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IBM Scientists Reach Breakthrough In Nanoscale Physics

[Techtaffy Newsdesk]

IBM scientists were able to measure for the first time how charge is distributed within a single molecule. This will enable fundamental scientific insights into single-molecule switching and bond formation between atoms and molecules. The ability to image the charge distribution within functional molecular structures holds great promise for future applications such as solar photoconversion, energy storage, or molecular scale computing devices, says the company.

Scientists Fabian Mohn, Leo Gross, Nikolaj Moll and Gerhard Meyer of IBM Research succeeded in imaging the charge distribution within a single molecule by using a special kind of atomic force microscopy called Kelvin probe force microscopy at low temperatures and in ultrahigh vacuum.

The new technique provides complementary information about the molecule, showing different properties of interest. This is reminiscent of medical imaging techniques such as X-ray, MRI, or ultrasonography, which yield complementary information about a person’s anatomy and health condition.

“This technique provides another channel of information that will further our understanding of nanoscale physics. It will now be possible to investigate at the single-molecule level how charge is redistributed when individual chemical bonds are formed between atoms and molecules on surfaces,” explains Fabian Mohn of the Physics of Nanoscale Systems group at IBM Research – Zurich. “This is essential as we seek to build atomic and molecular scale devices.”

[Image Courtesy: IBM Research]

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