| Project/Area Number |
18002008
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| Research Category |
Grant-in-Aid for Specially Promoted Research
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
Mathematics and Physics
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| Research Institution | Niigata University |
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Principal Investigator |
GOTO Terutaka 新潟大学, 自然科学系, 教授 (60134053)
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| Co-Investigator(Kenkyū-buntansha) |
NEMOTO Yuichi 新潟大学, 自然科学系, 准教授 (10303174)
KITAZAWA Hideaki 物質・材料研究機構, 量子ビームセンター, グループリーダー (00195257)
SUZUKI Hiroyuki 物質・材料研究機構, 量子ビームセンター, 主幹研究員 (60354370)
KANETA Hiroshi 新潟大学, 研究推進機構超域学術院, 教授 (30418131)
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| Co-Investigator(Renkei-kenkyūsha) |
YANAGISAWA Tatsuya 北海道大学, 大学院・理学研究院, 准教授 (10456353)
IYETOMI Hiroshi 新潟大学, 自然科学系, 教授 (20168090)
ONO Yoshiaki 新潟大学, 自然科学系, 教授 (40221832)
TAKEDA Naoya 新潟大学, 自然科学系, 教授 (80242171)
TSURUTA Kenji 岡山大学, 自然科学研究科, 教授 (00304329)
SAKAI Osamu 物質・材料研究機構, 量子ビームセンター, 特別研究員 (60005957)
AKATSU Mitsuhiro 新潟大学, 自然科学系, 特任助教 (10431876)
ISHII Isamu 広島大学, 先端物質科学研究科, 任師 (20444713)
MITSUMOTO Keisuke 新潟大学, 自然科学系, 特任助教 (50515567)
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| Project Period (FY) |
2006 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥284,440,000 (Direct Cost: ¥218,800,000、Indirect Cost: ¥65,640,000)
Fiscal Year 2010: ¥50,440,000 (Direct Cost: ¥38,800,000、Indirect Cost: ¥11,640,000)
Fiscal Year 2009: ¥50,440,000 (Direct Cost: ¥38,800,000、Indirect Cost: ¥11,640,000)
Fiscal Year 2008: ¥50,440,000 (Direct Cost: ¥38,800,000、Indirect Cost: ¥11,640,000)
Fiscal Year 2007: ¥66,560,000 (Direct Cost: ¥51,200,000、Indirect Cost: ¥15,360,000)
Fiscal Year 2006: ¥66,560,000 (Direct Cost: ¥51,200,000、Indirect Cost: ¥15,360,000)
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| Keywords | 電気四極子 / 超音波 / 強相関量子相 / 希土類化合物 / カゴ状化合物 / ラットリング / シリコン / 原子空孔 |
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| Research Abstract |
The ultrasonic strains have specified symmetries and couple to the electric quadrupoles of the electronic and ionic quantum states. The ultrasonic measurements of the elastic constants and attenuation coefficients, therefore, may determine the quadrupole susceptibility. In the present projects, using low-temperature ultrasonic phase difference measurement apparatus with a highly velocity resolution, we have carried out a study of non-Kramers doublet of localized 4f-electron in rare-earth compounds, rattling of local oscillator in clathrate compounds, vacancy orbital in boron-doped silicon crystal in pursuing strongly correlated quantum phases associated with charge fluctuation.
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