We report on the measurement of the Rashba-type spin splitting of the Shockley surface state on Cu(111) by spinand angle-resolved photoemission at room temperature. Along the spatial direction expected for a Rashba-type effect the measured spin splitting corresponds to what has previously been reported by first principle calculations which were verified by high resolution ARPES using low temper...

We motivate the study of hard-core bosons in an external magnetic eld by describing anyons either as fermions or hard-core bosons with gauge-ux attached to them. We brieey review earlier attempts to address this problem. We show why quantum Hall eeect (QHE) for hard-core bosons can occur in the thermodynamic limit and use a variational trial wavefunction approach to identify the lling factors w...

The high-field dependence of the galvanomagnetic properties of Fe1.9 V1.1Al compounds was measured in the temperature range from 2.5 to 100 K and in magnetic fields of up to 15 T. We observe that the Hall coefficient decreases with magnetic field, increasingly at low temperatures (2.5–15 K). The magnetoresistivity is negative, but no saturation occurs at fields of up to 15 T. The observed pecul...

We have used resistivity measurements to study the magnetic phase diagram of the itinerant antiferromagnet FeGe 2 in the temperature range from 0.3– 300 K in magnetic fields up to 16 T. In contrast to theoretical predictions, the incommensurate spin density wave phase is found to be stable at least up to 16 T, with an estimated critical field µ 0 H c of ∼ 30 T. We have also studied the low temp...

In this paper we review recent theoretical results for transport in a one-dimensional (1d) Luttinger liquid. For simplicity, we ignore electron spin, and focus exclusively on the case of a single-mode. Moreover, we consider only the effects of a single (or perhaps several) spatially localized impurities. Even with these restrictions, the predicted behavior is very rich, and strikingly different...

We report on the preparation of the first complete extreme temperature Hall sensor. This means that the extreme-temperature magnetic sensitive semiconductor structure is built-in an extreme-temperature package especially designed for that purpose. The working temperature range of the sensor extends from -270 °C to +300 °C. The extreme-temperature Hall-sensor active element is a heavily n-doped ...

The optimal temperatures reported for maximum production of penicillin by Penicillium chrysogenum have varied between 23 C and 28 C (Peterson, 1946; Johnson, 1946; Calam et al., 1951). These temperatures were established by comparing the yields obtained when the mold was held at various temperatures for the entire fermentation. Calam et al. (1951) obtained best yields at about 25 C. The work re...

We investigate the existence of the pure spin ratchet effect in a dissipative quasi-one-dimensional system with Rashba spin-orbit interaction. The system is additionally placed into a transverse uniform stationary in-plane magnetic field. It is shown that the effect exists at low temperatures and pure spin currents can be generated by applying an unbiased ac driving to the system. An analytical...

Some planar systems display universal magnetic behavior at low temperatures, e.g. either superconductivity or quantization of the Hall conductance. These are the phenomena that traditionally attracted the most interest among researchers. At the same time, nanotechnology inspires us to examine complementary, albeit still strongly quantum, regimes of operation, in which electronic properties depe...