DOI: 10.1063/1.2741408. Aggregation-based growth and magnetic properties of inhomogeneous Cu-doped ZnO nanocrystals

Aggregation-based growth and magnetic properties of inhomogeneous Cu-doped ZnO nanocrystals

10.1063/1.2741408

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

The authors report on the ferromagnetic ordering in 1.86at.% Cu-doped ZnO nanocrystals synthesized by a solvothermal route. The distribution of Cu in ZnO lattice was inhomogeneous. In the Cu-poor cores, a spin-split acceptor impurity band model was proposed to explain the ferromagnetism. While in the Cu-rich surface layers, the shallow donorlike defects generated by imperfect oriented attachment could not only compensate a few holes but also readily occupy the Cu 3d states to destroy CuO4 tetrahedra, hence resulting in the short-range antiferromagnetic clusters. As a result, an interesting exchange biasing phenomenon took place at the ferromagnetic/antiferromagnetic interface.

Bibliography

Wang, X., Xu, J. B., Cheung, W. Y., An, J., & Ke, N. (2007). Aggregation-based growth and magnetic properties of inhomogeneous Cu-doped ZnO nanocrystals. Applied Physics Letters, 90(21).

Authors 5

Xuefeng Wang (first)
J. B. Xu (additional)
W. Y. Cheung (additional)
Jin An (additional)
Ning Ke (additional)

References 37 Referenced 77

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Dates

Type	When
Created	18 years, 3 months ago (May 22, 2007, 4:56 p.m.)
Deposited	2 years, 2 months ago (July 3, 2023, 12:24 a.m.)
Indexed	1 month ago (July 30, 2025, 6:48 a.m.)
Issued	18 years, 3 months ago (May 21, 2007)
Published	18 years, 3 months ago (May 21, 2007)
Published Online	18 years, 3 months ago (May 21, 2007)
Published Print	18 years, 3 months ago (May 21, 2007)

Funders 0

None

BibTeX

@article{Wang_2007, title={Aggregation-based growth and magnetic properties of inhomogeneous Cu-doped ZnO nanocrystals}, volume={90}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.2741408}, DOI={10.1063/1.2741408}, number={21}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Wang, Xuefeng and Xu, J. B. and Cheung, W. Y. and An, Jin and Ke, Ning}, year={2007}, month=may }

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