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28 Result(s)

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  1. No Access

    Article

    Temperature-dependent time relaxation of ON and OFF states in NiO \(_{x}\) -based crossbar memory arrays

    The time-dependence of ON and OFF switching states in Pt/NiO \(_{x}\) ...

    H. S. Alagoz, M. Egilmez, J. Jung, K. H. Chow in Applied Physics A (2022)

  2. No Access

    Article

    Quenched Disorder–Controlled Resistive Relaxation in Near-Half-Doped Manganite Systems

    We have investigated the influence of the disorder on the resistive relaxation effects in the Sm1-aSraMnO3 system where a is the fraction of the alkaline element. The disorder was introduced through chemical subs...

    M. Egilmez, S. T. Mahmud, H. S. Alagoz… in Journal of Superconductivity and Novel Mag… (2022)

  3. No Access

    Article

    Switching characteristics of NiOx crossbar arrays driven by low-temperature electroforming

    In this work, we systematically studied the temperature dependence of the current–voltage characteristics of Pt/ \(\hbox {NiO}_{{x}}\) ...

    H. S. Alagoz, L. Tan, J. Jung, K. H. Chow in Applied Physics A (2021)

  4. No Access

    Article

    Magnetic Characterization of Tm12Co5Bi Using μSR

    The local magnetic properties of Tm12Co 5Bi were investigated using muon spin relaxation (μSR), showing unusual magnetic features. Below 0.27 T, any magnetic transition in the sample occurs below ∼ 3 K while at 2...

    M. Egilmez, K. H. Chow, W. A. Macfarlane… in Journal of Superconductivity and Novel Mag… (2015)

  5. No Access

    Article

    Development of the collinear laser beam line at TRIUMF

    The low-energy collinear laser beam line at ISAC routinely produces highly nuclear-spin polarized beams of 8Li +  for depth-controlled studies of thin films and near-surface phenomena. It also is used for nuclear...

    C. D. P. Levy, M. R. Pearson, G. D. Morris, K. H. Chow… in Hyperfine Interactions (2010)

  6. No Access

    Article

    Intrinsic Nanoscale Disorder and the Physical Properties of HTSC

    Recent STM studies revealed nanoscale electronic disorder on the crystal surface in many cuprates. In BSCCO, strong correlations between oxygen defect distributions on its surface and both the gap map and the...

    J. A. Jung, K. H. Chow, M. Egilmez… in Journal of Superconductivity and Novel Mag… (2007)

  7. No Access

    Article

    Spin dynamics in conducting polymers studied by μSR

    We report studies of spin dynamics in the conducting polymers polyaniline and polypyrrole using both μ+SR and μ-SR techniques. These measurements reveal characteristic field dependences and cutoff frequencies for...

    F.L. Pratt, S.J. Blundell, P.A. Pattenden, W. Hayes, K.H. Chow… in Hyperfine Interactions (1997)

  8. No Access

    Article

    Diffusion, trap**, and relaxation of Mu+ and Mu- in heavily‐doped GaAs

    The diamagnetic muonium states in heavily doped GaAs are investigated with a combination of transverse‐field and longitudinal‐field μSR techniques. In metallic n‐type GaAs, formation of Mu- occurs because of the ...

    K.H. Chow, S.F.J. Cox, E.A. Davis, S.R. Dunsiger, T.L. Estle… in Hyperfine Interactions (1997)

  9. No Access

    Article

    Muon spin relaxation investigation of frustrated antiferromagnetic pyrochlores A2B2O7

    In a system where magnetic ions occupy the vertices of edge or corner sharing triangular units, the natural antiferromagnetic coupling between ions is geometrically frustrated. A wide variety of interesting ma...

    S.R. Dunsiger, R.F. Kiefl, K.H. Chow, B.D. Gaulin, M.J.P. Gingras… in Hyperfine Interactions (1997)

  10. No Access

    Article

    Electronic structure and dynamics of muonium in semiconductors

    In this paper, a selection of recent results on muonium in semiconductors is presented. These are primarily taken from Si and GaAs and encompass the electronic structure of the diamagnetic centers, charge stat...

    K.H. Chow in Hyperfine Interactions (1997)

  11. No Access

    Article

    Modelling hydrogen in silicate materials

    The expectation that the hydroxyl analogue state of positive muons implanted in quartz should be stabilized by a suitable charge compensation centre is supported by preliminary data. The diamagnetic fraction c...

    C.R.A. Catlow, M. Cherry, K.H. Chow, S.P. Cottrell, S.F.J. Cox… in Hyperfine Interactions (1997)

  12. No Access

    Article

    The giant muon Knight shift in antimony: Evidence for a Kondo impurity

    A detailed study has been undertaken of the muon Knight shift in high purity antimony single crystals. No periodic variations with magnetic field (de Haas–van Alphen oscillations) are observed. The temperature...

    T.M.S. Johnston, K.H. Chow, S. Dunsiger, T. Duty, R.F. Kiefl… in Hyperfine Interactions (1997)

  13. No Access

    Article

    Muon level crossing resonance in niobium

    A useful guide to detecting quadrupole level crossing resonance (QLCR) spectra is to search in the vicinity of BE\cdot(\gamman/\gamma_μ), where BE is the onset magnetic field for the decoupling of the quadrupole ...

    S.F.J. Cox, R. Füchslin, P.F. Meier, T.L. Estle, D.W. Cooke… in Hyperfine Interactions (1997)

  14. No Access

    Article

    Muonium diffusion in “dirty” solid krypton

    Muonium spin dynamics in solid krypton in the presence of deliberately introduced impurities has been studied in the temperature range from 2 K to 115 K. At temperatures up to 40 K, muonium transverse relaxati...

    V.G. Storchak, S.F.J. Cox, S.P. Cottrell, J.H. Brewer… in Hyperfine Interactions (1997)

  15. No Access

    Article

    Probing magnetic order in heavily doped La2-xSrxNiO4+\delta with μSR

    We report μSR measurements on a series of compounds with composition La2-xSrxNiO4+\delta where the net hole concentration x+2\delta is greater than 0.4. A magnetic transition is found in all the samples studied w...

    K.H. Chow, Th. Jestädt, S.J. Blundell, S.R. Dunsiger, W. Hayes… in Hyperfine Interactions (1997)

  16. No Access

    Article

    Diamagnetic muonium states in InP

    Transverse and zero‐field muon spin relaxation reveal several diamagnetic muonium states in InP characterized by their static linewidths and diffusion properties. We tentatively associate low‐temperature diama...

    R.L. Lichti, S.F.J. Cox, C. Schwab, T.L. Estle, B. Hitti… in Hyperfine Interactions (1997)

  17. No Access

    Article

    μSR studies of the metallic alkali fullerides

    We report ZF μSR measurements in Cs1C60 at low temperature and LF μSR in the superconductor Rb3C60. In Cs1C60, the internal magnetic field distribution is broad and static, and the relaxation at 1.9 K resembles t...

    W.A. MacFarlane, R.F. Kiefl, J.E. Fischer, S.R. Dunsiger… in Hyperfine Interactions (1997)

  18. No Access

    Article

    Organic magnetism in nitronyl nitroxides studied by μSR

    Ferromagnetism has been observed in a family of organic molecular crystals based on the nitronyl nitroxide radical. We present the results of μSR experiments on a number of nitronyl nitroxide compounds. The ze...

    S.J. Blundell, P.A. Pattenden, F.L. Pratt, K.H. Chow, W. Hayes… in Hyperfine Interactions (1997)

  19. No Access

    Article

    RF-μSR study of muonium charge states and dynamics in Si

    The radio frequencyμSR technique developed at TRIUMF was used to measure the temperature dependence of the diamagnetic muon, Mu, and Mu* amplitudes in silicon between 10 K and 500 K. Six samples doped with phosph...

    B. Hitti, S. R. Kreitzman, T. L. Estle, R. L. Lichti, K. H. Chow… in Hyperfine Interactions (1994)

  20. No Access

    Article

    Interaction of anomalous muonium with electronic excitations in Si studied by longitudinal field μSR

    We report longitudinal muon spin relaxation measurements in Si doped with phosphorus below room temperature. The data can be described qualitatively in a model where bond-centered muonium is undergoing spin ex...

    K. H. Chow, R. F. Kiefl, J. W. Schneider in Hyperfine Interactions (1994)

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