2014 Fiscal Year Final Research Report
Ultrasound studies for a tiny sample probed by the high-resolved measurement method
| Project/Area Number |
24540354
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Iwate University |
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Principal Investigator |
NAKANISHI Yoshiki 岩手大学, 工学(系)研究科(研究院), 准教授 (70322964)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 超音波測定 / 多重極限環境 / 弾性特性 / 混合価数状態 / 電荷密度波 / ヤーンテラー効果 / 非クラマース二重項 / 強相関系伝導物質 |
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| Outline of Final Research Achievements |
We have developed equipment for measuring ultrasound velocity and attenuation traveling in a solid for a case using a very tiny sample. It is important when one must do the measurement with a very small sample size less than 0.5 mm thick. What the features are that special transducers are designed for the small samples and they can generate waves ranging in frequency above 200 MHz. The newly developed system helps us improve the difficulties such as measurements with a small size sample, and ensures high performance in our measurements. By using the new equipment, the sound velocity and attenuation were measured in some systems such as PrTr2Al20 (Tr = V, Ti), SmNiC2 and so on, which the sample size is too small to perform the measurement in a conventional way.
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| Free Research Field |
物性物理
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