Spin-dependent thermo-galvanic effects: experiment

自旋相关的热电效应：实验

• 批准号: 198261808
• 负责人: Professor Dr. Sebastian Gönnenwein
• 金额: --
• 依托单位: Arbeitsgruppe Magnetische Materialien und Spintronik
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/198261808?language=en
• 关键词: Spin; dependent; thermo; galvanic; effects

It became clear only recently that the long-known thermoelectric phenomena need to be re-considered by including the spin degree of freedom. Moreover, it has been recognized that caloric effects in spin transport modify thermal transport, magneto-resistance and possibly even magnetic states. Therefore, their investigation, understanding, and exploitation is of crucial importance, both from a fundamental point of view and given the fact that spin based devices will be used for information processing. The present proposal aims at the study of spin caloric transport phenomena in in ferromagnetic thin films as well as across interfaces in multilayer devices, which are in the heart of Priority Programme 1538. This includes the fabrication of epitaxial magnetic films and heterostructures tailored to the needs of spin caloric transport experiments, the study of the magnetization orientation-dependent Seebeck effect (magneto-Seebeck tensor), investigations of the Mott relations and of the anomalous Nernst effect, and the quantitative investigation of spin currents induced by temperature gradients. A particular long-term goal consists in the measurement of the magneto-heat conductivity tensor or the magneto-Peltier effect tensor and its relation to crystalline symmetry.

直到最近才明显，需要通过包括自由度的自由度来重新考虑长期以来的热电现象。此外，人们已经认识到，自旋传输中的热量效应可修饰热传输，耐磁性甚至可能的磁状态。因此，从基本的角度来看，他们的调查，理解和剥削至关重要，并且鉴于将基于旋转的设备用于信息处理的事实。 The present proposal aims at the study of spin caloric transport phenomena in in ferromagnetic thin films as well as across interfaces in multilayer devices, which are in the heart of Priority Programme 1538. This includes the fabrication of epitaxial magnetic films and heterostructures tailored to the needs of spin caloric transport experiments, the study of the magnetization orientation-dependent Seebeck effect (magneto-Seebeck张量），对莫特关系和异常效应的研究，以及温度梯度引起的自旋电流的定量研究。一个特定的长期目标包括测量磁加热电量张量或磁铁效应张量及其与晶体对称性的关系。

项目成果

Note: Derivative divide, a method for the analysis of broadband ferromagnetic resonance in the frequency domain.

• DOI: 10.1063/1.5045135
• 发表时间: 2017-05
• 期刊: The Review of scientific instruments
• 作者: H. Maier-Flaig;S. Goennenwein;R. Ohshima;M. Shiraishi;R. Gross;H. Huebl;M. Weiler

Tunable magnon-photon coupling in a compensating ferrimagnet—from weak to strong coupling

• DOI: 10.1063/1.4979409
• 发表时间: 2017-01
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: H. Maier-Flaig;M. Harder;S. Klingler;Z. Qiu;E. Saitoh;M. Weiler;S. Geprags;R. Gross;S. Goennenwein;H. Huebl

Evolution of the Spin Hall Magnetoresistance in Cr$_2$O$_3$/Pt bilayers close to the N\'eel temperature

• DOI: 10.1063/1.5019934
• 发表时间: 2017-12
• 期刊: arXiv: Mesoscale and Nanoscale Physics
• 作者: R. Schlitz;T. Kosub;Andy Thomas;Savio Fabretti;K. Nielsch;D. Makarov;S. Goennenwein

All Electrical Access to Topological Transport Features in Mn1.8PtSn Films.

• DOI: 10.1021/acs.nanolett.8b05042
• 发表时间: 2018-12
• 期刊: Nano letters
• 影响因子: 10.8
• 作者: R. Schlitz;P. Swekis;A. Markou;H. Reichlová;M. Lammel;J. Gayles;Andy Thomas;K. Nielsch;C. Felser;S. Goennenwein

Spin-Torque Excitation of Perpendicular Standing Spin Waves in Coupled YIG/Co Heterostructures.

• DOI: 10.1103/physrevlett.120.127201
• 发表时间: 2018-03-23
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: Klingler S;Amin V;Geprägs S;Ganzhorn K;Maier-Flaig H;Althammer M;Huebl H;Gross R;McMichael RD;Stiles MD;Goennenwein STB;Weiler M
• 通讯作者: Weiler M