1. Introduction.................................................................. 360 2. The hindered methyl
group....................................................... 360 2.1. The rotational eigenstates and the tunnelling …

The low level signals from cryogenic sensors and transducers are usually carried to the
electronic signal conditioning and data handling systems at ambient temperatures by long …

A new, simple NMR dispersion method to study and disentangle mixed Zeeman and dipolar
NMR lines is described and used for absolute dipolar polarization measurements. A …

We introduce a novel approach to study the dielectric permittivity of spin crossover (SCO)
molecular materials using a radio frequency (RF) resonant tunnel diode oscillator (TDO) …

We report the design and operation of a versatile tunnel diode oscillator for high sensitivity
(50 ppb) measurements of the magnetic susceptibility of samples over a wide temperature …

Using a new type of NMR dispersion spectrometer we have made an extensive study of the
tunnelling induced nuclear dipolar polarization effect or Haupt effect in lithium acetate single …

A sol-gel method for preparing superconducting powders by alkoxy derived materials is
described. The Bi 1.6 Pb 0.4 Sr 2 Ca 2 Cu 3 O 10 samples were obtained from a solution of …

The newly discovered iron based superconductors have captivated the attention of the
scientific community due to the unusual mechanism behind their superconductivity and their …

A few types of resonant circuits and probes are described which make possible the
observation of pure absorptive or dispersive NMR signals with a typical marginal oscillator …

Molecular rotation, libration and the associated quantum tunnelling reorientation
phenomena are described, in particular for CH 3-groups. Four ranges of tunnel frequencies …