نتایج جستجو برای: odd electron
تعداد نتایج: 331096 فیلتر نتایج به سال:
We study a strong f-electron localization effect on the surface state of generic topological Kondo insulator (TKI) system by performing mean-field theoretic (MFT) calculation within framework periodic Anderson model (PAM) using slave boson technique. The metallicity, together with bulk insulation, requires this type localization. A key distinction between states in conventional and is that, alo...
We report an extensive photoelectron-spectroscopy study of size-selected Crn 2 ~n52–70! clusters. Evenodd alternations are observed for the small Crn clusters and their electron affinities. The spectra of clusters with an even number of atoms show less density of states near the threshold, while those with odd clusters show more complex features. A dimer growth path found in a previous theoreti...
µ → eγ and µ → 3e processes with polarized muons and supersymmetric grand unified theories Abstract µ + → e + γ and µ + → e + e + e − processes are analyzed in detail with polarized muons in supersymmetric grand unified theories. We first present Dalitz plot distribution for µ + → e + e + e − decay based on effective La-grangian with general lepton-flavor-violating couplings and define various ...
We have employed tilted-field magneto-transport measurements of the energy gap for the odd-integer quantized Hall states at Landau level filling factors ν = 1,3 and 5 to determine the spin of thermally excited quasielectron-quasihole pairs. At ν = 1 our data show that as many as 7 electron spin flips accompany such excitations, while at ν = 3 and 5 apparently only a single spin flips. These res...
Cryogenic molecular beam experiments show that the ferroelectric dipole moments of small niobium clusters with an even number of valence electrons n are typically greater than those with odd n. This is verified in alloy clusters NbNXM where X = Al, Au, O, Mn, Fe, and Co; N ≤ 100;M ≤ 3. Like in superconducting alloys, Mn doping quenches the effect while Al and Au enhance it, suggesting a relatio...
in this research we have studied the effect of some transition-metals (cu, ag and au) substitutions on two-electron reduction potential of flavins by application of dft method. all geometries have been optimized at blyp level of theory and “6-31+g** + lanl2dz” mixed basis set. the frequency job at the same method and basis sets has been performed to obtain gibbs free energy of compounds. it h...
Let G(V,E) be a graph with p vertices and q edges. A graph G is said to have an odd mean labeling if there exists a function f : V (G) → {0, 1, 2,...,2q - 1} satisfying f is 1 - 1 and the induced map f* : E(G) → {1, 3, 5,...,2q - 1} defined by f*(uv) = (f(u) + f(v))/2 if f(u) + f(v) is evenf*(uv) = (f(u) + f(v) + 1)/2 if f(u) + f(v) is odd is a bijection. A graph that admits an odd mean labelin...
We provide a detailed analysis of the supersymmetric tri–lepton signals for sparticle searches at the Tevatron in the minimal supersymmetric standard model with general CP–violating phases but without flavor mixing among sfermions of different generation. The stringent experimental constraints on the CP–violating phases from the electron and neutron electric dipole moments are included in the a...
The spin dynamics of Cr8 Mn, a nine-membered antiferromagnetic (AF) molecular nanomagnet, are investigated. Cr8 Mn is a rare example of a large odd-membered AF ring, and has an odd-number of 3d-electrons present. Odd-membered AF rings are unusual and of interest due to the presence of competing exchange interactions that result in frustrated-spin ground states. The chemical synthesis and struct...
Parity and time invariance violating (P, T-odd) nuclear forces produce P, T-odd nuclear moments. In turn, these moments can induce electric dipole moments (EDMs) in atoms through the mixing of electron wavefunctions of opposite parity. The nuclear EDM is screened by atomic electrons. The EDM of an atom with closed electron subshells is induced by the nuclear Schiff moment. Previously the intera...
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