Single electron spintronics.

Electron and Spin Transport through Single Molecules with Scanning Tunneling Microscopy

Dominant Spin Relaxation Mechanisms in Organic Semiconductor Alq3

Recent interest in the field of “spintronics” stems primarily from the desire to use the spin degree of freedom of a single electron, or a collection of electrons, to store, process, detect and communicate information. Digital information (in the form of binary bits 0 and 1) is encoded in the spin polarization of electron(s), then “processed” using spin-spin or spin-orbit interactions, subseque...

Tunable Negative Differential Resistance controlled by Spin Blockade in Single Electron Transistors

We demonstrate a tunable negative differential resistance controlled by spin blockade in single electron transistors. The single electron transistors containing a few electrons and spin polarized source and drain contacts were formed in GaAs/GaAlAs heterojunctions using metallic gates. Coulomb blockade measurements performed as a function of applied source-drain bias, electron number, and magne...

L OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY - Flip Process

Introduction The field of spintronics is related with the spin degree of freedom of the electrons. It is aimed at proposing, designing and developing electronic devices to harness spin phenomena. Spintronics relies on the direction of an electron’s rotation to convey data instead of electronic charges. Roughly speaking, an electron can be viewed as a tiny ball that spins like a baseball. The di...

Spin Transport and Dynamics in Nanoscale Hybrid Structures

The objective of this project is to fabricate and characterize nanoscale hybrid tunnel-junction structures that will reveal new physical aspects of the spin-dependent quantum states and dynamic behavior of single electrons. Several interesting effects have been predicted for spindependent transport in ferromagnet (FM)/metal/ferromagnet and FM/superconductor/FM double junctions. One goal is expe...

Albert Fert - Nobel Lecture

Electrons have a charge and a spin, but until recently, charges and spins have been considered separately. In conventional electronics, the charges are manipulated by electric fields but the spins are ignored. Other classical technologies, magnetic recording for example, are using the spin but only through its macroscopic manifestation, the magnetization of a ferromagnet. This picture started t...