Home > Science > Scientists
Scanning tunnelling microscope head
Wall Art and Photo Gifts from Science Photo Library
Scanning tunnelling microscope head
Scanning tunnelling microscope head. Physicist Ali Yazdani looking at the head of a variable temperature scanning tunnelling microscope (STM). The STM allows scientists to visualize regions of high electron density and hence infer the position of individual atoms and molecules on the surface of a lattice. It operates by bringing a fine point electrode, up to one atom wide at the tip, to within a few ten-millionths of a millimetre of the samples surface. As the electrons of the atoms in the sample and tip interact, a small tunnelling current is created. The electrode is scanned across the sample, vertical movements maintaining tip-to-surface distance. These movements are then processed by computer to give a map of the surface
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6418661
© VOLKER STEGER/SCIENCE PHOTO LIBRARY
Ali Yazdani Instrument Microscope Microscopes Microscopy Nanotechnology North American Observing Physicist Pnml Princeton University Quantum Mechanics Scanning Tunnelling Microscope Scientific Spin Based Electronics Technique Techniques Us A Laboratory Physical
FEATURES IN THESE COLLECTIONS
> Science
> Scientists
EDITORS COMMENTS
This print showcases physicist Ali Yazdani engrossed in studying the head of a variable temperature scanning tunnelling microscope (STM). With his focused gaze and intricate equipment, he delves into the fascinating world of quantum mechanics and nanotechnology. The STM enables scientists to visualize areas with high electron density, allowing them to discern the precise positions of individual atoms and molecules on a lattice's surface. Operating at an astonishingly minute scale, this cutting-edge instrument employs a fine point electrode that is only one atom wide at its tip. It delicately approaches within mere ten-millionths of a millimeter from the sample's surface. As electrons from both the sample and tip interact, they generate a minuscule tunnelling current. By meticulously scanning the electrode across the sample while maintaining constant tip-to-surface distance through vertical movements, researchers obtain invaluable data. These intricate movements are then processed by advanced computer systems to create detailed maps of surfaces under investigation. This groundbreaking technique has revolutionized condensed matter physics and opened up new avenues for research in spin-based electronics and single-spin phenomena. Ali Yazdani, hailing from Princeton University's prestigious Nanoscale Laboratory, exemplifies scientific dedication as he explores uncharted territories using state-of-the-art microscopy techniques. His work embodies humanity's relentless pursuit of knowledge and technological advancement in understanding our world at its most fundamental level.
MADE IN THE USA
Safe Shipping with 30 Day Money Back Guarantee
FREE PERSONALISATION*
We are proud to offer a range of customisation features including Personalised Captions, Color Filters and Picture Zoom Tools
SECURE PAYMENTS
We happily accept a wide range of payment options so you can pay for the things you need in the way that is most convenient for you
* Options may vary by product and licensing agreement. Zoomed Pictures can be adjusted in the Cart.
