CMSP Seminar IN PERSON, 20 September at 15:00 CET, Prof. Malik Maaza

[Condensed Matter and Statistical Physics]

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CMSP Seminar
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** * * Tuesday**, 20 September 2022, 15:00**CET* * **
In person: *Room D (Leonardo Building, terrace level)
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/Zoom registration link*: 
*/https://zoom.us/meeting/register/tJItcO6tqTIrG9KqIIcx4KWCbtWUwNnHeffr**

Speaker: *Malik Maaza *(UNESCO-UNISA Africa Chair in 
Nanosciences-Nanotechnology, University of South Africa, Pretoria-South 
Africa
Nanosciences African Network (NANOAFNET), iThemba LABS-National Research 
Foundation, South Africa)

Title: *Size effects in nanoscaled systems & computational optimization*

Abstracts:
It is well established that matter at the nanoscale exhibits several 
size effects governed by size, shape, or surface to volume ratio as well 
as by the breaking of the 3-D symmetry and spatial confinement. 
Preliminary DFT based theoretical & modelling treatments are pivotal in 
allowing the identification of the optimal conditions. This contribution 
reports on Quantum Mechanic governed phenomena at room temperature in 
several nano-scaled systems. Due to the relativistic contraction in 
connection to the Dirac dynamics of the valence electrons of Mercury, 
this later is shown to be solid at room temperature for Nanoparticles of 
mercury with size below 5 nm in Ø. Owing to their large longitudinal to 
transversal anisotropy ratio & their multi-electronic properties, Carbon 
Nano-tubes are ideal nano-systems to localize light and hence to observe 
the Anderson Localization at room temperature. Likewise, due to the 
wave-particle duality, it is demonstrated that cold neutron wave-matter 
wave-packets can be trapped in the equivalent of Nano-scaled Fabry-Perot 
nano-resonators. Last but not least, Lycopene, a conjugated natural 
molecule is shown to exhibit an enhanced third order optical 
nonlinearity; the highest value relatively to any natural carotenoid.

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CMSP Seminars support:OnlineCMSP at ictp.it  

CMSP, Condensed Matter & Statistical Physics Section
http://www.ictp.it/research/cmsp.aspx

The Abdus Salam International Centre for Theoretical Physics
https://www.ictp.it/

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