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We present a comparison between accurate \textit{ab initio} calculations and a high-quality experimental data set (1986-2002) of electric-field gradients and magnetic hyperfine fields of Cd at different sites on Ni, Cu, Pd and Ag surfaces.…

Materials Science · Physics 2007-05-23 S. Cottenier , V. Bellini , M. Cakmak , F. Manghi , M. Rots

Assemblies of plasmonic nanoparticles (NPs) support hybridized modes of localized surface plasmons (LSPs), which delocalize in geometrically well-ordered arrangements. Here, the hybridization behavior of LSPs in geometrically completely…

We develop a microscopic theory of the single impurity Kondo effect on a metallic surface. We calculate the hybridization energies for the Anderson Hamiltonian of a magnetic impurity interacting with surface and bulk states and show that,…

Materials Science · Physics 2009-11-10 Chiung-Yuan Lin , A. H. Castro Neto , B. A. Jones

We study the formation of local magnetic moments and magnetic hyperfine fields at an \textit{s-p} impurity diluted in intermetallic Laves phases compounds $R$Ni$_{2}$ ($R$ = Nd, Sm, Gd, Tb, Dy) at finite temperatures. We start with a clean…

Strongly Correlated Electrons · Physics 2015-12-09 A. L. de Oliveira , C. M. Chaves , N. A. de Oliveira , A. Troper

We study impurity bound states and impurity-induced order in the superconducting state of LiFeAs within a realistic five-band model based on the band structure and impurity potentials obtained from density functional theory (DFT). In…

Superconductivity · Physics 2014-03-11 Maria N. Gastiasoro , P. J. Hirschfeld , Brian M. Andersen

A new value for the hyperfine magnetic field of copper impurities in iron is obtained by combining resonance frequencies from experiments involving {\beta}-NMR on oriented nuclei on 59-Cu, 69-Cu, and 71-Cu with magnetic moment values from…

We discuss localization of the path integral for supersymmetric gauge theories with an R-symmetry on Hermitian four-manifolds. After presenting the localization locus equations for the general case, we focus on backgrounds with S^1 x S^3…

High Energy Physics - Theory · Physics 2015-06-19 Benjamin Assel , Davide Cassani , Dario Martelli

From the magnetic response of Nb-cylinders to time-varying fields the AC-conductivity, $\sigma'-i\sigma''$, and the critical current density $J_c^s$ are determined above the upper critical field $H_{c2}$. The field dependencies of $\sigma'$…

Superconductivity · Physics 2007-05-23 Sara Casalbuoni , Lars von Sawilski , Jürgen Kötzler

Recent experimental results for the magnetic hyperfine field B_{\rm hf} at the nuclei of \textit{s-p} impurities such as ${}^{119}$Sn in intermetallic Laves phases RM_2 (R = Gd, Tb, Dy, Ho, Er; M = Fe, Co) and ${}^{111}$Cd in RCo_{2}, the…

Strongly Correlated Electrons · Physics 2015-03-19 C. M. Chaves , A. L. de Oliveira , N. A. de Oliveira , A. Troper

We report on combined resistance and magnetic measurements in a hybrid structure (HS) of randomly distributed anisotropic CoPt magnetic nanoparticles (MN) embedded in a 160 nm Nb thick film. Our resistance measurements exhibited a sharp…

Superconductivity · Physics 2009-11-10 D. Stamopoulos , M. Pissas , V. Karanasos , D. Niarchos , I. Panagiotopoulos

The transferred hyperfine interaction between nuclear and electron spins in an heavy fermion material depends on the hybridization between the $f$-electron orbitals and those surrounding a distant nucleus. In CeMIn$_5$ (M=Rh, Ir, Co), both…

Strongly Correlated Electrons · Physics 2021-08-04 P. Menegasso , J. C. Souza , I. Vinograd , Z. Wang , S. P. Edwards , P. G. Pagliuso , N. J. Curro , R. R. Urbano

The flow in a fixed direction on a translation surface S determines a decomposition of S into closed invariant sets, each of which is either periodic or minimal. We study this decomposition for translation surfaces in the hyperelliptic…

Dynamical Systems · Mathematics 2013-02-15 Kathryn Lindsey

We re-analyze Nuclear Magnetic Resonance (NMR) spectra observed at low temperatures and high magnetic fields in the field-induced B-phase of CeCoIn5. The NMR spectra are consistent with incommensurate antiferromagnetic order of the Ce…

Superconductivity · Physics 2011-04-08 Nicholas J. Curro , Ben-Li Young , Ricardo Urbano , Matthias J. Graf

We calculate the upper critical field, Hc2(T), due to the orbital pair breaking in disordered superconductors without inversion symmetry. Differences from the usual centrosymmetric case are highlighted. The linearized gap equations in…

Superconductivity · Physics 2009-11-13 K. V. Samokhin

We study systems of multiple interacting quantum impurities deposited on a metallic surface in a 3D host. For the real-space two-impurity problem, using numerical renormalization group calculations, a rich range of behavior is shown to…

Strongly Correlated Electrons · Physics 2015-06-16 Andrew K. Mitchell , Philip G. Derry , David E. Logan

We consider the magnetic-field dependent spatial magnetization pattern around a general impurity embedded in a Heisenberg antiferromagnet using both an analytical and a numerical spin wave approach. The results are compared to quantum Monte…

Strongly Correlated Electrons · Physics 2012-03-15 Sergey Shinkevich , Olav F. Syljuåsen , Sebastian Eggert

The influence of dilution with non--magnetic impurities on the order in the ground state of the $S=1/2$ Heisenberg antiferromagnet is investigated by Quantum Monte Carlo simulations. Data of the spin correlation functions and thermodynamic…

Condensed Matter · Physics 2007-05-23 J. Behre , S. Miyashita

We consider the effects of magnetic impurities on the surface of superconducting Cu doped $Bi_{2}Se_{3}$ in the odd parity pairing phase which support topologically protected Majorana fermions surface states with linear spectrum. We show…

Superconductivity · Physics 2013-01-11 Ting-Pong Choy , K. T. Law , Tai-Kai Ng

In this paper we investigate the form of calibrated M5-branes in the presence of a nonvanishing 3-form field H. We discuss the influence of the H-field on the deformation of supersymmetric n-cycles (in particular SLAG submanifolds in R^n).…

High Energy Physics - Theory · Physics 2009-10-07 D. Lust , A. Miemiec

The hyperfine interactions at the uranium site in the antiferromagnetic USb2 compound were calculated within the density functional theory (DFT) employing augmented plane wave plus local orbital (APW+lo) method. We investigated the…

Strongly Correlated Electrons · Physics 2007-05-23 A. Fathi , S. Jalali Asadabadi , M. G. Rad , H. Amini
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