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Methods of point-contact preparation Prof. I.V.Krive lecture presentation Address: Svobody Sq. 4, 61022, Kharkiv, Ukraine, Rooms. 5-46, 7-36, Phone: +38(057)707.

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Presentation on theme: "Methods of point-contact preparation Prof. I.V.Krive lecture presentation Address: Svobody Sq. 4, 61022, Kharkiv, Ukraine, Rooms. 5-46, 7-36, Phone: +38(057)707."— Presentation transcript:

1 Methods of point-contact preparation Prof. I.V.Krive lecture presentation Address: Svobody Sq. 4, 61022, Kharkiv, Ukraine, Rooms. 5-46, 7-36, Phone: +38(057)707 54 30, e-mail:ktf@karazin.ua

2 Thin films, 70-th Nanotechnology, 90-th Break junction, 90-th Needle-anvil, 75-th Sliding, 80-th Methods of point-contact preparation notch “Soft” PC, 2000-th

3 Most popular setup for PCs establishing at low temperatures Two metallic bars are touching in liquid He (at -270 C) Set up allows to move upper sample in 2 directions

4 Atomic contacts and nanowires G 0 =2e 2 /h=1/12.9 (k   Displacement A.I.Yanson et al., Nature, 395,783 (1998). J.M.Krans et al., Nature, 375,767 (1995).

5 Quantum point contacts in 2DEG and conductance quantization

6 Scanning tunneling microscope Gerd Binnig and Heinrich Rohrer (Nobel Prize in Physics 1986)

7 Atomic force microscope and force oscillations


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