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Near-Field Imaging with Sound: An Acoustic STM Model
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/content/aapt/journal/tpt/50/7/10.1119/1.4752046
2012-09-10
2014-07-12

Abstract

The invention of scanning tunneling microscopy(STM) 30 years ago opened up a visual window to the nano-world and sparked off a bunch of new methods for investigating and controlling matter and its transformations at the atomic and molecular level.1 However, an adequate theoretical understanding of the method is demanding; STM images can be considered quantum theory condensed into a pictorial representation. A hands-on model is presented for demonstrating the imaging principles in introductory teaching. It uses sound waves and computer visualization to create mappings of acoustic resonators. The macroscopic simile is made possible by quantum-classical analogies between matter and sound waves. Grounding STM in acoustic experience may help to make the underlying quantum concepts such as tunneling less abstract to students.

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Scitation: Near-Field Imaging with Sound: An Acoustic STM Model
http://aip.metastore.ingenta.com/content/aapt/journal/tpt/50/7/10.1119/1.4752046
10.1119/1.4752046
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