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- Oh, Yoon Seok
- Laboratory for Strong Correlation in Quantum Materials
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Interplay between carrier and impurity concentrations in annealed Ga1−xMnxAs: Intrinsic anomalous Hall effect
- Author(s)
- Chun, SH, Kim, YS, Choi, HK, Jeong, IT, Lee, WO, Suh, KS, Oh, Yoon Seok, Kim, KH, Khim, ZG, Woo, JC, Park, YD
- Issued Date
- 2007-01
- Citation
- PHYSICAL REVIEW LETTERS, v.98, no.2, pp.026601
- Abstract
- Investigating the scaling behavior of annealed Ga1-xMnxAs anomalous Hall coefficients, we note a universal crossover regime where the scaling behavior changes from quadratic to linear. Furthermore, measured anomalous Hall conductivities in the quadratic regime when properly scaled by carrier concentration remain constant, spanning nearly a decade in conductivity as well as over 100 K in T-C and comparing favorably to theoretically predicated values for the intrinsic origins of the anomalous Hall effect. Both qualitative and quantitative agreements strongly point to the validity of new equations of motion including the Berry phase contributions as well as the tunability of the anomalous Hall effect.
- Publisher
- AMER PHYSICAL SOC
- ISSN
- 0031-9007
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