Archive for August, 2014

Hartshorne, Jablonski, Taheri, and colleagues publish in Small

Posted in News on August 13th, 2014 by admin – Comments Off on Hartshorne, Jablonski, Taheri, and colleagues publish in Small

Matthew Hartshorne, Michael Jablonski, Dr. Taheri, and colleagues’ latest paper, titled “Observation of self-assembled core–shell structures in epitaxially embedded TbErAs nanoparticles,” has been published online in Ultramicroscopy.

From the abstract: “Self-assembled core–shell structured rare-earth nanoparticles (TbErAs) are observed in a III–V semiconductor host matrix (In0.53Ga0.47As) nominally lattice-matched to InP, grown via molecular beam epitaxy. Atom probe tomography demonstrates that the TbErAs nanoparticles have a core–shell structure, as seen both in the tomographic atom-by-atom reconstruction and concentration profiles. A simple thermodynamic model is created to determine when it is energetically favorable to have core–shell structures; the results strongly agree with the observations.”

The accepted proof of the paper can be accessed here.

More information is available on the Wiley website.

DCG hosts visiting professor, Miryam Arredondo

Posted in News on August 1st, 2014 by admin – Comments Off on DCG hosts visiting professor, Miryam Arredondo

The DCG is pleased to be hosting Dr. Miryam Arredondo, lecturer from the School of Mathematics and Physics at Queen’s University–Belfast in Northern Ireland. Dr. Arredondo’s work involves the study of ferroelectric domain dynamics using transmission electron microscopy. While here she will be conducting in situ microscopy studies with the group.

For more information, please visit Dr. Arredondo’s research website.

Ghassemi, Harlow, Taheri, and colleagues publish in Journal of Materials Chemistry A

Posted in News on August 1st, 2014 by admin – Comments Off on Ghassemi, Harlow, Taheri, and colleagues publish in Journal of Materials Chemistry A

Dr. Hessam Ghassemi, Wayne Harlow, Dr. Taheri, and colleagues’ latest paper, titled “In situ environmental transmission electron microscopy study of oxidation of two-dimensional Ti3C2 and formation of carbon-supported TiO2,” has been published online in the Journal of Materials Chemistry A.

From the abstract: “Two-dimensional Ti3C2, also known as “MXene”, was oxidized in air under two different oxidizing regimes in order to produce carbon-supported TiO2. In situ TEM analysis coupled with Raman spectroscopy revealed the formation of either anatase nanoparticles or planar rutile nanocrystals, which were controlled by the time, temperature and heating rate.”

The accepted proof of the paper can be accessed here.

More information is available on the Royal Society website.