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The interaction of light with matter reveals important information about the chemical composition of the solid phases, their electronic band structure and, in particular, about the carrier dynamics and coherence times. Thereby, the spin degree of freedom has attracted a lot of interest in past and plays an important role for spin-orbit entangled phenomena, e.g. spin-orbit density waves, spin dephasing in spinpolarized nanostructures or future quantum computer concepts. 

In addition to experiments performed at synchrotrons around the world the institute hosts a unique infrastructure in order to perform high resolution noise- and g-factor spectroscopy at low dimensional systems. Besides such fundamentally driven issues, the institute addresses also life-time effects in Si-based solar cells by transient photoconductance.

Some recent examples are listed below.

Interplay of Electron and Nuclear Spin Noise in n-Type GaAs

Phys. Rev. Lett. 115, 176601 (2015)

Picture: Nuclear SN spectra as a function of the transverse magnetic field at T=4.2 K and P=1 μW.

Observation of correlated spin-orbit order in a strongly anisotropic quantum wire system

Nature Communications 6, 8118 (2015)

Picture: Real space sketch of antiferromagnetically coupled spin spirals  propagating along the wires direction.