Oxide superconducting spintronics: the age of the interface

氧化物超导自旋电子学：界面时代

• 批准号: 2104704
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2104704
• 关键词: Oxide; superconducting; spintronics; age; interface

A few compounds show intrinsic triplet (p-wave) superconductivity, such as Sr2RuO4 (SRO) [Nature 372, 532 (1994)]. The triplet pairing in SRO is even-frequency and is conceptually different to the odd-frequency triplet pairing induced in ferromagnets on s-wave superconductors. However, there are theoretical predictions that alternative pairing states can be induced at surfaces, which raise the prospect of coupling different superconducting states via interface-engineered proximity effects. The aim of this PhD is to advance the understanding of superconducting oxide interfaces and proximity effects in order to investigate novel superconductivity and to apply it to control spin/charge conversion in the superconducting state. The research will involve atomic-controlled growth of oxide thin films and device fabrication as well as theory modelling.

一些化合物表现出固有的三重态（p 波）超导性，例如 Sr2RuO4 (SRO) [Nature 372, 532 (1994)]。 SRO 中的三重态配对是偶数频率，在概念上不同于 s 波超导体上的铁磁体中感应的奇数频率三重态配对。然而，有理论预测，可以在表面诱导替代配对态，这提高了通过界面工程邻近效应耦合不同超导态的前景。该博士学位的目的是增进对超导氧化物界面和邻近效应的理解，以研究新型超导性并将其应用于控制超导状态下的自旋/电荷转换。该研究将涉及氧化物薄膜的原子控制生长和器件制造以及理论建模。

项目成果

Superconducting vortices generated via spin-orbit coupling at superconductor/ferromagnet interfaces

通过超导体/铁磁体界面处的自旋轨道耦合产生的超导涡旋

• DOI: 10.1103/physrevb.100.220505
• 发表时间: 2019-12-23
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: L. O. Olthof;X. Montiel;J. Robinson;A. Buzdin
• 通讯作者: A. Buzdin

Tunable critical field in Rashba superconductor thin films

Rashba 超导薄膜中的可调谐临界场

• DOI: http://dx.10.1103/physrevb.103.l020504
• 发表时间: 2021
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Olde Olthof L

Observation of superconducting gap spectra of long-range proximity effect in Au / SrTiO 3 / SrRuO 3 / Sr 2 RuO 4 tunnel junctions

Au / SrTiO 3 / SrRuO 3 / Sr 2 RuO 4 隧道结长程邻近效应超导能隙光谱观察

• DOI: http://dx.10.1103/physrevb.100.024516
• 发表时间: 2019
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Anwar M

Superconducting phase transitions in hybrid superconducting systems with ferromagnets and spin-orbit coupling

铁磁体和自旋轨道耦合混合超导系统中的超导相变

• DOI: http://dx.10.17863/cam.90502
• 发表时间: 2022
• 作者: Olde Olthof L

Spin-transport in superconductors

超导体中的自旋输运

• DOI: 10.1063/1.5138905
• 发表时间: 2020-03-17
• 期刊: arXiv: Mesoscale and Nanoscale Physics
• 作者: K. Ohnishi;S. Komori;Guang Yang;K. Jeon;K. Jeon;L. O. Olthof;X. Montiel;M. Blamire;J. Robinson
• 通讯作者: J. Robinson