ESR study of ferroic crystals under the severe conditions like phase transition and domain switching by means of the electromagnetic horn type ESR apparatus
| Project/Area Number |
20540318
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | Oita University |
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Principal Investigator |
KOBAYASHI Tadashi Oita University, 工学部, 名誉教授 (30100936)
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| Co-Investigator(Kenkyū-buntansha) |
UJIIE Seiji 大分大学, 工学部, 教授 (40185004)
OHGA Yasushi 大分大学, 工学部, 准教授 (60252508)
NAGAYA Tomoyuki 大分大学, 工学部, 教授 (00228058)
MACHIDA Mitsuo 九州大学, 大学院・理学研究院, 准教授 (40201769)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2010: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Keywords | 誘電体 / スピンエレクトロニクス / 電磁ホーン型ESR / 電子スピン共鳴(ESR EPR) / フェロイック結晶 / ESR用2軸ゴニオメーター / ESR用1軸性応力印加装置 / 極端条件下でのESR計測 / キュー温度 / 温度可変ESR計測 / 強誘電体 / 誘電ロス / 巨大試料 / 極端条件下及び極端試料のESR計測 / ESR用ゴニオメータ / 温可変ESR / 電磁ホーン / リラクサー / 温度可変 |
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| Research Abstract |
Instead of using cavity resonator, a newly-designed electromagnetic horn type ESR spectrometer, adopting the electromagnetic horn antennas as a sample cell, was constructed. The merit of horn type ESR is to provide an experimental flexibility in comparison with the closed and small space in past cavity resonator, and Q value free. We have applied it to extreme state specimens such as ferroelectric and ferroelastic crystal, when the ferroic phase transition or domain switching phenomenon occurs.
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Report
(4 results)
Research Products
(26 results)
