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arXiv 1005.2087cond-mat.mes-hall
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铁磁多阱自旋振荡器的设想

Proposal for a ferromagnetic multiwell spin oscillator

Christian Ertler, Walter Pötz, Jaroslav Fabian

摘要:

从理论上研究了由稀磁半导体构成的铁磁量子阱组成的多阱异质结构中输运和磁性的高度非线性耦合。磁阱中共振隧穿和载流子介导的铁磁性的相互作用引起非常鲁棒的、自持的电流和磁化振荡。在稳定偏置电压的大窗口上,集电极电流的自旋极化在正值和负值之间振荡,实现自旋振荡器器件。

英文摘要:

The highly nonlinear coupling of transport and magnetic properties in a multiwell heterostructure, which comprises ferromagnetic quantum wells made of diluted magnetic semiconductors, is theoretically investigated. The interplay of resonant tunneling and carrier-mediated ferromagnetism in the magnetic wells induces very robust, self-sustained current and magnetization oscillations. Over a large window of steady bias voltages the spin polarization of the collector current is oscillating between positive and negative values, realizing a spin oscillator device.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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