Neutron Scattering Group


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P. Abbamonte, A. Rusydi, S. Smadici, G. D. Gu, G. A. Sawatzky and D. L. Feng.
Spatially modulated 'Mottness' in La2-xBaxCuO4.
Nature Phys. 1, 155 (2005).

H. Cao, J. F. Li, D. Viehland and G. Y. Xu.
Fragile phase stability in (1-x)Pb(Mg1/3Nb2/3O3)-xPbTiO3 crystals: A comparison of [001] and [110] field-cooled phase diagrams.
Phys. Rev. B 73, 184110 (2006).

H. Cao, J. F. Li, D. Viehland, G. Y. Xu and G. Shirane.
Monoclinic Mc vs orthorhombic in [001] and [110] electric-field-cooled Pb(Mg1/3Nb2/3O3)-35%PbTiO3 crystals.
Appl. Phys. Lett. 88, 072915 (2006).

J. P. Castellan, B. D. Gaulin, H. A. Dabkowska, A. Nabialek, G. Gu, X. Liu and Z. Islam.
Two- and three-dimensional incommensurate modulation in optimally-doped Bi2Sr2CaCu2O8+d.
Phys. Rev. B 73, 174505 (2006).

S. V. Dordevic, C. C. Homes, G. D. Gu, W. Si and Y. J. Wang.
Effect of a magnetic field on the electron-boson spectral function of cuprate superconductors.
Phys. Rev. B 73, 132501 (2006).

G. Ehlers, J. S. Gardner, C. H. Booth, M. Daniel, K. C. Kam, A. K. Cheetham, D. Antonio, H. E. Brooks, A. L. Cornelius, S. T. Bramwell, J. Lago, W. Haussler and N. Rosov.
Dynamics of diluted Ho spin ice Ho2-xYxTi2O7 studied by neutron spin echo spectroscopy and ac susceptibility.
Phys. Rev. B 73, 174429 (2006).

T. Fennell, O. A. Petrenko, B. Fak, J. S. Gardner, S. T. Bramwell and B. Ouladdiaf.
Neutron scattering studies of the spin ices Ho2Ti2O7 and Dy2Ti2O7 in applied magnetic field.
Phys. Rev. B 72, 224411 (2005).

D. A. Fischer, A. R. Moodenbaugh, Q. Li, G. D. Gu, Y. M. Zhu, J. W. Davenport, D. O. Welch and H. B. Su.
Soft X-ray absorption spectroscopy of the MgB2 boron K edge in an MgB2/Mg composite.
Mod. Phys. Lett. B 20, 1207 (2006).

J. S. Gardner, A. L. Cornelius, L. J. Chang, M. Prager, T. Bruckel and G. Ehlers.
Spin dynamics in Ho2Ru2O7.
J. Phys.: Condens. Matter 17, 7089 (2005).

V. J. Ghosh, M. E. Hagen, W. J. Leonhardt, I. Zaliznyak, S. M. Shapiro and L. Passell.
Optimization of the HYSPEC design using Monte Carlo simulations.
In Proc. of ICANS-XVII, Santa Fe, NM, 2005, edited by (Los Alamos, LA-UR-06-3904, 2006), p. 984.

H. J. Grafe, N. J. Curro, M. Hucker and B. Buchner.
Nuclear-magnetic-resonance evidence for charge inhomogeneity in stripe ordered La1.8-xEu0.2SrxCuO4.
Phys. Rev. Lett. 96, 017002 (2006).

G. D. Gu, M. Hucker, Y. J. Kim, J. M. Tranquada, H. Dabkowska, G. M. Luke, T. Timusk, B. D. Gaulin, Q. Li and A. R. Moodenbaugh.
Crystal growth and superconductivity of (La1-xCax)2CaCu2O6+d.
J. Phys. Chem. Solids 67, 431 (2006).

G. D. Gu, M. Hucker, Y. J. Kim, J. M. Tranquada, Q. Li and A. R. Moodenbaugh.
Single-crystal growth and superconductivity of (La1-xSrx)2CaCu2O6+d.
J. Cryst. Growth 287, 318 (2006).

C. C. Homes, S. V. Dordevic, G. D. Gu, Q. Li, T. Valla and J. M. Tranquada.
Charge order, metallic behavior, and superconductivity in La2-xBaxCuO4 with x=1/8.
Phys. Rev. Lett. 96, 257002 (2006).

M. Hücker, M. von Zimmermann, R. Klingeler, S. Kiele, J. Geck, S. N. Bakehe, J. Z. Zhang, J. P. Hill, A. Revcolevschi, D. J. Buttrey, B. Buchner and J. M. Tranquada.
Unidirectional diagonal order and three-dimensional stacking of charge stripes in orthorhombic Pr1.67Sr0.33NiO4 and Nd1.67Sr0.33NiO4.
Phys. Rev. B 74, 085112 (2006).

M. Izquierdo, J. Avila, L. Roca, G. Gu and M. C. Asensio.
Polarization effects in photoemission disentangle the origin of the shadow bands in Bi-based superconductors.
Phys. Rev. B 72, 174517 (2005).

M. Izquierdo, S. Megtert, J. P. Albouy, J. Avila, M. A. Valbuena, G. Gu, J. S. Abell, G. Yang, M. C. Asensio and R. Comes.
X-ray diffuse scattering experiments from bismuth-based high-T-c superconductors.
Phys. Rev. B 74, 054512 (2006).

R. Klingeler, N. Tristan, B. Buchner, M. Hucker, U. Ammerahl and A. Revcolevschi.
Magnetization of hole-doped CuO2 spin chains in Sr14-xCaxCu24O41.
Phys. Rev. B 72, 184406 (2005).

Y. Kobayashi, T. S. Naing, M. Suzuki, M. Akimitsu, K. Asai, K. Yamada, J. Akimitsu, P. Manuel, J. M. Tranquada and G. Shirane.
Inelastic neutron scattering study of phonons and magnetic excitations in LaCoO3.
Phys. Rev. B 72, 174405 (2005).

Y. Kobayashi, T. S. Naing, M. Suzuki, M. Akimitsu, K. Asai, K. Yamada, J. Akimitsu, P. Manuel, J. M. Tranquada and G. Shirane.
Neutron scattering study of phonons in LaCoO3.
Physica B 378-80, 532 (2006).

R. S. Kumar, A. L. Cornelius, M. F. Nicol, K. C. Kam, A. K. Cheetham and J. S. Gardner.
Pressure-induced structural transitions in Tb-pyrochlore oxides.
Appl. Phys. Lett. 88, 031903 (2006).

A. Llobet, A. D. Christianson, W. Bao, J. S. Gardner, I. P. Swainson, J. W. Lynn, J. M. Mignot, K. Prokes, P. G. Pagliuso, N. O. Moreno, J. L. Sarrao, J. D. Thompson and A. H. Lacerda.
Novel Coexistence of Superconductivity with Two Distinct Magnetic Orders.
Phys. Rev. Lett. 95, 217002 (2005).

R. J. McQueeney, M. Yethiraj, W. Montfrooij, J. S. Gardner, P. Metcalf and J. M. Honig.
Investigation of the presence of charge order in magnetite by measurement of the spin wave spectrum.
Phys. Rev. B 73, 174409 (2006).

D. Reznik, L. Pintschovius, M. Ito, S. Iikubo, M. Sato, H. Goka, M. Fujita, K. Yamada, G. D. Gu and J. M. Tranquada.
Electron-phonon coupling reflecting dynamic charge inhomogeneity in copper oxide superconductors.
Nature 440, 1170 (2006).

P. Richard, Z. H. Pan, M. Neupane, A. V. Fedorov, T. Valla, P. D. Johnson, G. D. Gu, W. Ku, Z. Wang and H. Ding.
Nature of oxygen dopant-induced states in high-temperature Bi2Sr2CaCu2O8+x superconductors: A photoemission investigation.
Phys. Rev. B 74, 094512 (2006).

K. C. Rule, J. P. C. Ruff, B. D. Gaulin, S. R. Dunsiger, J. S. Gardner, J. P. Clancy, M. J. Lewis, H. A. Dabkowska, I. Mirebeau, P. Manuel, Y. Qiu and J. R. D. Copley.
Field-induced order and spin waves in the pyrochlore antiferromagnet Tb2Ti2O7.
Phys. Rev. Lett. 96, 177201 (2006).

A. T. Savici, A. Fukaya, I. M. Gat-Malureanu, T. Ito, P. L. Russo, Y. J. Uemura, C. R. Wiebe, P. P. Kyriakou, G. J. MacDougall, M. T. Rovers, G. M. Luke, K. M. Kojima, M. Goto, S. Uchida, R. Kadono, K. Yamada, S. Tajima, T. Masui, H. Eisaki, N. Kaneko, M. Greven and G. D. Gu.
Muon spin relaxation studies of magnetic-field-induced effects in high-Tc superconductors.
Phys. Rev. Lett. 95, 157001 (2005).

S. M. Shapiro, L. Passell, I. A. Zaliznyak, V. J. Ghosh, W. J. Leonhardt and M. E. Hagen.
The Methods of Producing and Analyzing Polarized Neutron Beams for HYSPEC at the SNS.
In Proc. of ICANS-XVII, Santa Fe, NM, 2005, edited by (Los Alamos, LA-UR-06-3904, 2006), p. 827.

S. M. Shapiro, G. Xu, G. Gu, J. Gardner and R. W. Fonda.
Lattice dynamics of the high-temperature shape-memory alloy Nb-Ru.
Phys. Rev. B 73, 214114 (2006).

C. Stock, D. Ellis, I. P. Swainson, G. Y. Xu, H. Hiraka, Z. Zhong, H. Luo, X. Zhao, D. Viehland, R. J. Birgeneau and G. Shirane.
Damped soft phonons and diffuse scattering in 40%Pb(Mg1/3Nb2/3)O3-60%PbTiO3.
Phys. Rev. B 73, 064107 (2006).

C. Stock, H. Luo, D. Viehland, J. F. Li, I. P. Swainson, R. J. Birgeneau and G. Shirane.
Strong influence of the diffuse component on the lattice dynamics in Pb(Mg1/3Nb2/3)O3.
J. Phys. Soc. Jpn. 74, 3002 (2005).

M. B. Stone, I. A. Zaliznyak, T. Hong, C. L. Broholm and D. H. Reich.
Quasiparticle breakdown in a quantum spin liquid.
Nature 440, 187 (2006).

J. M. Tranquada.
Charge stripes in cuprate superconductors: The middle way.
J. Phys. IV France 131, 67 (2005).

J. M. Tranquada, H. Woo, T. G. Perring, H. Goka, G. D. Gu, G. Xu, M. Fujita and K. Yamada.
Universal magnetic excitation spectrum in cuprates.
J. Phys. Chem. Solids 67, 511 (2006).

T. Valla, T. E. Kidd, J. D. Rameau, H. J. Noh, G. D. Gu, P. D. Johnson, H. B. Yang and H. Ding.
Fine details of the nodal electronic excitations in Bi2Sr2CaCu2O8+d.
Phys. Rev. B 73, 184518 (2006).

S. Wakimoto, H. Kimura, M. Fujita, K. Yamada, Y. Nodai, G. Shirane, G. Gu, H. Kim and R. J. Birgeneau.
Incommensurate lattice distortion in the high temperature tetragonal phase of La2-x(Sr,Ba)xCuO4.
J. Phys. Soc. Jpn. 75, 074714 (2006).

S. Wakimoto, G. A. Samara, R. K. Grubbs, E. L. Venturini, L. A. Boatner, G. Xu, G. Shirane and S. H. Lee.
Dielectric properties and lattice dynamics of Ca-doped K0.95Li0.05TaO3.
Phys. Rev. B 74, 054101 (2006).

Y. Y. Wang, L. Li, M. J. Naughton, G. D. Gu, S. Uchida and N. P. Ong.
Field-enhanced diamagnetism in the pseudogap state of the cuprate Bi2Sr2CaCu2O8+d superconductor in an intense magnetic field.
Phys. Rev. Lett. 95, 247002 (2005).

G. Xu, P. M. Gehring, C. Stock and K. Conlon.
The anomalous skin effect in single crystal relaxor ferroelectric PZN-xPT and PMN-xPT.
Phase Transitions 79, 135 (2006).

G. Y. Xu, P. M. Gehring and G. Shirane.
Persistence and memory of polar nanoregions in a ferroelectric relaxor under an electric field.
Phys. Rev. B 72, 214106 (2005).

G. Y. Xu, P. M. Gehring and G. Shirane.
Coexistence and competition of local- and long-range polar orders in a ferroelectric relaxor.
Phys. Rev. B 74, 104110 (2006).

G. Y. Xu, Z. Zhong, Y. Bing, Z. G. Ye and G. Shirane.
Electric-field-induced redistribution of polar nano-regions in a relaxor ferroelectric.
Nature Mater. 5, 134 (2006).

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