Dynamic spin injection into a quantum well coupled to a spin-split bound state

Spin-injection spectroscopy of a spin-orbit coupled Fermi gas.

The coupling of the spin of electrons to their motional state lies at the heart of recently discovered topological phases of matter. Here we create and detect spin-orbit coupling in an atomic Fermi gas, a highly controllable form of quantum degenerate matter. We directly reveal the spin-orbit gap via spin-injection spectroscopy, which characterizes the energy-momentum dispersion and spin compos...

Spin injection into a superconductor with strong spin-orbit coupling.

We demonstrate spin injection into superconducting Nb by employing a spin absorption technique in lateral spin valve structures. Spin currents flowing in a nonmagnetic Cu channel are preferably absorbed into Nb due to its strong spin-orbit interaction, the amount of which dramatically changes below or above the superconducting critical temperature (TC). The charge imbalance effect observed in t...

Spin Injection into Semiconductors

S 713 FRIDAY AFTERNOON, 8 NOVEMBER 2013 PLAZA BALLROOM F, 1:30 TO 4:30 Session HB SPIN INJECTION INTO SEMICONDUCTORS Georg Schmidt, Chair

Spin Injection into Amorphous Semiconductors

Cooper-pair injection into quantum spin Hall insulators.

We theoretically study tunneling of Cooper pairs from a superconductor spanning a two-dimensional topological insulator strip into its helical edge states. The coherent low-energy electron-pair tunneling sets off positive current cross correlations along the edges, which reflect an interplay of two quantum-entanglement processes. Most importantly, superconducting spin pairing dictates a Cooper ...