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| 001 | 818146 | ||
| 005 | 20210129224110.0 | ||
| 024 | 7 | _ | |a 10.1103/PhysRevX.6.031035 |2 doi |
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| 100 | 1 | _ | |a Gunkel, F. |0 P:(DE-Juel1)130677 |b 0 |e Corresponding author |u fzj |
| 245 | _ | _ | |a Defect Control of Conventional and Anomalous Electron Transport at Complex Oxide Interfaces |
| 260 | _ | _ | |a College Park, Md. |c 2016 |b APS |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Using low-temperature electrical measurements, the interrelation between electron transport, magnetic properties, and ionic defect structure in complex oxide interface systems is investigated, focusing on NdGaO3/SrTiO3 (100) interfaces. Field-dependent Hall characteristics (2–300 K) are obtained for samples grown at various growth pressures. In addition to multiple electron transport, interfacial magnetism is tracked exploiting the anomalous Hall effect (AHE). These two properties both contribute to a nonlinearity in the field dependence of the Hall resistance, with multiple carrier conduction evident below 30 K and AHE at temperatures ≲10 K. Considering these two sources of nonlinearity, we suggest a phenomenological model capturing the complex field dependence of the Hall characteristics in the low-temperature regime. Our model allows the extraction of the conventional transport parameters and a qualitative analysis of the magnetization. The electron mobility is found to decrease systematically with increasing growth pressure. This suggests dominant electron scattering by acceptor-type strontium vacancies incorporated during growth. The AHE scales with growth pressure. The most pronounced AHE is found at increased growth pressure and, thus, in the most defective, low-mobility samples, indicating a correlation between transport, magnetism, and cation defect concentration |
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| 700 | 1 | _ | |a Swartz, Adrian G. |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Merz, Tyler A. |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Hikita, Yasuyuki |0 P:(DE-HGF)0 |b 6 |
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| 773 | _ | _ | |a 10.1103/PhysRevX.6.031035 |g Vol. 6, no. 3, p. 031035 |0 PERI:(DE-600)2622565-7 |n 3 |p 031035 |t Physical review / X |v 6 |y 2016 |x 2160-3308 |
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