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Related papers: Magnetic hyperfine field at \textit{s-p} impuritie…

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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

A great deal of experimental work using perturbed angular correlation (PAC) has succeed in measuring hyperfine fields in Ce diluted in metallic systems, thus allowing the determination of the local impurity moment at low temperatures.…

Strongly Correlated Electrons · Physics 2011-11-22 A. L. de Oliveira , C. M. Chaves , N. A. de Oliveira , A. Troper

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…

The hyperfine field $B_\text{hf}$ and the magnetic properties of the BaFe$_2$As$_2$ family are studied using the fully relativistic Dirac formalism for different types of substitution. The study covers electron doped…

Superconductivity · Physics 2016-12-21 Gerald Derondeau , Ján Minár , Hubert Ebert

The local magnetic moments and hyperfine magnetic fields (HFF) in the ordered alloys Fe_{15}Sn and Fe_{15}Si are calculated with the first-principles full-potential linear augmented plane wave (FP LAPW) method. The results are compared with…

Materials Science · Physics 2009-10-31 A. K. Arzhnikov , L. V. Dobysheva

Based on experimental data it is shown, for some chosen alloys and compounds of iron, that there is no one unique relationship between the 57Fe-site magnetic hyperfine field, Bhf, and the magnetic moment per Fe atom, m. Instead, the Bhf-m…

Materials Science · Physics 2010-01-09 S. M. Dubiel

The magnetic hyperfine field and electric-field gradient at isolated lanthanide impurities in an Fe host lattice are calculated from first principles, allowing for the first time a qualitative and quantitative understanding of an…

Strongly Correlated Electrons · Physics 2009-11-11 Doru Torumba , Stefaan Cottenier , Veerle Vanhoof , Michel Rots

The fluorescence spectra of a sub-micron atomic cesium vapor layer observable under resonant excitation on D2 line have been studied in the presence of an external magnetic field. Substantial changes in amplitudes and frequency positions of…

Atomic Physics · Physics 2007-05-23 Aram Papoyan , David Sarkisyan , Kaspars Blush , Marcis Auzinsh , Daniel Bloch , Martial Ducloy

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

The M\"{o}ssbauer Effect(ME) is frequently used to investigate magnetically ordered systems. One usually assumes that the magnetic order induces a hyperfine magnetic field, $B_{hyperfine}$, at the ME active site. This is the case in the…

Strongly Correlated Electrons · Physics 2015-05-14 D. Coffey , M. DeMarco , P. C. Ho , M. B. Maple , T. Sayles , J. W. Lynn , Q. Huang , S. Toorongian , M. Haka

In an external magnetic field B, the spins of the electron and hole will precess in effective fields b_e + B and b_h + B, where b_e and b_h are random hyperfine fields acting on the electron and hole, respectively. For sparse "soft" pairs…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 R. C. Roundy , M. E. Raikh

This work presents electronic and magnetic properties of selected members in the cubic Laves phase series Nd1-xPrxCoNi and Ce0.25Pr0.75CoNi, together with the corresponding binary compositions (NdCo2, NdNi2, PrCo2, PrNi2, CeCo2, CeNi2),…

Magnetic hyperfine field at Cu isotopes as impurities in Fe were recently measured at low temperature. A model to explain these experimental results is proposed. The diluted Cu impurities in the ferromagnetic Fe host are described by an…

Nuclear Experiment · Physics 2012-07-19 A. L. de Oliveira , C. M. Chaves , N. A. de Oliveira , A. Troper

We report the determination of the magnetic phase diagram of the heavy fermion metal YbRh\textsubscript{2}Si\textsubscript{2} in magnetic fields up to 70\,mT applied perpendicular to the crystallographic c-axis. By a combination of heat…

Strongly Correlated Electrons · Physics 2025-05-14 Jan Knapp , Lev V. Levitin , Jan Nyeki , Brian Cowan , John Saunders , Manuel Brando , Christoph Geibel , Cornelius Krellner , Kristin Kliemt

In order to find out if magnetic impurities can mediate interactions between quasiparticles in metals, we have measured the effect of a magnetic field B on the energy distribution function f(E) of quasiparticles in two silver wires driven…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. Anthore , F. Pierre , H. Pothier , D. Esteve

Using ab initio methods based on density functional theory, the electronic and magnetic structure of layered hexagonal NbSe$_{2}$ is studied. In the case of single-layer NbSe$_{2}$ it is found that, for all the functionals considered, the…

Materials Science · Physics 2020-05-14 Simon Divilov , Wen Wan , Paul Dreher , Miguel M. Ugeda , Félix Ynduráin

A recent measurement of the hyperfine splitting in the ground state of Li-like $^{209}$Bi$^{80+}$ has established a "hyperfine puzzle" -- the experimental result exhibits a 7$\sigma$ deviation from the theoretical prediction [J. Ullmann et…

Electronic structure Korringa-Kohn-Rostoker calculations for the $\sigma$-phase in Fe$_{100-x}$V$_x$ were performed in compositional range of its occurance ($\sim 34 \le x \le \sim 65$). Fe and V magnetic moments and hyperfine fields were…

Strongly Correlated Electrons · Physics 2012-01-06 Jakub Cieslak , Janusz Tobola , Stanislaw M. Dubiel

Measuring the hyperfine structure (HFS) of long-lived $^3P_2$ states of divalent atoms may offer the opportunity of extracting relatively unexplored nuclear magnetic octupole and electric hexadecapole moments. Here, using relativistic…

Atomic Physics · Physics 2009-11-13 K. Beloy , A. Derevianko , W. R. Johnson

High-entropy perovskites (HEPs) offer a unique platform for exploring magnetic phenomena arising from extreme B-site chemical disorder. In Sm(M7)O$_3$, where there are 7 cations in equal amounts at the B-site; M = Ti, Cr, Mn, Fe, Co, Ni,…

Materials Science · Physics 2026-04-10 R. K. Dokala , M. Geers , P. Nordblad , R. Clulow , R. Mathieu
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