[HTML][HTML] Low-frequency noise behaviors of quasi-two-dimensional electron systems based on complex oxide heterostructures
We report the low-frequency noise behaviors in quasi-two-dimensional (quasi-2D) electron
systems based on complex oxide heterostructures. First, the surface 2D electron gas (2DEG)
on SrTiO 3 (STO) exhibits the 1/f α-type current power spectral density (PSD) with α∼ 1.39.
The non-unity exponent α indicates the discrepancy between the depth distributions of
electrons and oxygen vacancies in the STO substrate. Second, the amorphous LaAlO
3/KTaO 3 (LAO/KTO) interface, another quasi-2D electron system, shows Lorentzian …
systems based on complex oxide heterostructures. First, the surface 2D electron gas (2DEG)
on SrTiO 3 (STO) exhibits the 1/f α-type current power spectral density (PSD) with α∼ 1.39.
The non-unity exponent α indicates the discrepancy between the depth distributions of
electrons and oxygen vacancies in the STO substrate. Second, the amorphous LaAlO
3/KTaO 3 (LAO/KTO) interface, another quasi-2D electron system, shows Lorentzian …
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