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Ali Mostaed


About Me

I completed my M.Sc. degree in Materials Science and Engineering at K.N Toosi University of Technology and did my thesis on fabrication and characterization of nanocomposites. I am currently working on my PhD project entitled "Structure and Bonding of Functional Oxides" under the supervision of Dr. Richard Beanland and Prof. Geetha Balakrishnan at University of Warwick. I will be investigating structure and bonding of several magnetic ternary metallic oxides using ac-STEM/ac-TEM.

Research Interests

Characterization, Atomic Resolution STEM/TEM, Quantitative STEM, Atomic Resolution EELS/EDS, Geometric Magnetic Frustration, Crystallography, Nanostructures

Major Achievements

I discovered that the detailed intensity distribution around the visible atomic columns in the ADF images is sensitive to the presence of nearby atoms of low atomic number like oxygen, even though they are not directly visible in the images. To the best of my knowledge, I, for the first time, managed to detect the oxygen columns with a distance of ~30 pm in ADF-STEM images. For more information see PRB, 95, 094431.

Oxygen_ADF

Education
M.Sc. | 2006-2009

K.N. Toosi University of Technology (KNTU), Tehran, Iran
· Major: Materials Science and Engineering
· Title of Thesis: Fabrication of Al-4.5wt%Cu/SiC Nanocomposite via Mechanical Milling Process; Evaluation and Comparison of its Precipitation hardening Behavior with Al-4.5wt%Cu Alloy's

B.Sc. | 2002-2006

Isfahan University of Technology (IUT), Isfahan, Iran
· Major: Materials Engineering
· Title of Thesis: Cathodic Protection of Reinforced Concrete

PhD Student,
Department of Physics,
University of Warwick,
CV4 7AL, Coventry, UK

Office: MAS 1.06
Tel: +44 (0)2476 574395
E-mail: a.mostaed@warwick.ac.uk
webpage: www.alimostaed.webs.com

   RG

CV(pdf)













Programming

I have developed a program, “BergersVectors”, calculating Burgers vector of the defects in (S)TEM images.

MyProgram

 
Publications (Journals)

[1] Physical Review B, Vol. 95, 094431 (2017)
[2] Materials Science and Engineering: C, Vol. 77, p.1170 (2017)
[3] Journal of the Mechanical Behavior of Biomedical Materials, Vol. 60, p. 581 (2016)
[4] Materials characterization, Vol. 76, p. 76 (2013)
[5] Powders Technology, Vol. 221, p. 278 (2012)
[6] Journal of Nano Research, Vol. 13, p.1 (2011)
[7] Defect and Diffusion Forum, Vols. 297-301, p.1262 (2010)
[8] Defect and Diffusion Forum, Vols. 283-286, p.494 (2009)
[9] Defect and Diffusion Forum, Vols. 283-286, p.499 (2009)

Conferences (Selected):

[1] A. Mostaed, G. Balakrishnan, M.R. Lees and R. Beanland, "The effect of oxygen on the contrast of ADF-STEM images", Electron Microscopy and Analysis Group (EMAG) conference, Durham, UK, 2016.

[2] A. Mostaed, G. Balakrishnan, M.R. Lees and R. Beanland, "Atomic Structure Study of the Quantum Spin-ice Pyrochlore Yb2Ti2O7", The American Physical Society (APS) March meeting, Baltimore, USA, 2016.

[3] A. Mostaed, R. Beanland, M.R. Lees and G. Balakrishnan, "Transmission electron microscopy study of Yb2Ti2O7", The Microscience Microscopy Congress (MMC), Manchester, UK, 2014.

Awards:

Chancellor's International Scholarship (Full Scholarship)



Examples:

Atomic resolution EELS map of Yb2Ti2O7 along [110]

 

Gold atoms dancing as a result of heating by the electron beam leading to gold nanoparticles 'kissing' and 'hugging' each other

 

Atomic resolution image and EDS maps of a Yb2Ti2O7 single crystal along [110] (Scale bar is 0.5 nm). Colour code: Yb in green and Ti in Red