Conductivity and transmission coefficients of ultra-thin disordered metallic films

• Autorzy: Spisak B.J. , Paja A.
• Języki publikacji: EN

Abstrakty

EN

The diffusive motion of quasi-two-dimensional electron gas through an ultra-thin system of disordered potentials is considered. In such system the Fermi sphere splits into a set of independent sheets due to the small thickness of the system. Each sheet can be seen as an electron sub-band. The electron transport goes through these sub-bands independently. The sum of electrical conductivities over these sub-bands determines the total current which is calculated for ultra-thin films of cesium. We also present the relation between our approach and Landauer formalism based on the notation of the transmission coefficient.

Słowa kluczowe

EN

electron transport; disorder; relaxation time; thin films; transmission coefficient

PL

transport elektronów; nieuporządkowanie; czas relaksacji; cienkie warstwy; współczynnik transmisji; ultracienkie warstwy metaliczne; przewodność właściwa

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2006
• Tom: Vol. 24, No. 3
• Strony: 605--609
• Opis fizyczny: Bibliogr. 11 poz.

Twórcy

autor

Spisak B.J.

autor

Paja A.

• Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków,

Bibliografia

• [1] DATTA S., Electronic Transport in Mesoscopic Systems, Cambridge University Press, Cambridge, 1999.
• [2] FEDOROV D., ZAHN P., MERTIG I., Thin Solid Films, 473 (2005), 346.
• [3] SPISAK B.J., PAJA A., Mol. Phys. Rep., 40 (2004), 144.
• [4] LUTTINGER J.M., KOHN W., Phys. Rev., 108 (1957), 590.
• [5] ASHCROFT N.W., MERMIN N.D., Solid State Physics, PWN, Warszawa, 1980 (in Polish).
• [6] ZIMAN J.M., Electrons and Phonons, Clarendon Press, Oxford, 2001.
• [7] LANDAUER R., Phil. Mag., 21 (1970), 863.
• [8] KHAN N.Q., TOAN N.M., Solid State Commun., 125 (2003), 133.
• [9] PFENNIGSTORF O., PETKOVA A., KALLASSY Z., HENZLER M., Eur. Phys. J. B, 30 (2005), 111.
• [10] KRAMER B., MACKINNON A., Rep. Prog. Phys., 56, (1993), 1469.
• [11] ABRAHAMS E., ANDERSON P.W., LICCIARDELLO D.C., RAMAKRISHNAN T.V., Phys. Rev. Lett. 42, (1979) 673.