Magnetism Control by Doping in LaAlO₃/SrTiO₃ Heterointerfaces

Abstract

Magnetic two-dimensional electron gases at the oxide interfaces are always one of the key issues in spintronics, giving rise to intriguing magnetotransport properties. However, reports about magnetic two-dimensional electron gases remain elusive. Here, we obtain the magnetic order of LaAlO/SrTiO systems by introducing magnetic dopants at the La site. The transport properties with a characteristic of metallic behavior at the interfaces are investigated. More significantly, magnetic-doped samples exhibit obvious magnetic hysteresis loops and the mobility is enhanced. Meanwhile, the photoresponsive experiments are realized by irradiating all samples with a 360 nm light. Compared to magnetism, the effects of dopants on photoresponsive and relaxation properties are negligible because the behavior originates from SrTiO substrates. This work paves a way for revealing and better controlling the magnetic properties of oxide heterointerfaces.

Sunlight Control of Interfacial Magnetism for Solar Driven Spintronic Applications

“…For centuries, researchers have been devoting their lifetime efforts to making electronics cheaper, more compact, and more energy-efficient. [1][2][3][4][5][6][7][8][9] A good example is that spintronics applications are the minimization of electronic devices. [1][2][3]10] Here, spins, instead of electrons, serve as information storage media, as well as logical and information processing devices.…”

“…For centuries, researchers have been devoting their lifetime efforts to making electronics cheaper, more compact, and more energy‐efficient . A good example is that spintronics applications are the minimization of electronic devices .…”

Tuning Magnetism and Photocurrent in Mn-Doped Organic–Inorganic Perovskites

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Enhancing Sunlight Control of Interfacial Magnetism by Introducing the ZnO Layer for Electron Harvesting

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