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    Itinerant magnetic excitations in antiferromagnetic CaFe2As2 

    Diallo, S. O.; Antropov, V. P.; Perring, T.G.; Broholm, C.; Pulikkotil, J. J.; Ni, N.; Bud'ko, S.L.; Canfield, P.C.; Kreyssig, A.; Goldman, A. I.; McQueeney, R. J. (American Physical Society, 2009-05-08)
    Neutron scattering measurements of the magnetic excitations in single crystals of antiferromagnetic CaFe2As2 reveal steeply dispersive and well-defined spin waves up to an energy of ~100 meV. Magnetic excitations above 100 ...
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    From cooperative paramagnetism to Neel order in Y2Ru2O7: neutron scattering measurements 

    van Duijn, J.; Hur, N.; Taylor, J. W.; Qiu, Y.; Huang, Q.Z.; Cheong, S.-W.; Broholm, C.; Perring, T.G. (American Physical Society, 2008-01-01)
    Spin correlations in the pyrochlore antiferromagnet Y2Ru2O7 with Curie-Weiss temperature ΘCW* - 1100 K and critical temperature TN = 77 K were examined through neutron scattering. For TN < T < ΘCW / 3 the data show spin ...
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    Central mode and spin confinement near the boundary of the superconducting phase in YBa2Cu3O6.353 (Tc=18 K) 

    Birgeneau, R. J.; Broholm, C.; Liang, R.; Yamani, Z.; Bonn, D.; Tun, Z.; Chung, J.-H.; Hardy, W. N.; Stock, C.; Buyers, W.J.L. (American Physical Society, 2006-03-01)
    We have mapped the neutron scattering spin spectrum at low energies in YBa2Cu3O6.353 (Tc=18 K), where the doping ~0.06 is near the critical value (pc=0.055) for superconductivity. No coexistence with long-range-ordered ...
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    Phase diagram and spin Hamiltonian of weakly-coupled anisotropic S=½ chains in CuCl2·2((CD3)2SO) 

    Chen, Y.; Stone, M. B.; Kenzelmann, M.; Batista, C. D.; Reich, D.H.; Broholm, C. (American Physical Society, 2007-06-01)
    Field-dependent specific heat and neutron scattering measurements were used to explore the antiferromagnetic S=½ chain compound CuCl2·2((CD3)2SO). At zero field the system acquires magnetic long-range order below TN=0.93 ...
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    S=½ chain in a staggered field: high-energy bound-spinon state and the effects of a discrete lattice 

    Kenzelmann, M.; Batista, C. D.; Chen, Y.; Broholm, C.; Reich, D.H.; Park, S.; Qiu, Y. (American Physical Society, 2005-03-01)
    We report an experimental and theoretical study of the antiferromagnetic S=½ chain subject to uniform and staggered fields. Using inelastic neutron scattering, we observe a bound-spinon state at high energies in the linear ...
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    Spin resonance in the d-wave superconductor CeCoIn5 

    Stock, C.; Broholm, C.; Hudis, J.; Kang, H. J.; Petrovic, C. (American Physical Society, 2008-02-29)
    Neutron scattering is used to probe antiferromagnetic spin fluctuations in the d-wave heavy fermion superconductor CeCoIn5 (Tc=2.3 K). Superconductivity develops from a state with slow (ℎΓ=0.3±0.15 meV) commensurate ...
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    Spinons in the strongly correlated copper oxide chains in SrCuO2 

    Broholm, C.; Perring, T.G.; Takagi, H.; Frost, C. D.; Zaliznyak, L.A.; Woo, H. (American Physical Society, 2004-08-20)
    We have investigated the spin dynamics in the strongly correlated chain copper oxide SrCuO2 for energies up to ≥0.6 eV using inelastic neutron scattering. We observe a gapless continuum of magnetic excitations, which is ...
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    Inhomogeneous level splitting in Pr2-xBixRu2O7 

    van Duijn, J.; Kim, K. H.; Hur, N.; Adroja, D.; Adams, M. A.; Huang, Q.Z.; Jaime, M.; Cheong, S.-W.; Broholm, C.; Perring, T.G. (American Physical Society, 2005-05-06)
    We report that Bi doping drives Pr2-xBixRu2O7 from an antiferromagnetic insulator (x=0) to a metallic paramagnet (x≈1) with a broad low T maximum in C/T. Neutron scattering reveals local low energy spin excitations (ℎω≈1 ...

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    AuthorBroholm, C. (8)Perring, T.G. (4)Batista, C. D. (2)Chen, Y. (2)Cheong, S.-W. (2)Huang, Q.Z. (2)Hur, N. (2)Kenzelmann, M. (2)Qiu, Y. (2)Reich, D.H. (2)... View MoreSubject
    neutron scattering (8)
    antiferromagnetic materials (6)Heisenberg model (4)neutron diffraction (4)spin dynamics (3)copper compounds (2)energy gap (2)magnetic moments (2)magnetic susceptibility (2)yttrium compounds (2)... View MoreDate Issued2005 (2)2008 (2)2004 (1)2006 (1)2007 (1)2009 (1)Has File(s)Yes (8)

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