Development of angle dependent tunneling spectroscopy

角度相关隧道光谱的发展

• 批准号: 24654103
• 负责人: KASAHARA SHIGERU
• 金额: $ 2.41万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24654103/
• 关键词: 異方的超伝導; 低温物性; 強相関電子系; 超伝導対称性; 非従来型超伝導; 準粒子励起; エピタキシャル薄膜; 回転対称性の破れ

Tunneling spectrum under magnetic field and its in-plane angle dependence would offer a novel way to determine the superconducting gap symmetry in the unconventional superconductors. Development of high quality thin films and devices based on that are highly required. Conditions to make ultra-thin films of the parent compound of iron-based superconductors are established in this work. The gap symmetry of some iron-based superconductors having nodes is also investigated via quasi-particle excitation at low temperatures and their evolution for different scattering levels.

磁场作用下的超导谱及其面内角度依赖性将为确定非常规超导体中的超导能隙对称性提供一种新的途径。 高质量的薄膜和器件的发展是非常必要的。本工作建立了制备铁基超导体母体化合物超薄膜的条件。通过低温准粒子激发研究了具有节点的铁基超导体的差距对称性及其在不同散射能级下的演化。

项目成果

Angle Dependent Specific Heat Study of BaFe_2(As_<0.7>P_<0.3>)_2

BaFe_2(As_<0.7>P_<0.3>)_2 与角度相关的比热研究

• 发表时间: 2013
• 作者: Liam Malone;Yuta Mizukami;Philip Walmsley;S. Kasahara;T. Shibauchi;Y. Matsuda;Antony Carrington
• 通讯作者: Antony Carrington

Contrasts in the normal and superconducting properties of LiFeAs and LiFeP superconductors

LiFeAs和LiFeP超导体的普通和超导性能对比

• 发表时间: 2012
• 作者: S. Kasahara;K. Hashimoto;H. Ikeda;T. Terashima;Y. Matsuda and T. Shibauchi
• 通讯作者: Y. Matsuda and T. Shibauchi

Optical conductivity of clean-limit superconductor LiFeAs

洁净极限超导体LiFeAs的光导率

• 发表时间: 2014
• 作者: R.P.S.M. Lobo;A.V. Pronin;G. Chanda;J. Wosnitza;S. Kasahara;T. Shibauchi;Y. Matsuda
• 通讯作者: Y. Matsuda

The low temperature Fermi surface of IrTe_2 probed by quantum oscillations

量子振荡探测IrTe_2的低温费米面

• 发表时间: 2014
• 作者: Samuel Blake;Amalia Coldea;Matthew Watson;Arjun Narayanan;Alix McCollam;Shigeru Kasahara;Takuya Yamashita;Daiki Watanabe;Takasada Shibauchi;Yuji Matsuda;Robert Schoonmaker
• 通讯作者: Robert Schoonmaker

Influence of twin boundaries on superconducting gap nodes in FeSe single crystal studied by STM/STS

STM/STS研究FeSe单晶孪晶界对超导间隙节点的影响

• 发表时间: 2014
• 作者: T. Watashige;T. Hanaguri;Y. Kohsaka;K. Iwaya;Y. Fu;S. Kasahara;D. Watanabe;Y. Mizukami;T. Mikami;Y. Kawamoto;S. Kurata;T. Shibauchi;Y. Matsuda;A. Bohmer;T. Wolf;C. Meingast;H. v. Lohneysen
• 通讯作者: H. v. Lohneysen