Resistance Measurement of Nano-order Thickness Surface Layer of YBa2Cu3O7-y Crystal

YBa2Cu3O7-y晶体纳米级厚度表层电阻测量

• 批准号: 23651115
• 负责人: SUN Yong
• 金额: $ 2.58万
• 依托单位: Kyushu Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23651115/
• 关键词: 表面超電導; 新型超電導材料; 極表面抵抗; 電気計測; 表面ガス吸着; 表面反応; 弾性表面波; 圧電ポテンシャル; バルク超電導体

A surface acoustic wave technique was used to measure the surface resistance of YBa2Cu3O7-ycrystal sample. The coupling of the surface acoustic wave to carriers in the crystal was through an electrostatic potential pulse propagating along the surface of the sample. The potential pulse was screened out from the sample due to an electrostatic induction effect. Penetration depth of the potential pulse into the sample was below 1 nm from the surface at room temperature. There were different temperature dependences of the surface resistance on warming and cooling measurements. Also, the surface resistance depends on oxygen deficiency in the surface layer.

采用表面声波技术测量了yba2cu3o7晶体样品的表面电阻。表面声波与晶体中载流子的耦合是通过沿样品表面传播的静电势脉冲实现的。由于静电感应效应，电位脉冲从样品中被屏蔽掉了。在室温下，电位脉冲对样品的穿透深度小于1 nm。表面电阻对升温和降温测量的温度依赖性不同。此外，表面电阻取决于在表层缺氧。

项目成果

Sc3N内包C80フラーレンの電気特性評価

Sc3N内嵌C80富勒烯的电学性能评价

• 发表时间: 2012
• 作者: 桐本賢太;高瀬 剛;境野真道;孫 勇
• 通讯作者: 孫 勇

表面移動電界を用いた非接触電気特性評価

利用表面移动电场进行非接触式电性能评估

• 发表时间: 2012
• 期刊: セラミックス
• 作者: Tsuyoshi Takase;Masamichi Sakaino;Kenta Kirimoto and Yong Sun;鯉沼陸央,元田龍一,松本泰道;鯉沼陸央,元田龍一,松本泰道;孫勇
• 通讯作者: 孫勇

Electrical Properties of Microcrystalline Sc3N@C80 Fullerene

微晶Sc3N@C80富勒烯的电性能

• DOI: 10.1007/s00339-012-7449-6
• 发表时间: 2012
• 期刊: Applied Physics A
• 作者: Tsuyoshi Takase;Masamichi Sakaino;Kenta Kirimoto and Yong Sun
• 通讯作者: Kenta Kirimoto and Yong Sun

Preparation and Characterization of Zn1-xBixO Films

Zn1-xBixO 薄膜的制备和表征

• 发表时间: 2012
• 期刊: Jasco Report
• 作者: M. Yamamoto;M. Abe;and Y. Sun
• 通讯作者: and Y. Sun

Si基板の内部摩擦測定

硅基片内耗测量

• 发表时间: 2011
• 作者: 立石 龍;竹下寛紀;孫 勇
• 通讯作者: 孫 勇