TY - JOUR
T1 - Planar array of semiconducting nanotubes in an external electric field
T2 - Collective screening and polarizability
AU - Sedrakyan, T. A.
AU - Mishchenko, E. G.
AU - Raikh, M. E.
PY - 2006
Y1 - 2006
N2 - We study theoretically the charge separation in a planar array of semiconducting nanotubes (NTs) of length, 2h, placed in an external electric field, F, parallel to their axes. By employing the conformal mapping, we find analytically the exact distribution of the induced charge density for the arbitrary ratio of the gap, Eg, and the voltage drop, eFh, across the NT. We use the result obtained to (i) trace the narrowing of the neutral strip at the center of the NT with increasing F, (ii) analyze the polarizability of the array as a function of Eg, and (iii) study the field enhancement near the tips.
AB - We study theoretically the charge separation in a planar array of semiconducting nanotubes (NTs) of length, 2h, placed in an external electric field, F, parallel to their axes. By employing the conformal mapping, we find analytically the exact distribution of the induced charge density for the arbitrary ratio of the gap, Eg, and the voltage drop, eFh, across the NT. We use the result obtained to (i) trace the narrowing of the neutral strip at the center of the NT with increasing F, (ii) analyze the polarizability of the array as a function of Eg, and (iii) study the field enhancement near the tips.
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U2 - 10.1103/PhysRevB.74.235423
DO - 10.1103/PhysRevB.74.235423
M3 - Article
AN - SCOPUS:33845478156
SN - 1098-0121
VL - 74
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 23
M1 - 235423
ER -