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Related papers: Magnetic Excitations in NpCoGa5

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We show results on the vortex core dissipation through current-voltage measurements under applied pressure and magnetic field in the superconducting phase of CeCoIn$_5$. We find that as soon as the system becomes superconducting, the vortex…

Superconductivity · Physics 2015-06-03 T. Hu , H. Xiao , T. A. Sayles , M. Dzero , M. B. Maple , C. C. Almasan

Magnetic fluctuations in the molecular-intercalated FeSe superconductor Li{x}(ND2){y}(ND3){1-y}Fe2Se2 (Tc = 43K) have been measured by inelastic neutron scattering from a powder sample. The strongest magnetic scattering is observed at a…

We use neutron scattering, to study magnetic excitations in crystals near the ideal superconducting composition of FeTe$_{0.5}$Se$_{0.5}$. Two types of excitations are found, a resonance at (0.5, 0.5, 0) and incommensurate fluctuations on…

Inelastic neutron scattering measurements on single crystals of superconducting BaFe1.84Co0.16As2 reveal a magnetic excitation located at wavevectors (1/2 1/2 L) in tetragonal notation. On cooling below TC, a clear resonance peak is…

Motivated by the premise that superconductivity in iron-based superconductors is unconventional and mediated by spin fluctuations, an intense research effort has been focused on characterizing the spin excitation spectrum in the…

The low-energy magnetic excitations of the noncentrosymmetric heavy-fermion superconductor CePt3Si have been measured with inelastic neutron scattering on a single crystal. Kondo-type spin fluctuations with an anisotropic wave vector…

Strongly Correlated Electrons · Physics 2008-12-01 B. Fak , S. Raymond , D. Braithwaite , G. Lapertot , J. -M. Mignot

This paper, I, presents new results from neutron inelastic scattering experiments on single crystals of UPd2Al3. The focus is on the experimental position whilst the sequel, II, advances theoretical perspectives. We present a detailed and…

Strongly Correlated Electrons · Physics 2007-05-23 A. Hiess , N. Bernhoeft , N. Metoki , G. H. Lander , B. Roessli , N. K. Sato , N. Aso , Y. Haga , Y. Koike , T. Komatsubara , Y. Onuki

One challenge in condensed-matter physics is to unravel the interplay between magnetism and superconductivity in copper oxides with a high critical temperature (Tc). Kang et al. claim to have revealed a quantum phase transition from the…

Condensed Matter · Physics 2007-05-23 P. K. Mang , S. Larochelle , M. Greven

We use inelastic neutron scattering to study the low energy spin excitations in moderately doped non-superconducting Fe$_{1.01}$Te$_{0.72}$Se$_{0.28}$. The spin excitations in this system contain components near (0.5,0,0) and (0.5,0.5,0) in…

Strongly Correlated Electrons · Physics 2011-12-07 Songxue Chi , J. A. Rodriguez-Rivera , J. W. Lynn , Chenglin Zhang , D. Phelan , D. K. Singh , R. Paul , Pengcheng Dai

Inelastic neutron scattering was used to study the low energy magnetic excitations of the ferromagnetic superconductor UGe$_{2}$. The ferromagnetic fluctuations are of Ising nature with a non-conserved magnetization and have an intermediate…

Strongly Correlated Electrons · Physics 2009-11-10 S. Raymond , A. Huxley

This paper provides an analysis of neutron inelastic scattering experiments on single crystals of UPd2Al3. The emphasis is on establishing robust, general, inferences on the joint antiferromagnetic-superconducting state which characterises…

Strongly Correlated Electrons · Physics 2008-07-09 N. Bernhoeft , A. Hiess , N. Metoki , G. H. Lander , B. Roessli

Inelastic neutron scattering experiments were performed to investigate the crystalline electric field (CEF) excitations of Nd3+ (J = 9/2) in the iron pnictide NdFeAsO. The crystal field level structures for both the high-temperature…

Superconductivity · Physics 2014-01-08 Y. Xiao , M. Zbiri , R. A. Downie , J. -W. G. Bos , Th. Brueckel , T. Chatterji

Substitutions at the Mn-site of the charge-ordered Pr0.5Ca0.5MnO3 manganite is an effective way to induce abrupt jumps on the magnetic field driven magnetization curve. In order to get new insights into the origin of this remarkable…

In this paper detailed neutron scattering measurements of the magnetic excitation spectrum of CuCrO$_2$ in the ordered state below $T_{\rm{N1}}=24.2$ K are presented. The spectra are analyzed using a model Hamiltonian which includes…

We report neutron scattering measurements of critical magnetic excitations in the weakly ferromagnetic superconductor UCoGe. The strong non-Landau damping of the excitations we observe, although unusual has been found in another related…

Strongly Correlated Electrons · Physics 2015-05-30 C. Stock , D. A. Sokolov , P. Bourges , P. H. Tobash , K. Gofryk , F. Ronning , E. D. Bauer , K. C. Rule , A. D. Huxley

High-temperature superconductivity in both the copper-oxide and the iron-pnictide/chalcogenide systems occurs in close proximity to antiferromagnetically ordered states. Neutron scattering has been an essential technique for characterizing…

Superconductivity · Physics 2013-12-04 John M. Tranquada , Guangyong Xu , Igor A. Zaliznyak

Inelastic neutron scattering measurements were performed on single crystals of the antiferromagnetic compound Mn5Si3 in order to investigate the relation between the spin dynamics and the magneto-thermodynamic properties. It is shown that…

Materials Science · Physics 2018-06-27 N. Biniskos , K. Schmalzl , S. Raymond , S. Petit , P. Steffens , J. Persson , T. Brueckel

Single crystal neutron diffraction, inelastic neutron scattering and electron spin resonance experiments are used to study the magnetic structure and spin waves in Pb$_2$VO(PO$_4$)$_2$, a prototypical layered $S=1/2$ ferromagnet with…

Polarized neutron inelastic scattering experiments have been carried out in the quasi-1D Ising-like antiferromagnet TlCoCl$_3$. We observed the longitudinal magnetic fluctuation $S_{zz} (Q, \omega)$ for the spin-wave excitation continuum,…

Strongly Correlated Electrons · Physics 2009-11-11 A. Oosawa , K. Kakurai , Y. Nishiwaki , T. Kato

A detailed inelastic neutron scattering study of the high temperature superconductor $\rm YBa_2Cu_3O_{6.85}$ provides evidence of new resonant magnetic features, in addition to the well known resonant mode at 41 meV: (i) a commensurate…

Superconductivity · Physics 2007-05-23 S. Pailhes , Y. Sidis , P. Bourges , V. Hinkov , A. Ivanov , C. Ulrich , L. P. Regnault , B. Keimer