Theoretical Nanophysics 10/2023

• 1

• 2/3

• 1/2

• 1/4

• 42 pA

• 111 pA

• 721 pA

• 931 pA

What is the limit of the function x/sh(x), as x -> 0?

• 0

• 1

• -1

• infinity

If gate voltage is increased as n_g = 1/2, 3/2, 5/2, 7/2, ..., then the Coulomb peak height ...

• increases

• does not change

• decreases

• varies randomly

Why is an SET called `transistor'?

• because it's as small as a transistor

• because its conductance is controlled by a gate voltage

• because it is made of silicon

• because it is produced by Intel

Take the Coulomb peak of G(n_g) of an SET as described in the lecture. By doubling the temperature, the peak width...

• doubles

• does not change

• halves

• increases by a factor of 4

Take the Coulomb peak of G(n_g) of an SET as described in the lecture. By doubling the charging energy, the peak width...

• doubles

• does not change

• halves

• increases by a factor of 4

Take the Coulomb peak of G(n_g) of an SET as described in the lecture. By doubling the temperature, the peak height...

• increases

• decreases

• does not change

• can go in either direction, increase or decrease

Take the Coulomb peak of G(n_g) of an SET as described in the lecture. By doubling the charging energy, the peak height...

• increases

• decreases

• does not change

• can go in either direction, increase or decrease

Which one is true for inelastic co-tunneling through an SET?

• the lattice is distorted during tunneling in an inelastic manner

• the total energy of the source-dot-drain system is not conserved

• an electron-hole pair is left on the island after an electron transfer

• its rate is first-order in each tunnel amplitude