Localized Magnetic States in Dilute Alloys

NUCLEAR MAGNETIC RESONANCE iN DILUTE ALLOYS

The experimental results concerning the electric field gradient and the local magnetic field around substitutional impurities in copper-based dilute alloys have been summarized. Comparing the experimental data with theoretical models we have come to the conclusion that only the first-order quadrupole wipe-out number characteristic of the asymptotic charge density oscillation around the impuriti...

Alloy states in dilute GaAs1-xNx alloys (x<1%)

Gap States in Dilute Magnetic Alloy Superconductors.

We study states in the superconducting gap induced by magnetic impurities using self-consistent quantum Monte Carlo with maximum entropy and formally exact analytic continuation methods. The magnetic impurity susceptibility has different characteristics for T0 & Tc0 and T0 * Tc0 (T0: Kondo temperature; Tc0: superconducting transition temperature) due to the crossover between a doublet and a sin...

Theory of magnetoresistance in films of dilute magnetic alloys

Theory of magnetoresistance in films of dilute magnetic alloys. Abstract Giordano measured the magnetoresistance of dilute magnetic alloys Au(Fe) films of different thickness. He explained the difference in the magnetic field saturation for different thickness by the magnetic surface anisotropy for the impurities has been suggested and evaluated earlier, which is due to spin-orbit scattering in...

Tunable exchange bias in dilute magnetic alloys – chiral spin glasses

A unidirectional anisotropy appears in field cooled samples of dilute magnetic alloys at temperatures well below the cusp temperature of the zero field cooled magnetization curve. Magnetization measurements on a Cu(13.5 at% Mn) sample show that this anisotropy is essentially temperature independent and acts on a temperature dependent excess magnetization, ΔM. The anisotropy can be partially or ...