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J. Daniel Bryan

University of Washington

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Featured researches published by J. Daniel Bryan.

Applied Physics Letters | 2006

Magnetic circular dichroism of ferromagnetic Co2+-doped ZnO

Kevin R. Kittilstved; Jialong Zhao; William K. Liu; J. Daniel Bryan; Dana A. Schwartz; Daniel R. Gamelin

Cobalt-doped ZnO (Co2+:ZnO) films were studied by magnetic circular dichroism (MCD) spectroscopy. A broad 300K ferromagnetic MCD signal was observed between 1.4 and 4.0eV after exposure of paramagnetic Co2+:ZnO films to zinc metal vapor, attributed to low-energy photoionization transitions originating from a spin-split donor impurity band in ferromagnetic n-type Co2+:ZnO.

Archive | 2005

Doped Semiconductor Nanocrystals: Synthesis, Characterization, Physical Properties, and Applications

J. Daniel Bryan; Daniel R. Gamelin

Journal of the American Chemical Society | 2004

Strong room-temperature ferromagnetism in Co2+-doped TiO2 made from colloidal nanocrystals.

J. Daniel Bryan; Steve M. Heald; and Scott A. Chambers; Daniel R. Gamelin

Journal of the American Chemical Society | 2005

Activation of high-TC ferromagnetism in Co2+:TiO2 and Cr3+:TiO2 nanorods and nanocrystals by grain boundary defects.

J. Daniel Bryan; Steven A. Santangelo; Sean C. Keveren; Daniel R. Gamelin

Journal of Nanoscience and Nanotechnology | 2005

The influence of dopants on the nucleation of semiconductor nanocrystals from homogeneous solution.

J. Daniel Bryan; Dana A. Schwartz; Daniel R. Gamelin

Physical Review Letters | 2010

Negligible Magnetism in Excellent Structural Quality Cr[subscript x]Ti[subscript 1-x]O[subscript 2] Anatase: Contrast with High-T[subscript C] Ferromagnetism in Structurally Defective Cr[subscript x]Ti[subscript 1-x]O[subscript 2]

Tiffany C. Kaspar; Steve M. Heald; C. M. Wang; J. Daniel Bryan; Timothy C. Droubay; V. Shutthanandan; Suntharampillai Thevuthasan; David E. McCready; A. J. Kellock; Daniel R. Gamelin; Scott A. Chambers

arXiv: Other Condensed Matter | 2005

Critical Nucleus Size, Composition, and Energetics in the Synthesis of Doped ZnO Quantum Dots

J. Daniel Bryan; Dana A. Schwartz; Daniel R. Gamelin

arXiv: Materials Science | 2005

300 K Ferromagnetic Magnetic Circular Dichroism in Co2+-doped ZnO Activated by Shallow Donors

Kevin R. Kittilstved; Jialong Zhao; William K. Liu; J. Daniel Bryan; Daniel R. Gamelin

Archive | 2005

Doped Semiconductor Nanocrystals: Synthesis, Characterization, Physical Properties, and Applications Progress in Inorganic Chemistry, 2005, vol. 54, 47-126

J. Daniel Bryan; Daniel R. Gamelin

Archive | 2004

Co 2+ -Doped TiO 2 made from Colloidal Nanocrystals

J. Daniel Bryan; Steve M. Heald; Scott A. Chambers; Daniel R. Gamelin

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Daniel R. Gamelin

University of Washington

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Steve M. Heald

Argonne National Laboratory

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Dana A. Schwartz

University of Washington

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Scott A. Chambers

Pacific Northwest National Laboratory

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Jialong Zhao

University of Washington

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Kevin R. Kittilstved

University of Massachusetts Amherst

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William K. Liu

University of Washington

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C. M. Wang

Environmental Molecular Sciences Laboratory

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David E. McCready

Pacific Northwest National Laboratory

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Suntharampillai Thevuthasan

Pacific Northwest National Laboratory

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