collective and individual spin phenomena in doped nanocrystals

Gerd Bacher

doi:10.1117/12.2596311

1 August 2021 collective and individual spin phenomena in doped nanocrystals

Gerd Bacher

Proceedings Volume 11805, Spintronics XIV; 118051M (2021) https://doi.org/10.1117/12.2596311
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Advances in chemical synthesis enable the design of nanocrystals with targeted architecture, functionalized by transition metal doping. As a consequence of pronounced exchange interactions between charge carriers and dopants, this class of materials combines optical, electronic and magnetic activity even up to room temperature. Ensemble doping leads to collective spin phenomena like optically and electrically triggered magnetization as well as spin fluctuations, probed down to the level of single quantum dots. We found strong anisotropy effects paving the path towards directed magnetic polaron formation. Incorporation of single magnetic impurities yield unique discoveries like huge zero-field exchange splittings, which allows probing the spin state of an individual atom, or digital magnetic doping in magic size nanocluster.

Conference Presentation

Citation Download Citation

Gerd Bacher "collective and individual spin phenomena in doped nanocrystals", Proc. SPIE 11805, Spintronics XIV, 118051M (1 August 2021); https://doi.org/10.1117/12.2596311

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