Electron tunneling chains of mitochondria

Spin-flip inelastic electron tunneling spectroscopy in atomic chains

We present a theoretical study of the spin transport properties of monoatomic magnetic chains with a focus on the spectroscopical features of the I -V curve associated with spin-flip processes. Our calculations are based on the s-d model for magnetism with the electron transport treated at the level of the nonequilibrium Green’s function formalism. Inelastic spin-flip scattering processes are i...

Indirect Electron Tunneling

Indirect electron tunneling is observed in germanium diodes by detecting small perturbations in their I-V characteristics at low temperatures that occur when the applied potential equals the energy of emitted phonons. Frequencies of the observed phonons are calculated to a comparable degree of accuracy (±0.3E12 Hz) with neutron scattering data. Electronic differentiation, used to closely inspec...

Single Electron Tunneling Junctions

This paper and its associated Python programs explore the dynamics of single electron tunneling junction (SETJ) circuits. SETJs can potentially be used as nonlinear circuit elements to implement new paradigms for information processing. I show that an isolated SETJ circuit with a constant bias voltage and sinusoidal pump offset can produce a variety of interesting nonlinear behavior. By adjusti...

Electron tunneling and superconductivity.

Single-Electron Tunneling Devices

Single-electron tunneling devices can detect charges much smaller than the charge of an electron. This enables phenomenally precise charge measurements and it has been suggested that large scale integration of single-electron devices could be used to construct logic circuits with a high device packing density. Here the operation of the two basic types of single-electron tunneling transistors is...