Gyratory Testing of Subgrade Soils (9999)
The paper describes the use of a gyratory testing machine for evaluating the properties of subgrade soils. In this apparatus, a soil sample is subjected to a normal pressure and a cyclic shearing...
Davis, D. Saul, Richer, Harvey B., Anderson, Jay, Brewer, J. H., Hurley, J., Kalirai, Jasonjot S., ...
Using Hubble Space Telescope observations of the globular cluster NGC 6397, we constrain the cluster's binary fraction. The observations consist of two fields: the primary science field, a single...
Electron localization into magnetic polaron in EuS (2008)
Storchak, V G, Parfenov, OE, Brewer, J H, Russo, PL, Stubbs, SL, Lichti, R L, ...
Recently the spin of the electron has become the focus of a new direction in electronics - semiconductor spintronics - which utilizes mechanisms of strong mutual influence of magnetic and electrical...
Davis, D. Saul, Richer, Harvey B., Anderson, Jay, Brewer, J. H., Hurley, J., Kalirai, Jasonjot S., ...
Using Hubble Space Telescope observations of the globular cluster NGC 6397, we constrain the cluster's binary fraction. The observations consist of two fields: the primary science field, a single...
Sonier, J. E., Callaghan, F. D., Ando, Y., Kiefl, R. F., Brewer, J. H., Kaiser, C. V., ...
Highly disordered magnetism confined to individual weakly interacting vortices is detected by muon spin rotation in two different families of high-transition-temperature superconductors, but only in...
Sonier, J. E., Sabok-Sayr, S. A., Callaghan, F. D., Kaiser, C. V., Pacradouni, V., Brewer, J. H., ...
We report on muon spin rotation measurements of the internal magnetic field distribution n(B) in the vortex solid phase of YBa2Cu3Oy (YBCO) single crystals, from which we have simultaneously...
Avoided Quantum Criticality in YBa_2Cu_3O_y and La_{2-x}Sr_xCuO_4 (2006)
Sonier, J. E., Callaghan, F. D., Ando, Y., Kiefl, R. F., Brewer, J. H., Kaiser, C. V., ...
Spin-glass magnetism confined to individual weakly interacting vortices is detected in two different families of high-transition-temperature (T_c) superconductors, but only in samples on the...
Incommensurate magnetic order in Ag$_{2}$NiO$_{2}$ (2006)
Sugiyama, J., Ikedo, Y., Mukai, K., Brewer, J. H., Ansaldo, E. J., Morris, G. D., ...
The nature of the magnetic transition of the half-filled triangular antiferromagnet Ag$_{2}$NiO$_2$ with $T_{\rm N}$=56K was studied with positive muon-spin-rotation and relaxation ($\mu^+$SR)...
Evidence of Two Dimensionality in Quasi-One-Dimensional Cobalt Oxides (2006)
Sugiyama, J., Nozaki, H., Ikedo, Y., Mukai, K., Andreica, D., Amato, A., ...
The quasi-one-dimensional (Q1D) cobalt oxides A_{n+2}Co_{n+1}O{3n+3} (A = Ca, Sr, and Ba, n = 1-∞) were investigated by muon-spin spectroscopy under applied pressures of up to 1.1 GPa. The...
Static magnetic order in metallic K$_{0.49}$CoO$_{2}$ (2005)
Sugiyama, J., Nozaki, H., Ikedo, Y., Mukai, K., Brewer, J. H., Ansaldo, E. J., ...
By means of muon spin spectroscopy, we have found that K$_{0.49}$CoO$_2$ crystals undergo successive magnetic transitions from a high-T paramagnetic state to a magnetic ordered state below 60 K and...
Sonier, J. E., Callaghan, F. D., Brewer, J. H., Hardy, W. N., Bonn, D. A., Liang, R.
This paper has been withdrawn by the authors, because of results obtained from a more exhaustive study of both YBa_2Cu_3O_y and La_{2-x}Sr_xCuO_4 (see cond-mat/0610051).
Two dimensionality in quasi one-dimensional cobalt oxides (2005)
Sugiyama, J., Nozaki, H., Brewer, J. H., Ansaldo, E. J., Takami, T., Ikuta, H., ...
By means of muon spin rotation and relaxation ($\mu^+$SR) techniques, we have investigated the magnetism of quasi one-dimensional (1D) cobalt oxides $AE_{n+2}$Co$_{n+1}$O$_{3n+3}$ ($AE$=Ca, Sr and...
Frustrated magnetism in the two-dimensional triangular lattice of LixCoO2 (2005)
Sugiyama, J., Nozaki, H., Brewer, J. H., Ansaldo, E. J., Morris, G. D., Delmas, Claude
Magnetism of the simplest layered cobaltite LixCoO2 with x=1.0, 0.95, and 0.7 has been investigated by positive muon spin rotation and relaxation (µ+SR) spectroscopy together with magnetic...
Sonier, J. E., Callaghan, F. D., Miller, R. I., Boaknin, E., Taillefer, L., Kiefl, R. F., ...
We report muon spin rotation measurements on the conventional type-II superconductor V3Si that provide clear evidence for changes to the inner structure of a vortex due to the delocalization of bound...
Sugiyama, J., Brewer, J. H., Ansaldo, E. J., Itahara, H., Dohmae, K., Xia, C., ...
Magnetism of a misfit layered cobaltite [Ca$_2$Co$_{4/3}$Cu$_{2/3}$O$_4$]$_x^{\rm RS}$[CoO$_2$] ($x \sim$ 0.62, RS denotes a rocksalt-type block) was investigated by a positive muon spin rotation and...
Electron correlation in the two-dimensional triangle lattice of Na$_x$CoO$_2$ (2003)
Sugiyama, J., Brewer, J. H., Ansaldo, E. J., Hitti, B., Mikami, M., Mori, Y., ...
Magnetism of layered cobaltites Na$_x$CoO$_2$ with $x$ = 0.6 and 0.9 has been investigated by a positive muon spin rotation and relaxation ($\mu^+$SR) spectroscopy together with magnetic...
Dome-shaped magnetic phase diagram of thermoelectric layered cobaltites (2003)
Sugiyama, J., Brewer, J. H., Ansaldo, E. J., Itahara, H., Tani, T., Mikami, M., ...
Using muon spin spectroscopy we have found that, for both Na$_x$CoO$_2$ (0.6 $\leq x \leq$ 0.9) and 3- and 4-layer cobaltites, a common low temperature magnetic state (which in some cases is manifest...
Sugiyama, J., Brewer, J. H., Ansaldo, E. J., Itahara, H., Dohmae, K., Seno, Y., ...
A positive muon spin rotation and relaxation ($\mu^+$SR) experiment on [Ca$_2$CoO$_3$]$_{0.62}$[CoO$_2$], ({\sl i.e.}, Ca$_3$Co$_4$O$_9$, a layered thermoelectric cobaltite) indicates the existence...
Coherent tunnelling dynamics of muonium in a disordered medium (2003)
Storchak, V G, Eshchenko, D G, Brewer, J H, Morris, G D, Cottrell, S P, Cox, S F J
Ionization of a shallow muonium state in a semiconductor (2003)
Eshchenko, D G, Storchak, V G, Brewer, J H, Cottrell, S P, Cox, S F J, Karlsson, E, ...
Excess electron transport in cryoobjects (2003)
Eschenko, D G, Storchak, V G, Brewer, J H, Cottrell, S P, Cox, S F J
Coherent quantum diffusion of muonium in a highly disordered medium (2003)
Storchak, V G, Eshchenko, D G, Brewer, J H, Cottrell, S P, Cox, S F J
Electron transport in condensed rare gases (2002)
Storchak, V G, Eshchenko, D G, Brewer, J H, Morris, G D, Cottrell, S P, Cox, S F J
Crosswy,F. L., Brayton,D. B., Kalb,H. T., Brewer,J. H.
The design details and initial performance evaluation of a two-component Laser Doppler Velocimeter (LDV) system for a large transonic wind tunnel are presented. The two-color, backscatter LDV was...
Evidence for Static Magnetism in the Vortex Cores of Ortho-II YBa$_2$Cu$_3$O$_{6.50}$ (2001)
Miller, R. I., Kiefl, R. F., Brewer, J. H., Sonier, J. E., Chakhalian, J., Dunsiger, S., ...
Evidence for static alternating magnetic fields in the vortex cores of underdoped YBa$_2$Cu$_3$O$_{6+x}$ is reported. Muon spin rotation measurements of the internal magnetic field distribution of...
Sonier, J. E., Brewer, J. H., Kiefl, R. F., Heffner, R. H., Poon, K., Stubbs, S. L., ...
Zero-field muon spin relaxation (ZF-$\mu$SR) measurements were undertaken on under- and overdoped samples of superconducting YBa$_2$Cu$_3$O$_{6+x}$ to determine the origin of the weak static...
Electron transport in cryocrystals (2001)
Storchak, V G, Eshchenko, D G, Brewer, J H, Cottrell, S P, Cox, S F J, Karlsson, E, ...
Muon diffusion in solid CO2 (2001)
Eschenko, D G, Storchak, V G, Brewer, J H, Cottrell, S P, Cox, S F J, Karlsson, E, ...
Muonium formation in condensed neon and argon (2000)
Eshchenko, D G, Storchak, V G, Brewer, J H, Morris, G D, Clarke-Gayther, M A, Cottrell, S P, ...
The origin of anomalous muonium in semiconductors (2000)
Eshchenko, D G, Storchak, V G, Brewer, J H, Morris, G D, Clarke-Gayther, M A, Cottrell, S P, ...
The origin of anomalous muonium in semiconductors (2000)
Eshchenko, D G, Storchak, V G, Brewer, J H, Morris, G D, Cox, S F J, Lord, J S
Muonium formation in condensed neon and argon (2000)
Eshchenko, D G, Storchak, V G, Brewer, J H, Morris, G D, Cox, S F J, Cottrell, S P, ...
Electron localization in a disordered insulating host (2000)
Storchak, V G, Eshchenko, D G, Brewer, J H, Morris, G D, Cottrell, S P, Cox, S F J
Quantum diffusion and localization in molecular crystals (2000)
Storchak, V G, Brewer, J H, Eshchenko, D G, Cottrell, S P, Cox, S F J
Brewer, J. H., Duty, T., Cowperthwaite, D.
A universal Graphical User Interface (GUI) for lSR data presentation and analysis has been developed using a Java Applet in the ubiquitous Web browser. This `thin Clienta communicates with a Server...
Brewer, J. H., Duty, T., Cowperthwaite, D.
A universal Graphical User Interface (GUI) for lSR data presentation and analysis has been developed using a Java Applet in the ubiquitous Web browser. This `thin Clienta communicates with a Server...
Melting and Dimensionality of the Vortex Lattice in Underdoped YBa2Cu3O6.60 (1999)
Sonier, J. E., Brewer, J. H., Kiefl, R. F., Bonn, D. A., Chakhalian, J., Dunsiger, S. R., ...
Muon spin rotation measurements of the magnetic field distribution in the vortex state of the oxygen deficient high-Tc superconductor YBa{2}Cu{3}O{6.60} reveal a vortex-lattice melting transition at...
Field Induced Reduction of the Low Temperature Superfluid Density in YBa2Cu3O6.95 (1999)
Sonier, J. E., Brewer, J. H., Kiefl, R. F., Morris, G. D., Miller, R. I., Bonn, D. A., ...
A novel high magnetic field (8 T) spectrometer for muon spin rotation has been used to measure the temperature dependence of the in-plane magnetic penetration depth in YBa2Cu3O6.95. At low H and low...
Destruction of bandlike propagation in orientationally ordered crystals (1999)
Storchak, V G, Brewer, J H, Eshchenko, D G, Cottrell, S P, Cox, S F J
A HIGH-SPEED, SOLID-STATE, DIGITAL SCANNER FOR USE WITH THE ERA 1102 COMPUTER (1998)
A high-speed, solid-state, digital scanner for entering data into the raw data system of the ERA 1102 computer is described. It was built for the Propulsion Wind Tunnel's 16-Ft superior tunnel. The...
Expansion of the Vortex Cores in YBa2Cu3O6.95 at Low Magnetic Fields (1998)
Sonier, J. E., Kiefl, R. F., Brewer, J. H., Bonn, D., Dunsiger, S., Liang, R., ...
Muon spin rotation spectroscopy has been used to measure the effective size of the vortex cores in optimally doped YBa2Cu3O6.95 as a function of temperature and magnetic field deep in the...
Sonier, J. E., Brewer, J. H., Kiefl, R. F., Bonn, D. A., Dunsiger, S. R., Hardy, W. N., ...
The internal field distribution in the vortex state of YBa2Cu3O6.60 is shown to be a sensitive measure of both the magnetic penetration depth and the vortex-core radius. The temperature dependence of...
Sonier, J. E., Kiefl, R. F., Brewer, J. H., Chakhalian, J., Dunsiger, S. R., MacFarlane, W. A., ...
Muon-spin rotation spectroscopy has been used to measure the internal magnetic field distribution in NbSe2 for Hc1
Muonium formation via electron transport in silicon (1997)
Storchak, V, Cox, S F J, Cottrell, S P, Brewer, J H, Morris, GD, Arseneau, DJ, ...
Muonium diffusion in 'dirty' solid krypton (1997)
Storchak, V G, Cottrell, S P, Cox, S F J, Brewer, J H, Morris, G D, Chow, K H
Muon localization in solid krypton (1996)
Storchak, V, Cox, S F J, Cottrell, S P, Brewer, J H, Morris, G D, Prokof'ev, N V
Muonium localization in solid krypton (1995)
Storchak, S N, Cox, S F J, Cottrell, S P, Brewer, J H, Morris, G D, Prokofiev, N V
Muonium localization in solid krypton (1995)
Storchak, V, Cox, S F J, Cottrell, S P, Brewer, J H, Morris, G D, Prokof'ev, N V
Zero-field μSR in crystalline C60 (1994)
Duty, T., Brewer, J. H., Chow, K., Kiefl, R. F., MacFarlane, A. W., Morris, G. D., ...
The C60Mu radical in polycrystalline C60 has been studied in zero magnetic field between 9 K and 200 K, and at room temperature. At low temperatures, we observe three low-frequency oscillations which...
Muon-spin-rotation study of the effect of Zn substitution on magnetism in YBa2Cu3Ox (1994)
Mendels, P., Alloul, H., Brewer, J. H., Morris, G. D., Duty, T., Johnston, T. M. S., ...
The magnetic properties of YBa2(Cu0.96Zn0.04)3Ox were studied in detail by means of muon spin rotation and relaxation for 6.0≤x≤6.92. The complete magnetic phase diagram was mapped out and a...
μSR Study of Zn-Substituted YBa2Cu3Ox (1994)
Mendels, P., Brewer, J. H., Alloul, H., Ansaldo, E. J., Noakes, D. R., Niedermayer, C., ...
We report zero field and transverse field mgrSR. measurements in magnetic YBa2(Cu1–y Zn y )3O x . Mild disorder of the antiferromagnetic state (x
Muon-spin-rotation study of the effect of Zn substitution on magnetism in YBa2Cu3Ox (1994)
Mendels, P., Alloul, H., Brewer, J. H., Morris, G. D., Duty, T., Johnston, T. M. S., ...
The magnetic properties of YBa2(Cu0.96Zn0.04)3Ox were studied in detail by means of muon spin rotation and relaxation for 6.0≤x≤6.92. The complete magnetic phase diagram was mapped out and a...
μSR Study of Zn-Substituted YBa2Cu3Ox (1994)
Mendels, P., Brewer, J. H., Alloul, H., Ansaldo, E. J., Noakes, D. R., Niedermayer, C., ...
We report zero field and transverse field mgrSR. measurements in magnetic YBa2(Cu1–y Zn y )3O x . Mild disorder of the antiferromagnetic state (x
Zero-field μSR in crystalline C60 (1994)
Duty, T., Brewer, J. H., Chow, K., Kiefl, R. F., MacFarlane, A. W., Morris, G. D., ...
The C60Mu radical in polycrystalline C60 has been studied in zero magnetic field between 9 K and 200 K, and at room temperature. At low temperatures, we observe three low-frequency oscillations which...
Muon-spin-rotation study of the effect of Zn substitution on magnetism in YBa2Cu3Ox (1994)
Mendels, P., Alloul, H., Brewer, J. H., Morris, G. D., Duty, T., Johnston, T. M. S., ...
The magnetic properties of YBa2(Cu0.96Zn0.04)3Ox were studied in detail by means of muon spin rotation and relaxation for 6.0≤x≤6.92. The complete magnetic phase diagram was mapped out and a...
μSR Study of Zn-Substituted YBa2Cu3Ox (1994)
Mendels, P., Brewer, J. H., Alloul, H., Ansaldo, E. J., Noakes, D. R., Niedermayer, C., ...
We report zero field and transverse field mgrSR. measurements in magnetic YBa2(Cu1–y Zn y )3O x . Mild disorder of the antiferromagnetic state (x
Microwave determination of the quasiparticle scattering time in YBa2Cu3O6.95 (1993)
Bonn, D. A., Liang, R., Riseman, T. M., Baar, D. J., Morgan, D. C, Zhang, K., ...
We report microwave surface resistance (Rs) measurements on two very-high-quality YBa2Cu3O6.95 crystals which exhibit extremely low residual loss at 1.2 K (2-6 μΩ at 2 GHz), a broad, reproducible...
Microwave determination of the quasiparticle scattering time in YBa2Cu3O6.95 (1993)
Bonn, D. A., Liang, R., Riseman, T. M., Baar, D. J., Morgan, D. C, Zhang, K., ...
We report microwave surface resistance (Rs) measurements on two very-high-quality YBa2Cu3O6.95 crystals which exhibit extremely low residual loss at 1.2 K (2-6 μΩ at 2 GHz), a broad, reproducible...
Quantum motion of muonium in GaAs and CuCl (1992)
Schneider, JW, Kiefi, RF, Ansaldo, EJ, Brewer, J H, Chow, K, Cox, S F J, ...
Evidence for endohedral muonium in Kx C60 and consequences for electronic structure (1992)
Kiefl, R. F., Duty, T., Schneider, J. W., MacFarlane, W. A., Chow, K., Elzey, J. W., ...
Positive muons injected into solid C60, K4C60, and K6C60 form vacuumlike muonium (μ+e-) with a (6–12)% probability. Observation of coherent spin precession of muonium establishes that all three...
Evidence for endohedral muonium in Kx C60 and consequences for electronic structure (1992)
Kiefl, R. F., Duty, T., Schneider, J. W., MacFarlane, W. A., Chow, K., Elzey, J. W., ...
Positive muons injected into solid C60, K4C60, and K6C60 form vacuumlike muonium (μ+e-) with a (6–12)% probability. Observation of coherent spin precession of muonium establishes that all three...
Muon level-crossing spectroscopy of organic free radicals (1987)
Percival, P W, Kiefl, R F, Kreitzman, S R, Garner, D M, Cox, S F J, Luke, G M, ...
Evaluation of a new microquantity blood collector.
Foster, T L, Winans, L, Brewer, J H
A new device for collecting small amounts of blood from laboratory animals offer distinct advantages over standard syringes during the collection of serum or plasma.
Evaluation of a new microquantity blood collector.
Foster, T L, Winans, L, Brewer, J H
A new device for collecting small amounts of blood from laboratory animals offer distinct advantages over standard syringes during the collection of serum or plasma.