Virtual Scanning Tunneling Microscope


After the second STM simulator VI is completed, we will finish the prototype by combining the two VIs with our in-house STM in a field-programmable gate array (FPGA)-based measurement system. It is our objective to create a prototype in which each physical component of the system (for example, laser, STM scan-head, current preamplifier, microwave spectrum analyzer, etc.) may be separately exchanged with its simulator. This will provide real-time deterministic control of multiple simulta- neous functions and facilitate the assembly, maintenance, debugging, characterization, and optimization of the prototype.


Conclusion


This article describes a LabVIEW-based virtual scanning tunneling microscope (STM) that is available as a free-download at our company website. This software simulates the full operation of an STM including imaging at the atomic scale.


References [1] G Binnig and H Rohrer , IBM J Res Dev 30 ( 1986 ) 355 – 69 . [2] NS Rebello et al ., Eur J Phys 18 ( 1997 ) 456 – 61 . [3] Specs Zurich GmbH, Zurich, www.specs-zurich.com . [4] NewPath Research L.L.C., Salt Lake City, Utah, www. newpathresearch.com .


[5] MJ Hagmann , J Vac Sci Technol B 33 ( 2015 ) 02B109 . [6] MJ Hagmann et al ., J Appl Phys 114 ( 2013 ) 223107 .


 Get Radical (oxygen radicals) with


Evactron® Plasma Cleaning


  





       


 


22


 


www.microscopy-today.com • 2018 May


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68