Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Electrostatic screening and Friedel oscillations in semiconducting nanotubes
Репозиторій DSpace/Manakin
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Electrostatic screening and Friedel oscillations in semiconducting nanotubes
Тема:
Carbon nanotubes, quantum wires and Luttinger liquid
Інший ID:
PACS: 73.63.Fg
Посилання:
Electrostatic screening and Friedel oscillations
in semiconducting nanotubes / A.V. Chaplik, L.I. Magarill, R.Z. Vitlina // Физика низких температур. — 2008. — Т. 34, № 10. — С. 1094–1097. — Бібліогр.: 8 назв. — англ.
Підтримка:
This work has been supported by the RFBR, by the RF
President grant for scientific schools, as well as by the
Programs of the Russian Academy of Sciences.
Дата:
2008
Переглядів:
936
Завантажень:
454
Анотація:
In 3D and 2D electronic systems the singular contribution to the static permittivity ε (Kohn singularity)
is a small correction to the regular part of ε but it results in the leading term in asymptotic behavior of the
screened potential (Friedel oscillations). In the present letter we show that for nanotubes quite different results
are valid: ε becomes infinitely large at the singular point and the Friedel oscillations do not play the
dominant role in the screening at the large distances. Moreover, the zero and highest cylindrical harmonics
of the effective potential are screened by quite different mechanisms.
