Observation of Jonscher law in ac hopping conduction of the electron-doped nanoporous crystal 12CaO·7Al2O3 in a THz frequency range
Physical Review B - Condensed Matter and Materials Physics 70 巻 19 号
193104-1-193104-4 頁
2004-11-15 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Observation of Jonscher law in ac hopping conduction of the electron-doped nanoporous crystal 12CaO·7Al2O3 in a THz frequency range
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| 作成者 |
Harimochi Hiroyuki
Ishizaka Masahiro
Yamanishi Masamichi
Matsuishi Satoshi
Hosono Hideo
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| 収録物名 |
Physical Review B - Condensed Matter and Materials Physics
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| 巻 | 70 |
| 号 | 19 |
| 開始ページ | 193104-1 |
| 終了ページ | 193104-4 |
| 抄録 |
We have performed terahertz time-domain spectroscopy of carrier-doped nanoporous crystal 12CaO·7Al2O3 showing the Mott variable range hopping at room temperature. The real part of the dielectric constant clearly demonstrates the nature of localized carriers. The frequency dependence of both the real and imaginary parts of the dielectric constant can be simply explained by assuming two contributions: a dielectric response by the parent compound with no carriers and an ac hopping conduction with the Jonscher law generally reported up to GHz range. The possible obedience to the Jonscher law in the THz range suggests a relaxation time of the hopping carriers much faster than 1 ps in the carrier-doped 12CaO·7Al2O3.
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 2004-11-15 |
| 権利情報 |
Copyright (c) 2006 The American Physical Society.
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.70.193104
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.70.193104
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