The local magnetic properties of Ag12TM and Pd12TM clusters with Ih symmetry (TM = Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Y, Zr, Nb, Mo, Tc, Ru, Rh, and Pd have been systematically studied with the density functional formalism, and the Kohn-Sham equation is solved self-consistently with the discrete variational method (DVM). A special attention is paid to the comparisons of local magnetism for impuriti...

Neutron elastic and inelastic scattering measurements have been performed in order to investigate the spin structure and the magnetic excitations in the impurity-induced antiferromagnetic ordered phase of the doped spin gap system Tl(Cu 1−x Mg x)Cl 3 with x = 0.03. The magnetic Bragg reflections indicative of the ordering were observed at Q Q Q = (h, 0, l) with integer h and odd l below T N = 3...

The recently observed properties of quasiparticle resonant states near impurities on the surface of superconducting Bi2Sr2CaCu2O8+δ demonstrate that in-plane Andreév processes are either absent or phase-incoherent. Analysis of the spectral and spatial details of the electronic structure near a Zn impurity also suggest an effective magnetic component of the impurity potential. Further experiment...

We consider a magnetic impurity which interacts by hybridization with a system of weakly correlated electrons and determine the energy of the ground state by means of an 1/Nf expansion. The correlations among the conduction electrons are described by a Hubbard Hamiltonian and are treated to lowest order in the interaction strength. We find that their effect on the Kondo temperature, TK, in the ...

The ohmic decay of magnetic fields confined within the crust of neutron stars is considered by incorporating both the effect of neutron star cooling and the effect of space-time curvature produced by the intense gravitational field of the star. For this purpose a stationary and static gravitational field has been considered with the standard as well as the accelerated cooling models of neutron ...

Magnetic and nonmagnetic impurities in correlated electron systems are an important probe of the properties of the host material. There is large and growing body of research on impurities in high-temperature superconductors.[1, 2] The refinement of experimental techniques probing local properties stimulated the theoretical work on defects in those systems. The investigation of the effects of Zn...

We show that the conductance of Spin Field Effect Transistors (SPINFET) [Datta and Das, Appl. Phys. Lett., 56, 665 (1990)] is affected by a single (non-magnetic) impurity in the transistor’s channel. The extreme sensitivity of the amplitude and phase of the transistor’s conductance oscillations to the location of a single impurity in the channel is reminiscent of the phenomenon of universal con...

Electron – impurity scattering in the crust of neutron stars may be a relevant mechanism in delaying the cooling and in enhancing the decay of the pulsar’s magnetic field. Extending previous work, in the present note I investigate the physics of the interfaces between layers in the crust of an isolated neutron star. The calculations confirm the possible presence of high impurity concentrations ...

The Large Helical Device (LHD) and Wendelstein 7-X (W7-X, under construction) are experiments specially designed to demonstrate long pulse (quasi steady-state) operation, which is an intrinsic property of Stellarators and Heliotrons. Significant progress was made in establishment of high performance plasmas. A crucial point is the increasing impurity confinement towards high density as observed...