Results 51 to 60 of about 252,570 (320)

Complex Chiral Modulations in FeGe close to Magnetic Ordering

, 2013
We report on detailed polarized small-angle neutron scattering on cubic FeGe in magnetic fields applied either along (transverse) the scattering vector or parallel (longitudinal)to the neutron beam.
Baenitz, M., Dyadkin, V., Eckerlebe, H., Grigoriev, S., Moskvin, E., Schmidt, M., Wilhelm, H.   +6 more
core   +1 more source

Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge

Advanced Functional Materials, EarlyView.
Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu, Shuvankar Gupta, Hengxin Tan, Hyeonhu Bae, Olajumoke Oluwatobiloba Emmanuel, Mingyu Xu, Yan Wu, Xiaofeng Xu, Pengpeng Zhang, Weiwei Xie, Binghai Yan, Xianglin Ke   +11 more
wiley   +1 more source

Visualization and quantification of inhomogeneous and anisotropic magnetic fields by polarized neutron grating interferometry

Nature Communications, 2019
The magnetic field imaging on microscopic scale is of great importance to fundamental research as well industrial applications. Here the authors show the capability to visualize and characterize the magnetic properties with 100-micrometer resolution in ...
Jacopo Valsecchi, Ralph P. Harti, Marc Raventós, Muriel D. Siegwart, Manuel Morgano, Pierre Boillat, Markus Strobl, Patrick Hautle, Lothar Holitzner, Uwe Filges, Wolfgang Treimer, Florian M. Piegsa, Christian Grünzweig   +12 more
doaj   +1 more source

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

Advanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda, Jorge Cardenas‐Gamboa, Ding Pei, François Bertran, Leila Noohinejad, Snehashish Chatterjee, Changjiang Yi, Iñigo Robredo, Horst Borrmann, Maia G. Vergniory, Chandra Shekhar, Claudia Felser   +11 more
wiley   +1 more source

Neutrons reveal the dynamics of leaf thylakoids in living plants

Scientific Reports
The study is the first known exploration of photosynthetic membranes dynamics in living plants by high resolution quasielastic neutron scattering spectroscopy.
Laura-Roxana Stingaciu, Hugh O’Neill, Chung-Hao Liu, Barbara R. Evans, Gergely Nagy   +4 more
doaj   +1 more source

Interplay of structural and electronic phase separation in single crystalline La(2)CuO(4.05) studied by neutron and Raman scattering

, 2004
We report a neutron and Raman scattering study of a single-crystal of La(2)CuO(4.05) prepared by high temperature electrochemical oxidation. Elastic neutron scattering measurements show the presence of two phases, corresponding to the two edges of the ...
A. V. Yeremenko, A.A. Zakharov, A.M. Balagurov, B. Keimer, B. Stadlober, B.O. Wells, B.O. Wells, C. Kendziora, D. Vaknin, D.J. Scalapino, E.J. Ansaldo, E.Ya. Sherman, F.C. Chou, F.C. Chou, G. Güntherodt, G. Kotliar, J. Burgy, J. Chen, J. M. Tranquada, J.D. Jorgensen, J.E. Schirber, K. Semba, K.B. Lyons, L. A. Kurnevich, L.V. Gasparov, M. Kall, M. Matsuda, M. Opel, M.A. Kastner, O.V. Misochko, P. Lemmens, P. M. Gehring, P. Monthoux, P.C. Hammel, P.G. Radaelli, P.G. Radaelli, P.M. Grant, R. Hackl, R. Hackl, R.S. Decca, S. Chakravarty, S. N. Barilo, S. Sugai, S. Sugai, S. V. Shiryaev, S.L. Cooper, S.L. Cooper, S.M. Anlage, T. Staufer, T.E. Mason, T.P. Devereaux, T.P. Devereaux, V. P. Gnezdilov, V.J. Emery, V.J. Emery, V.Yu. Pomjakushin, W. Wagener, X. Xiong, X.K. Chen, X.K. Chen, X.K. Chen, X.K. Chen, X.K. Chen, X.K. Chen, Y. Ando, Y. Endoh, Y. Fukuzumi, Yu. G. Pashkevich   +67 more
core   +1 more source

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

Advanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang, Rohan Dhall, Matthew M. Schneider, Cun Li, Chengyu Song, Sundar Kunwar, Hongyi Dou, Natanii R. Yazzie, Henry Tran, Daniel Appuing, Jim Ciston, Nicholas G. Cucciniello, Pinku Roy, Michael T. Pettes, John Watt, Winson Kuo, Haiyan Wang, Ye Cao, Rodney J. McCabe, Aiping Chen   +19 more
wiley   +1 more source

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

Advanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra, Paul Konrad, Andreas Sperlich, Timur Biktagirov, Wolf Gero Schmidt, Lesley Spencer, Igor Aharonovich, Sven Höfling, Vladimir Dyakonov   +8 more
wiley   +1 more source

Spin dynamics of the ferromagnetic superconductor UGe$_{2}$

, 2003
Inelastic neutron scattering was used to study the low energy magnetic excitations of the ferromagnetic superconductor UGe$_{2}$. The ferromagnetic fluctuations are of Ising nature with a non-conserved magnetization and have an intermediate behavior ...
A Huxley, Collins, Hiraka, Hohenberg, Huxley, Huxley, Huxley, Ishikawa, Monthoux, Moriya, Résibois, S Raymond, Saxena, Semadeni, Shirane   +14 more
core   +2 more sources

Probing nuclear skins and halos with elastic electron scattering [PDF]

, 2006
I investigate the elastic electron scattering off nuclei far from the stability line. The effects of the neutron and proton skins and halos on the differential cross sections are explored. Examples are given for the charge distribution in Sn isotopes and
, , Bertulani C A, C A Bertulani, Eisenberg J M, Grypeos M E, Hofstadter R, Karataglidis S Amos K, Sagawa H, Suda T Maruayama K   +9 more
core   +1 more source