WEKO3
インデックスリンク
アイテム
Quantum Paraelectric States in SrTiO3 and KTaO3: Barrett Model, Vendik Model, and Quantum Criticality
http://hdl.handle.net/2297/45341
http://hdl.handle.net/2297/45341e899c302-40f4-47d6-8e3f-ba04daeabcfe
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SC-PR-FUJISHITA-H-074703.pdf (1.8 MB)
|
|
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-10-03 | |||||
| タイトル | ||||||
| タイトル | Quantum Paraelectric States in SrTiO3 and KTaO3: Barrett Model, Vendik Model, and Quantum Criticality | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| その他のタイトル | ||||||
| 値 | Quantum Paraelectric States in SrTiO<sub>3</sub> and KTaO<sub>3</sub>: Barrett Model, Vendik Model, and Quantum Criticality | |||||
| 著者 |
Fujishita, Hideshi
× Fujishita, Hideshi× Kitazawa, Shou× Saito, Masahiro× Ishisaka, Ryosuke× Okamoto, Hiroyuki× Yamaguchi, Toshihisa |
|||||
| 書誌情報 |
Journal of the Physical Society of Japan 巻 85, 号 7, p. 074703, 発行日 2016-07-15 |
|||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1347-4073 | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11728202 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.7566/JPSJ.85.074703 | |||||
| 出版者 | ||||||
| 出版者 | Physical Society of Japan = 日本物理学会 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The dielectric constants of the quantum paraelectrics SrTiO3 and KTaO3 are measured between 4 and 325 K. Their temperature dependences are analyzed on the basis of the Barrett and Vendik models. The former model deals with a ferroelectric optical mode coupled with other optical modes, whereas the latter deals with the mode coupled with acoustic modes. In addition, the latter contains a measure of the density of defects and inhomogeneity. The dielectric constants at low temperatures can be accurately described using Vendik’s formula; however, they cannot be accurately described using Barrett’s formula, even after the introduction of a measure of the density of defects and inhomogeneity. A critical quantum paraelectric region has been introduced recently between a classical region and a quantum paraelectric one. We point out that the critical region is where a low-temperature approximation is well realized for the model with the coupling between the ferroelectric and acoustic modes. | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Embargo Period 12 months, An ex post facto report is necessary | |||||
| 権利 | ||||||
| 権利情報 | Copyright ©2016 The Physical Society of Japan 日本物理学会 | 許可を得て登録 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| シリーズ | ||||||
| 関連名称 | 074703 | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.jps.or.jp/ | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://journals.jps.jp/ | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://journals.jps.jp/doi/abs/10.7566/JPSJ.85.074703 | |||||
