The significance of nuclear spin polarisation in time-resolved optical studies of III-V semiconductors is addressed. Electron Larmor beats in pump-probe reflectivity from a GaAs/AlGaAs quantum well show Overhauser shift of 0.7 T due to accumulated nuclear polarisation 〈I〉/I=0.065. This leads to precision values of electron g-factor, elucidates nuclear spin pumping and diffusion mechanisms in qu...

COMPASS is a running fixed-target experiment at the CERN SPS with a rich physics program focused on nucleon spin structure and on hadron spectroscopy. One of the main goals of the spin program is the measurement of the transverse spin effects in semi-inclusive DIS off transversely polarised nucleons. In the years 2002, 2003 and 2004 data have been taken using a 160 GeV /c naturally polarised µ ...

In 1995, the HERMES experiment 1],,2] at HERA/DESY started its extensive program to study the spin structure of the nucleon through deep inelastic scattering (DIS) of longitudinally polarised positrons oo polarised ? ! H; ? ! D and 3 ? ! He targets. Inclusive polarised DIS measurements aim at a precise determination of the spin structure functions g 1 and g 2 of the proton and the neutron, usin...

Spin-Polarised cylinders with and without axial magnetic fields are obtained as particular families of solutions of Einstein-Cartan gravity (EC).The first solution represents a spin-polarised cylinder in teleparallel gravity.The second solution is a magnetized solution representing a spin-polarised cylinder where the magnetic fields and spins are distributed along the infinite axis of the cylin...

We review electronic transport in superconducting junctions with Sr2RuO4. Transport measurements provide evidence for chiral domain walls and, therefore, superconductivity Sr2RuO4, but so far, the symmetry of underlying state remains inconclusive. Further studies involving density states and spin-polarised local/non-local Sr2RuO4 magnetic materials could lead to fundamental discoveries a better...

In 1995, the HERMES experiment 1],,2] at HERA/DESY started its extensive program to study the spin structure of the nucleon through deep inelastic scattering (DIS) of longitudinally polarised positrons oo polarised ? ! H; ? ! D and 3 ? ! He targets. Inclusive polarised DIS measurements aim at a precise determination of the spin structure functions g 1 and g 2 of the proton and the neutron, usin...

ii Declaration I wrote this thesis by myself and used none but the indicated resources. Preface In recent years, a lot of new developments in solid state physics have been related to the field of spin electronics. The spin electronic or spintronic device not only uses the charge of electrons to carry information, but also their spin. For example, this allows one to use magnetic fields to manipu...

Theoretically, coherent tunnelling through an MgO barrier can achieve over 1,000% magnetoresistance at room temperature. To date, this has not been demonstrated experimentally. In article, we have categorised magnetic tunnel junctions into four groups and investigated possible causes of the reduction in their by correlating interfacial atomic structures spin-polarised electron transport. We con...

In this paper we report a direct evidence of the suppression of critical current due to pair-breaking in a superconducting micro-bridge when the measurement is carried out by injecting spin polarised carriers instead of normal electrons. A thin layer of La0.7Ca0.3MnO3 was used as the source of spin polarised carriers. The micro-bridge was formed on the DyBa2Cu3O7-δ thin film by photo-lithograph...