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- Oh, Yoon Seok
- Laboratory for Strong Correlation in Quantum Materials
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Non-monotonic dependence of the anomalous Hall coefficient scaling parameter in annealed Ga1− xMnxAs epifilms
- Author(s)
- Choi, HK, Lee, WO, Oh, Yoon Seok, Kim, KH, Park, YD
- Issued Date
- 2007-03
- Citation
- JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v.310, no.2, pp.2129 - 2131
- Abstract
- When plotting the anomalous Hall coefficient (Rs) and longitudinal resistivty (ρxx) for a series of annealed Ga1-xMnxAs epilayers (x≈0.055), we find the value of the scaling parameter n, from RS=cρxx n, to range from one, as-grown, to two at an optimal annealing temperature to values greater than three for higher annealing temperatures, similar behavior to certain inhomogeneous systems. This scaling relationship can be a new method to detect secondary phases in ferromagnetic semiconductor systems. © 2006 Elsevier B.V. All rights reserved.
- Publisher
- ELSEVIER SCIENCE BV
- ISSN
- 0304-8853
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