Now showing items 1336-1345 of 1345

    • Wafer-scale monodomain films of spontaneously aligned single-walled carbon nanotubes 

      He, Xiaowei; Gao, Weilu; Xie, Lijuan; Li, Bo; Zhang, Qi; Lei, Sidong; Robinson, John M.; Hároz, Erik H.; Doorn, Stephen K.; Wang, Weipeng; Vajtai, Robert; Ajayan, Pulickel M.; Adams, W. Wade; Hauge, Robert H.; Kono, Junichiro (2016)
      The one-dimensional character of electrons, phonons and excitons in individual single-walled carbon nanotubes leads to extremely anisotropic electronic, thermal and optical properties. However, despite significant efforts ...
    • Weaker nematic phase connected to the first order antiferromagnetic phase transition inᅠSrFe2As2ᅠcompared toᅠBaFe2As2 

      Tam, David W.; Wang, Weiyi; Zhang, Li; Song, Yu; Zhang, Rui; Carr, Scott V.; Walker, H.C.; Perring, Toby G.; Adroja, D.T.; Dai, Pengcheng (2019)
      Understanding the nature of the electronic nematic phase in iron pnictide superconductors is important for elucidating its impact on high-temperature superconductivity. Here we use transport and inelastic neutron scattering ...
    • Weyl–Kondo semimetal in heavy-fermion systems 

      Lai, Hsin-Hua; Grefe, Sarah E.; Paschen, Silke; Si, Qimiao (2018)
      While electronic states with nontrivial topology have traditionally been known in insulators, they have been evidenced in metals during the past 2 years. Such Weyl semimetals show topological protection while conducting ...
    • Why hydrocarbon-cross-linked peptides are membrane permeable 

      Sun, Tzu-Lin; Lee, Chang-Chun; Sun, Yen; Huang, Huey W. (2012)
    • Widespread orthorhombic fluctuations in the (Sr,Na)Fe2As2 family of superconductors 

      Frandsen, Benjamin A.; Taddei, Keith M.; Bugaris, Daniel E.; Stadel, Ryan; Yi, Ming; Acharya, Arani; Osborn, Raymond; Rosenkranz, Stephan; Chmaissem, Omar; Birgeneau, Robert J. (2018)
      We report comprehensive pair distribution function measurements of the hole-doped iron-based superconductor system Sr1−xNaxFe2As2. Structural refinements performed as a function of temperature and length scale reveal ...
    • X-Ray and Radio Observations of the Magnetar SGR J1935+2154 during Its 2014, 2015, and 2016 Outbursts 

      Younes, George; Kouveliotou, Chryssa; Jaodand, Amruta; Baring, Matthew G.; van der Horst, Alexander J.; Harding, Alice K.; Hessels, Jason W.T.; Gehrels, Neil; Gill, Ramandeep; Huppenkothen, Daniela; Granot, Jonathan; Göğüş Ersin; Lin, Lin (2017)
      We analyzed broadband X-ray and radio data of the magnetar SGR J1935+2154 taken in the aftermath of its 2014, 2015, and 2016 outbursts. The source soft X-ray spectrum <10 keV is well described with a blackbody+power-law ...
    • X-ray laser implementation by means of a strong source of high-spin metastable atoms 

      Helman, J.S.; Rau, C.; Bunge, C.F. (1983)
      High-spin metastable atomic beams of high density and extremely small divergence can be produced by electron capture during grazing-angle scattering of ion beams at ferromagnetic surfaces. This can be used to generate a ...
    • β-YbAlB4: A Critical Nodal Metal 

      Ramires, Aline; Coleman, Piers; Nevidomskyy, Andriy H.; Tsvelik, A. M. (2012-10)
      We propose a model for the intrinsic quantum criticality of β-YbAlB4, in which a vortex in momentum space gives rise to a new type of Fermi surface singularity. The unquenched angular momentum of the |J=7/2,mJ=±5/2⟩ Yb 4f ...
    • ΛΛ Correlation Function in Au+Au Collisions at √sNN=200  GeV 

      STAR Collaboration; Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W.J.; Roberts, J.B.; Xin, K.; Yepes, P. (2015)
      We present ΛΛ correlation measurements in heavy-ion collisions for Au+Au collisions at √sNN=200  GeV using the STAR experiment at the Relativistic Heavy-Ion Collider. The Lednický-Lyuboshitz analytical model has been used ...
    • ρ0 photoproduction in AuAu collisions at √sNN=62.4 GeV measured with the STAR detector 

      STAR Collaboration; Eppley, G.; Geurts, F.; Liu, J.; Llope, W.J.; McDonald, D.; Roberts, J.B.; Yepes, P. (2012)
      Vector mesons may be photoproduced in relativistic heavy-ion collisions when a virtual photon emitted by one nucleus scatters from the other nucleus, emerging as a vector meson. The STAR Collaboration has previously presented ...