Quantum tunneling microscopy

In the traditional lithography approach, researchers continued to consider the idea that modem STM (scanning tunnel Microscopy) could be the proper tool for the formation of two-junction systems when working with very small particles. This consideration had related the studies of single-electron phenomena to the concept of quantum dots (Glazman and Shechter 1989). 

Walter, M., Frondelius, P., Honkala, K and Hakkinen, H. (2007) Flectronic Structure of MgO-Supported Au Clusters Quantum Dots Probed by Scanning Tunneling Microscopy. Physical Review Letters, 99, 096102-1-096102-4. 

In this section, we will present and discuss results from Sc2 C84, which is the most widely studied dimetallofullerene to date. Early scanning tunnelling microscopy [26] and transmission electron microscopic [27] investigations provided evidence in favour of the endohedral structure of this system, which was later confirmed by x-ray diffraction experiments utilising maximum entropy methods [28]. Before experimental data from this system were available, the Sc ions were predicted to be divalent from quantum chemical calculations [29]. Subsequent data from vibrational spectroscopy [30,31], core-level photoemission [32] and further theory [33] on this system were indeed interpreted in terms of divalent Sc ions. 

Pascual, J. I., Mendez, J., Gomez-Herrero, J., Bard, A. M., Garcia, N., and Binh, V. T., Quantum contact in gold nanostructures by scanning tunneling microscopy. Phys. Rev. Lett. 71,1852... 

Hagmann MJ. Effects of the finite duration of quantum tunneling in laser-assisted scanning tunneling microscopy. Int. J. Quant. Chem. Suppl. 1994 28 271-282. DOI 10.1002/ qua.560520829... 

Meng et al. proposed a scheme to describe the interaction between nucleotides and CNTs based on measurement of electronic features through a local probe such as scanning tunneling microscopy (STM), and they demonstrated through quantum mechanical calculations that these... 

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