence of four reversible phase transitions (abbreviated by PhT), at 257/270 (PhT, IV), 261/290 (PhT, III), 267/301 (PhT, II) and 317/317.5K (PhT, I) (for cooling/heating processes, respectively). It is shown that the III and IV phase transitions are of a first order type, with a “order-disorder and displacive” character, accompanied by specific dielectric anomalies. The behavior of the dielectric constant ε′ r and of tan δ shows that, at 272K, the (PhT, IV) could be ferroelectric–paraelectric. As for the (PhT, III) at 296K, it leads to a superionic–protonic phase; a jump in the conductivity is associated to this transition with an unusual high value of conductivity 1.07×10−4 Ω−1 cm−1 and a low activation energy 0.39eV (Kh. Jarraya et al.). Quandratic nonlinear (NLO) properties of NDAP powder was confirmed efficiency of the grown crystal by the Kurtz and Perry second harmonic generation (SHG) technique. [Copyright &y& Elsevier] |
| Copyright of Journal of Physics & Chemistry of Solids is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 70158869 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Phase transitions, ferroelectric behavior and second-order nonlinear optics of a new mixed sodium dihydrogen phosphate–arsenate – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ennaceur%2C+Nasreddine%22">Ennaceur, Nasreddine</searchLink><relatesTo>1,2</relatesTo><i> nennaceu@ens-cachan.fr</i><br /><searchLink fieldCode="AR" term="%22Jarraya%2C+Khaled%22">Jarraya, Khaled</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Singh%2C+Anu%22">Singh, Anu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ledoux-Rak%2C+Isabelle%22">Ledoux-Rak, Isabelle</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Mhiri%2C+Tahar%22">Mhiri, Tahar</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Physics+%26+Chemistry+of+Solids%22">Journal of Physics & Chemistry of Solids</searchLink>. Mar2012, Vol. 73 Issue 3, p418-422. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Ferroelectricity%22">Ferroelectricity</searchLink><br /><searchLink fieldCode="DE" term="%22Phase+transitions%22">Phase transitions</searchLink><br /><searchLink fieldCode="DE" term="%22Nonlinear+optics%22">Nonlinear optics</searchLink><br /><searchLink fieldCode="DE" term="%22Sodium%22">Sodium</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen%22">Hydrogen</searchLink><br /><searchLink fieldCode="DE" term="%22Phosphates%22">Phosphates</searchLink><br /><searchLink fieldCode="DE" term="%22Arsenates%22">Arsenates</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Aiming at the development of new proton conducting solids, recent studies of the NaH2PO4·H2O–NaH2AsO4·H2O system have lead to the synthesis of a new compound NaH2(PO4)0.48(AsO4)0.52·H2O (NDAP). Calorimetric studies have confirmed the presence of four reversible phase transitions (abbreviated by PhT), at 257/270 (PhT, IV), 261/290 (PhT, III), 267/301 (PhT, II) and 317/317.5K (PhT, I) (for cooling/heating processes, respectively). It is shown that the III and IV phase transitions are of a first order type, with a “order-disorder and displacive” character, accompanied by specific dielectric anomalies. The behavior of the dielectric constant ε′ r and of tan δ shows that, at 272K, the (PhT, IV) could be ferroelectric–paraelectric. As for the (PhT, III) at 296K, it leads to a superionic–protonic phase; a jump in the conductivity is associated to this transition with an unusual high value of conductivity 1.07×10−4 Ω−1 cm−1 and a low activation energy 0.39eV (Kh. Jarraya et al.). Quandratic nonlinear (NLO) properties of NDAP powder was confirmed efficiency of the grown crystal by the Kurtz and Perry second harmonic generation (SHG) technique. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Physics & Chemistry of Solids is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jpcs.2011.11.006 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 418 Subjects: – SubjectFull: Ferroelectricity Type: general – SubjectFull: Phase transitions Type: general – SubjectFull: Nonlinear optics Type: general – SubjectFull: Sodium Type: general – SubjectFull: Hydrogen Type: general – SubjectFull: Phosphates Type: general – SubjectFull: Arsenates Type: general Titles: – TitleFull: Phase transitions, ferroelectric behavior and second-order nonlinear optics of a new mixed sodium dihydrogen phosphate–arsenate Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ennaceur, Nasreddine – PersonEntity: Name: NameFull: Jarraya, Khaled – PersonEntity: Name: NameFull: Singh, Anu – PersonEntity: Name: NameFull: Ledoux-Rak, Isabelle – PersonEntity: Name: NameFull: Mhiri, Tahar IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2012 Type: published Y: 2012 Identifiers: – Type: issn-print Value: 00223697 Numbering: – Type: volume Value: 73 – Type: issue Value: 3 Titles: – TitleFull: Journal of Physics & Chemistry of Solids Type: main |
| ResultId | 1 |
