Avoiding photothermal noise in laser assisted scanning tunneling microscopy

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Thermal expansion produced by laser irradiation of the tunneling junction is analyzed, as a necessary step towards detection and identification of other laser induced currents in scanning tunneling microscopy (STM). Solving a tridimensional heat diffusion model, the amplitude of thermal expansion as...

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Detalles Bibliográficos
Autores principales: Landi, S.M., Bragas, A.V., Coy, J.A., Martínez, O.E.
Formato: JOUR
Materias:
Laser assisted
Photothermal currents
Scanning tunneling microscope
Thermal noise
Computational methods
Electric currents
Gold
Graphite
Laser beam effects
Mathematical models
Signal to noise ratio
Thermal diffusion
Thermal expansion
Gaussian beams
Photothermal noise
Scanning tunneling microscopy
analytic method
article
frequency modulation
heat transfer
laser
mathematical analysis
scanning tunneling microscopy
signal noise ratio
thermal exposure
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03043991_v77_n3-4_p207_Landi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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