10/10 Lab Seminar (UCL Prof. Prof. Alexander Shluger)


10月10日(水)にUCL(University College London)のAlexdander Shluger教授が本学に来学されます。この良い機会に、研究室セミナーを公開開催します。是非ともご参加下さい。

 Shluger教授は、絶縁体(酸化物、イオン性結晶など)の欠陥や表面に関する理論研究で高名な研究者です。最近は、原子間力顕 微鏡のシミュレーションや水に関する現象の研究も進められています。

 Prof. Alexander Shluger of University College London (UCL) will visit JAIST next week and give a seminar, which is open to all. His major field is the theoretical study of insulators, mainly oxides and ionic crystals, and the simulation of atomic force microscopy (AFM) and water covering surfaces. You can see the seminar title and abstract below.
 Recently, UCL and JAIST have started a collaborative program to foster excellent doctoral students. Those who are interested in the program, but not in the field, can also feel one aspect of the research activities at UCL.
We hope that you join his seminar and enjoy it.

Date and time: Oct. 10, Wednesday, 2012. From 15:45 for about one hour
Place: Seminar room on the 8th floor of MS IV building
Seminar title and Abstract:

Mechanisms of Imaging and Manipulation of Surface Atoms using AFM
Professor Alexander Shluger
Department of Physics and Astronomy, University College London, London UK
WPI-AIMR, Tohoku University, Sendai, Japan

I will present the results of theoretical modelling of the mechanisms of obtaining atomic and chemical resolution using non-contact Atomic Force Microscopy (NC-AFM) on insulating surfaces in vacuum and in water. I will demonstrate that the chemical nature of NC-AFM tips plays the crucial role in determining contrast in images and that metallic tips can provide unambiguous chemical resolution on insulating surfaces in vacuum. Examples of imaging and manipulating atoms and molecules at insulating surfaces will be presented and the mechanisms of manipulation discussed. I will show how diffusion of atoms and molecules can affect their images and will demonstrate that water molecules between tip and surface play an important role in contrast formation in NC-AFM imaging of hydrophilic surfaces in water.

Contact: Tomitori Laboratory