Magnetization dynamics of electron–impurity systems at paramagnetic resonance

ELECTRON PARAMAGNETIC RESONANCE (EPR) SPECTROSCOPY AND GEOCHEMISTRY IN TIN EXPLORATION AT RENISON, TASMANIA AUSTRALIA

Rock powder of dolomite samples from the Renison mine area of Tasmania, Australia were analyzed by electron paramagnentic resonance spectroscopy (EPR), Atomic Absorption and Mass Spectrometer to identify alteration related to mineralisation. The least-altered dolomite samples, which are not effected by circulation of diagenetic and hydrothermal fluids are characterised by low Mn and Fe and ...

Electron Paramagnetic Resonance Studies of Polymer Chain Dynamics in Solution

Rotational dynamics of phospholamban determined by multifrequency electron paramagnetic resonance.

We have used multifrequency electron paramagnetic resonance to define the multistate structural dynamics of an integral membrane protein, phospholamban (PLB), in a lipid bilayer. PLB is a key regulator of cardiac calcium transport, and its function requires transitions between distinct states of intramolecular dynamics. Monomeric PLB was synthesized with the TOAC spin label at positions 11 (in ...

Paramagnetic Resonance of Metallobiomolecules

X-ray magnetic circular dichroism XMCD is the difference in absorption of leftand right-circularly polarized x-rays by a magnetized sample. Although MCD with x-rays is only about 15 years old, the physics is essentially the same as for UV-visible MCD that has been known since 1897. For (bio)inorganic chemists and materials scientists, XMCD has the advantage of elemental specificity that comes w...

Electron Paramagnetic Resonance

where E0 is the energy level without any external magnetic field B = B0êz. Again, g denotes the g factor[5]. For induced transitions, the selection rule is ∆ms = ±1. For unpaired electrons, however, this selection rule is observed for all transitions, as S = 12 and, hence, ms ∈ {− 12 , 2}. The previous formulas are based on the assumption that the response of the material on the external magnet...