Zur Quanten-Struktur der Meßkörper

On the Quantum Structure of Measuring Bodies “Planckions” are the biggest possible elementary particles and the smallest possible classical measuring bodies.     

Die Strahlungs-Temperatur bewegter Körper

The Radiation Temperature of Moving Bodies The comparison of the temperatures of two bodies which are in a relative motion is possible by the black-body-radiation of these bodies, unambiguously. Then, Planck's transformation law for the temperature is resulting by Einstein's theory of the transversal Doppler-effect and the aberration and by the laws of heat radiation without additional hypotheses. - Our argument is based on the transformation formulas of the specific radiation intensities which are proved by M. v. Laue (1943) in his relativistic deduction of Wien's law.     

Die magnetische Struktur und das magnetische Verhalten von ErFe2: Eine Neutronenbeugungsuntersuchung

The magnetic structure of ErFe₂ has been determined from neutron diffraction measurements on a powderd sample in the temperature region between 4.2°K and 700°K. ErFe₂ exhibits ferrimagnetic ordering below 600°K with the Er- and Fe-ions being antiparallel oriented. The separate sublattice magnetisations of the Er- and Fe-sublattices have been determined. The saturation moments at 4.2°K have been found to beμ(Fe)=1.97μ _B andμ(Er)=8.47μ _B. The coupling between the two sublattices is by an antiparallel spin-spin interaction of the Er and Fe ions. The temperature dependence of the sublattice magnetization of the Er-ions is explained by a separation into two parts: an induced magnetization at high temperatures and a spontaneous magnetization at lower temperatures.     

Die magnetische Suszeptibilität von Bi und Bi-Sb-Legierungen

We have measured and discussed the field independent magnetic properties of Bi_1-xSb_x alloys for the concentration range 0≦x≦0,4. The observed transitions from the semimetal to semiconductor phase at about 7 At.-% Sb and from the semiconductor to semimetal phase at about 22 At.-% Sb are very well defined. Measurements on the semiconductor phase at low temperatures allowed us to separate the lattice componentχ _G of the susceptibility from that due to the charge carriersχ _L. It is therefore possible to estimate these two components for pure Bi. The results show thatχ _G is strongly diamagnetic in all crystall directions and thatχ _L is paramagnetic. An estimate of the charge carrier susceptibility based on a modified Pauli Landau model is found to give an order of magnitude agreement with the experimental results. The deviation can be attributed to a nonparabolic conduction band. The dependence of the energy gapΔE on the Sb concentration has also been determined.     

Die magnetische Suszeptibilität flüssiger Übergangsmetallegierungen

Investigations on the magnetic susceptibility of alloys of the transition metals Fe, Co and Ni with the normal metals Au, (Cu), Zn, Ga and Ge were performed in the liquid state over the whole concentration range. These alloys show complicated phase diagrams, so that in the solid state a systematic investigation over the whole concentration range is not possible. The results are discussed with the existing models for the transition metal rich side and for impurities of transition metal in normal metals. A connection between the susceptibility and the density of states has been found, which allows to explain the behaviour of the susceptibility over the whole concentration range. The measurements of the susceptibility give some information about shape and position of the density of states on alloying.