Phelan, D., Millican, J. N., Thomas, E. L., Leao, J. B., Qiu, Y., Paul, R.
Inelastic neutron scattering experiments have been carried out on polycrystalline samples of the new $\alpha$-FeSe$_{1-x}$ superconductors. We report the phonon density of states for two samples,...
Revisiting Static and Dynamic Spin Ice Correlations in Ho2Ti2O7 (2008)
Clancy, J. P., Ruff, J. P. C., Dunsiger, S. R., Zhao, Y., Dabkowska, H. A., Gardner, J. S., ...
Elastic and inelastic neutron scattering studies have been carried out on the pyrochlore magnet Ho2Ti2O7. Measurements in zero applied magnetic field show that the disordered spin ice ground state of...
Weakly coupled $s = 1/2$ quantum spin singlets in Ba$_{3}$Cr$_{2}$O$_{8}$ (2008)
Kofu, M., Kim, J. H., Ji, S., Lee, S. H., Ueda, H., Qiu, Y., ...
Using single crystal inelastic neutron scattering with and without application of an external magnetic field and powder neutron diffraction, we have characterized magnetic interactions in...
Incommensurate magnetic order in the alpha-Fe(Te,Se) superconductor systems (2008)
Bao, Wei, Qiu, Y., Huang, Q., Green, M. A., Zajdel, P., Fitzsimmons, M. R., ...
Magnetic spin fluctuations is one candidate to produce the bosonic modes that mediate the superconductivity in the ferrous superconductors. Up until now, all of the LaOFeAs and BaFe2As2 structure...
Nanoscale freezing of the 2D spin liquid Pr$_{3}$Ga$_{5}$SiO$_{14}$ (2008)
Zhou, H. D., Wiebe, C. R., Balicas, L., Takano, Y., Case, M. J., ...
In this letter, we report on the single crystal growth and physical characterization of the distorted kagom\'{e} system Pr$_3$Ga$_5$SiO$_{14}$. It is found that at zero magnetic field the system...
Spin Waves and Quantum Criticality in the Frustrated XY Pyrochlore Antiferromagnet Er2Ti2O7 (2008)
Ruff, J. P. C., Clancy, J. P., Bourque, A., White, M. A., Ramazanoglu, M., Gardner, J. S., ...
We report detailed measurements of the low temperature magnetic phase diagram of Er$_2$Ti$_2$O$_7$. Heat capacity and time-of-flight neutron scattering studies of single crystals, subject to magnetic...
Chi, Songxue, Adroja, D. T., Guidi, T., Bewley, R., Li, Shiliang, Zhao, Jun, ...
We use inelastic neutron scattering to study the crystalline electric field (CEF) excitations of Ce$^{3+}$ in CeFeAsO$_{1-x}$F$_{x}$($x=0,0.16$). For nonsuperconducting CeFeAsO, the Ce CEF levels...
Coexistence of the spin-density-wave and superconductivity in the (Ba,K)Fe2As2 (2008)
Chen, H., Ren, Y., Qiu, Y., Bao, Wei, Liu, R. H., Wu, G., ...
The relation between the spin-density-wave (SDW) and superconducting order is a central topic in current research on the FeAs-based high Tc superconductors. Conflicting results exist in the...
Itinerant spin excitations near the hidden order transition in URu2Si2 (2008)
Janik, J. A., Zhou, H. D., Balicas, L., MacDougall, G. J., Luke, G. M., ...
By means of neutron scattering we show that the high-temperature precursor to the hidden order state of the heavy fermion superconductor URu$_{2}$Si$_{2}$ exhibits heavily damped incommensurate...
Huang, Q., Qiu, Y., Bao, Wei, Lynn, J. W., Green, M. A., Chen, Y., ...
In addition to higher Tc compared with the ubiquitous cuprates for a material composed of a single electronically active layer, the newly discovered LnFeAsO superconductors offer additional...
Structure and Magnetic Order in the NdFeAs(O,F) Superconductor System (2008)
Qiu, Y., Bao, Wei, Huang, Q., Yildirim, T., Simmons, J., Lynn, J. W., ...
The transition temperature Tc~26 K of the recently discovered superconductor LaFeAs(O,F) has been demonstrated to be extremely sensitive to the lanthanide ion, reaching 55 K for the Sm containing...
External magnetic field effects on a distorted kagome antiferromagnet (2008)
Ji, S., Lake, B., Yildirim, T., Nojiri, H., ...
We report bulk magnetization, and elastic and inelastic neutron scattering measurements under an external magnetic field, $H$, on the weakly coupled distorted kagome system, Cu_{2}(OD)_3Cl. Our...
Neutron scattering study of the oxypnictide superconductor La(O,F)FeAs (2008)
Qiu, Y., Kofu, M., Bao, Wei, Huang, Q., Yildirim, T., ...
The newly discovered superconductor La(O,F)FeAs (Tc = 26 K) was investigated using the neutron scattering technique. No spin-density-wave (SDW) order was observed in the normal state nor in the...
Dispersive magnetic excitations in the S=1 antiferromagnet Ba$_3$Mn$_2$O$_8$ (2008)
Stone, M. B., Lumsden, M. D., Qiu, Y., Samulon, E. C., Batista, C. D., Fisher, I. R.
We present powder inelastic neutron scattering measurements of the S=1 dimerized antiferromagnet Ba$_3$Mn$_2$O$_8$. The $T=1.4$ K magnetic spectrum exhibits a spin-gap of $\Delta \approx 1.0$ meV and...
Aqueous deposition of ultraviolet luminescent columnar tin-doped indium hydroxide films (2008)
Qiu, Y., Bellina, P., Jeurgens, L. P. H., Leineweber, A., Welzel, U., Gerstel, P., ...
Aqueous deposition of ultraviolet luminescent columnar tin-doped indium hydroxide films (2008)
Qiu, Y., Bellina, P., Jeurgens, L. P. H., Leineweber, A., Welzel, U., Gerstel, P., ...
Aqueous deposition of ultraviolet luminescent columnar tin-doped indium hydroxide films (2008)
Qiu, Y., Bellina, P., Jeurgens, L. P. H., Leineweber, A., Welzel, U., Gerstel, P., ...
Dunsiger, S. R., Zhao, Y., Gaulin, B. D., Qiu, Y., Bourges, P., Sidis, Y., ...
We have studied incommensurate spin ordering in single crystal underdoped La_{2-x}Ba_{x}CuO_{4} with x~0.08, 0.05 and 0.025 using neutron scattering techniques. Static incommensurate magnetic order...
Gap excitations in a four-leg Heisenberg spin tube antiferromagnet (2007)
Garlea, V. O., Zheludev, A., Qiu, Y., Boehm, M., ...
Inelastic neutron scattering is used to investigate magnetic excitations in the quasi-one-dimensional quantum spin-liquid system Cu2Cl4 D8C4SO2. Contrary to previously conjectured models that relied...
Wiebe, C. R., Janik, J. A., Macdougall, G. J., Luke, G. M., Garrett, J. D., Zhou, H. D., ...
One of the primary goals of modern condensed matter physics is to elucidate the nature of the ground state in various electronic systems. Many correlated electron materials, such as high temperature...
Ye, F., Fernandez-Baca, J. A., Fishman, R. S., Ren, Y., Kang, H. J., Qiu, Y., ...
The spin wave excitations of the geometrically frustrated triangular lattice antiferromagnet (TLA) $\rm CuFeO_2$ have been measured using high resolution inelastic neutron scattering....
From Cooperative Paramagnet to N\'{e}el Order in Y_2Ru_2O_7 (2007)
Van Duijn, J., Hur, N., Taylor, J. W., Qiu, Y., Huang, Q. Z., ...
Spin correlations in the pyrochlore antiferromagnet Y_2Ru_2O_7 with Curie-Weiss temperature $\Theta_{CW}=-1100$ K and critical temperature T_N=77 K were examined through neutron scattering. For $T_N
Quantum spin liquid states in the two dimensional kagome antiferromagnets, ZnxCu4-x(OD)6Cl2 (2007)
Kikuchi, H., Qiu, Y., Lake, B., Huang, Q., Habicht, K., ...
A three-dimensional system of interacting spins typically develops static long-range order when it is cooled. If the spins are quantum (S = 1/2), however, novel quantum paramagnetic states may...
Dynamics of quantum spin liquid and spin solid phases in IPA-CuCl3 under field (2007)
Zheludev, A., Garlea, V. O., Masuda, T., Manaka, H., Ressouche, E., ...
Inelastic and elastic neutron scattering is used to study spin correlations in the quasi-one dimensional quantum antiferromagnet IPA-CuCl3 in strong applied magnetic fields. A condensation of magnons...
A multi-method approach to assessing Health Information Systems end users' training needs (2007)
In order to guarantee acceptance and effective usage of health information system (HIS), its end users must be appro-priately trained. However many existing training programs did not adequately...
SN 2003du: 480 days in the life of a normal type Ia supernova (2007)
Stanishev, V., Goobar, A., Benetti, S., Kotak, R., Pignata, G., Navasardyan, H., ...
SN 2003du: 480 days in the life of a normal type Ia supernova. (2007)
Stanishev, V., Goobar, A., Benetti, S., Kotak, R., Pignata, G., Navasardyan, H., ...
A multi-method approach to assessing Health Information Systems end users' training needs (2007)
In order to guarantee acceptance and effective usage of health information system (HIS), its end users must be appro-priately trained. However many existing training programs did not adequately...
Spin Dynamics of the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu_3(OH)_6Cl_2 (2006)
Helton, J. S., Matan, K., Shores, M. P., Nytko, E. A., Bartlett, B. M., Yoshida, Y., ...
We have performed thermodynamic and neutron scattering measurements on the S=1/2 kagome lattice antiferromagnet Zn Cu_3 (OH)_6 Cl_2. The susceptibility indicates a Curie-Weiss temperature of ~ -300...
Excitations from a Bose-Einstein condensate of magnons in coupled spin ladders (2006)
Garlea, V. O., Zheludev, A., Masuda, T., Ressouche, E., Brenier, B., ...
The weakly coupled quasi-one-dimensional spin ladder compound (CH$_3$)$_2$CHNH$_3$CuCl$_3$ is studied by neutron scattering in magnetic fields exceeding the critical field of Bose-Einstein...
Neutron scattering from a coordination polymer quantum paramagnet (2006)
Hong, Tao, Kenzelmann, M., Turnbull, M. M., Landee, C. P., Lewis, B. D., Schmidt, K. P., ...
Inelastic neutron scattering measurements are reported for a powder sample of the spin-1/2 quantum paramagnet $\rm Cu(Quinoxaline)Br_2$. Magnetic neutron scattering is identified above an energy gap...
Anomalous extinction behaviour towards the Type Ia SN 2003cg (2006)
Elias-Rosa, N., Benetti, S., Cappellaro, E., Turatto, M., Mazzali, P. A., Patat, F., ...
We present optical and near-infrared photometry and spectroscopy of the Type Ia SN 2003cg, which exploded in the nearby galaxy NGC 3169. The observations cover a period between -8.5 and +414 days...
Field Induced Order and Spin Waves in the Pyrochlore Antiferromagnet Tb2Ti2O7 (2006)
Rule, K. C., Ruff, J. P. C., Gaulin, B. D., Dunsiger, S. R., Gardner, J. S., Clancy, J. P., ...
High resolution time-of-flight neutron scattering measurements on Tb2Ti2O7 reveal a rich low temperature phase diagram in the presence of a magnetic field applied along [110]. In zero field at T=0.4...
Temperature dependent bilayer ferromagnetism in Sr3Ru2O7 (2006)
Stone, M. B., Lumsden, M. D., Jin, R., Sales, B. C., Qiu, Y., Mandrus, D., ...
The Ruthenium based perovskites exhibit a wide variety of interesting collective phenomena related to magnetism originating from the Ru 4d electrons. Much remains unknown concerning the nature of...
Aqueous solution deposition of indium hydroxide and indium oxide columnar type thin films (2006)
Qiu, Y., Gerstel, P., Jiang, L., Lipowsky, P., Pitta Bauermann, L., Bill, J.
Probing spin frustration in high-symmetry magnetic nanomolecules by inelastic neutron (2006)
Garlea, VO, Nagler, SE, Zaretsky, JL, Stassis, C, Vankin, D, Kögerler, P, ...
Low temperature inelastic neutron scattering studies have been performed to characterize the low energy magnetic excitation spectrum of the magnetic nanomolecule Mo72Fe30. This unique highly...
The transmission of roll, pitch and yaw vibration from the floor of a small car to the seat backrest has been investigated with three road conditions. At the seat base, there were distinctive...
Nano-magnetic droplets and implications to orbital ordering in La1-xSrxCoO3 (2005)
Phelan, D., Louca, Despina, Rosenkranz, S., Qiu, Y., Chupas, P. J., ...
Inelastic cold neutron scattering on LaCoO3 provided evidence for a distinct low energy excitation at 0.6 meV coincident with the thermally induced magnetic transition. Coexisting strong...
Dynamics of composite Haldane spin chains in IPA-CuCl3 (2005)
Masuda, T., Zheludev, A., Manaka, H., Qiu, Y.
Magnetic excitations in the quasi-one-dimensional antiferromagnet IPA-CuCl3 are studied by cold neutron inelastic scattering. Strongly dispersive gap excitations are observed. Contrary to previously...
Slow spin-glass and fast spin-liquid components in quasi-two-dimensional La2(Cu,Li)O4 (2005)
Chen, Y., Bao, Wei, Qiu, Y., Lorenzo, J. E., Sarrao, J. L., Ho, D. L., ...
In conventional spin glasses, magnetic interaction is not strongly anisotropic and the entire spin system is believed to be frozen below the spin-glass transition temperature. In La2Cu0.94Li0.06O4,...
Magnetic excitations in {Mo72Fe30} (2005)
Garlea, V. O., Nagler, S. E., Zarestky, J. L., Stassis, C., Vaknin, D., Kogerler, P., ...
We report cold-neutron inelastic neutron scattering measurements on deuterated samples of the giant polyoxomolybdate magnetic molecule {Mo72Fe30}. The 30 s = 5/2 Fe+3 ions occupy the vertices of an...
Partial spin freezing in the quasi-two-dimensional La2(Cu,Li)O4 (2005)
Chen, Y., Bao, Wei, Qiu, Y., Lorenzo, J. E., Sarrao, J. L., Ho, D. L., ...
In conventional spin glasses, the magnetic interaction is not strongly anisotropic and the entire spin system freezes at low temperature. In La2(Cu,Li)O4, for which the in-plane exchange interaction...
Kenzelmann, M., Batista, C. D., Chen, Y., Broholm, C., Reich, D. H., Park, S., ...
We report an experimental and theoretical study of the antiferromagnetic S=1/2 chain subject to uniform and staggered fields. Using inelastic neutron scattering, we observe a novel bound-spinon state...
Photometric observations of the Type Ia SN 2002er in UGC 10743 (2004)
Pignata, G., Patat, F., Benetti, S., Blinnikov, S., Hillebrandt, W., Kotak, R., ...
Extensive light and colour curves for the Type Ia supernova (SN Ia) SN 2002er are presented as part of the European Supernova Collaboration. We have collected UBVRI photometry from 11 different...
Ordering and Spin Waves in NaNiO2 : A Stacked Quantum Ferromagnet (2004)
Lewis, M. J., Gaulin, B. D., Filion, L., Kallin, C., Berlinsky, A. J., Dabkowska, H. A., ...
Neutron scattering measurements on powder NaNiO2 reveal magnetic Bragg peaks and spin waves characteristic of strongly correlated s=1/2 magnetic moments arranged in ferromagnetic layers which are...
Anomalous critical behavior near the quantum critical point of a hole-doped La2CuO4 (2004)
Chen, Y., Bao, Wei, Lorenzo, J. E., Stunault, A., Sarrao, J. L., Park, S., ...
The Landau-Ginzburg-Wilson paradigm for critical phenomena is spectacularly successful whenever the critical temperature is finite and all fluctuation modes, with characteristic energies much smaller...
Magnetic ordering in the spin-ice candidate Ho{2}Ru{2}O{7} (2004)
Wieble, C.R., Gardner, J.S., Luke, G.M., Wills, A.S., Gaulin, D.B., ...
Neutron scattering measurements on the spin-ice candidate material Ho2Ru2O7 have revealed two magnetic transitions at T∼95 and ∼1.4 K to long-range ordered states involving the Ru and Ho...
Transmission of vibration to the backrest of a car seat evaluated with multi-input models (2004)
The transmission of vibration to the occupant of a car seat has been studied using the multiple vibration inputs to the seat. Twelve input signals at the seat base (tri-axial vibration at the four...
Photometric observations of the Type Ia SN 2002er in UGC 10743 (2004)
Pignata, G., Patat, F., Benetti, S., Blinnikov, S., Hillebrandt, W., Kotak, R., ...
An interface-element formulation for the simulation of delamination with buckling (2001)
Qiu, Y., Crisfield, M.A., Alfano, G.
The paper describes a simple corotational formulation applied to one-dimensional interface elements which embed a fracturing procedure for mixed-mode delaminations. Having thereby introduced...
Geyer, U., Johnson, W. L., Schneider, S., Qiu, Y., Tombrello, T. A.
Be diffusivity data in the bulk metallic glass forming alloy Zr46.7Ti8.3Cu7.5Ni10Be27.5 are reported for temperatures between 530 and 710 K, extending 85 K into the supercooled liquid state of the...
Geyer, U., Schneider, S., Johnson, W. L., Qiu, Y., Tombrello, T. A.
The self-diffusivity of Be in the bulk metallic amorphous alloy Zr41.2Ti13.8Cu12.5Ni10Be22.5 is investigated. Below the glass transition temperature the data suggest a single atomic jump diffusion...
Breath sounds, asthma and the mobile phone
Anderson, K., Qiu, Y., Whittaker, A.R., Lucas, M.
The sounds generated by breathing in asthma are widely accepted as an indicator of disease activity. We have investigated the use of a mobile phone and electronic signal transfer by e-mail and voice...
Automatic wheeze detection based on auditory modelling
Qiu, Y., Whittaker, A., Lucas, M., Anderson, K.
Automatic wheeze detection has several potential benefits compared with reliance on human auscultation: it is experience independent, an automated historical record can easily be kept, and it allows...
Sin3 corepressor function in Myc-induced transcription and transformation.
Harper, S E, Qiu, Y, Sharp, P A
Many basic-helix-loop-helix-leucine zipper (b-HLH-LZ) proteins, including the Myc family and non-Myc family, bind a common DNA sequence CACGTG, yet have quite different biological actions. Myc binds...
Qiu, Y, Cooney, A J, Kuratani, S, DeMayo, F J, Tsai, S Y, Tsai, M J
Chicken ovalbumin upstream promoter-transcription factor (COUP-TF) genes encode transcription factors belonging to the orphan subfamily of the steroid/thyroid hormone receptor superfamily. Two...
The influenza virus NS1 protein inhibits the nuclear export of a spliced viral mRNA, NS2 mRNA (F. V. Alonso-Caplen, M. E. Nemeroff, Y. Qiu, and R. M. Krug, Genes Dev. 6:255-267, 1992). To identify...
Sun, J Z, Tang, X L, Knowlton, A A, Park, S W, Qiu, Y, Bolli, R
Conscious pigs underwent a sequence of 10 2-min coronary occlusions, each separated by 2 min of reperfusion, for three consecutive days (days 1, 2, and 3 of stage I). The recovery of systolic wall...
PBP74, a new member of the mammalian 70-kDa heat shock protein family, is a mitochondrial protein.
Dahlseid, J N, Lill, R, Green, J M, Xu, X, Qiu, Y, Pierce, S K
The cloning of a cDNA encoding a new member of the highly conserved mammalian 70-kDa heat shock protein (hsp 70) family termed PBP74 was recently reported. Critical to an understanding of the...
Sun, J Z, Tang, X L, Park, S W, Qiu, Y, Turrens, J F, Bolli, R
Conscious pigs underwent a sequence of 10 2-min coronary occlusions, each separated by 2 min of reperfusion, for three consecutive days (days 1, 2, and 3). On day 1, pigs received an i.v. infusion of...