Search results for "bismuth"

  • Charge density waves: Metal films mimic substrate’s waves

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... n the substrate it is on Electrons in an ultrathin bismuth film behave just as in any other metal, with no ba... n and valence electrons (left). But electrons in a bismuth film on a 1 T -TaS 2 substrate form charge density... found. Specifically, electrons in a two-atom-thick bismuth layer on tantalum sulfide (1 T -TaS 2 ) form a per...
  • Spintronics: Both sides polarized

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... ation is seen as expected at the surface of a thin bismuth film (upper plane) but also, surprisingly, at the ... the Rashba effect in very thin films of the metal bismuth. They deposited films of thickness ranging from 16... e film,” says Takayama. The researchers' choice of bismuth for their study was no coincidence. Spin–orbit cou...
  • Superconductivity: A potential hide-out for Majorana fermions

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... ological superconductor consisting of an ultrathin bismuth film on a high-temperature superconductor. Adapted... superconductor. They grew a six-atom-thick film of bismuth on top of a bismuth strontium calcium copper oxide... mauchi, K., Oguchi, T., Kudo, K. et al . Ultrathin bismuth film on high-temperature cuprate superconductor Bi...
  • Insulators: Electrons gaining mass

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... evolution from the topological insulator, thallium–bismuth–selenium (top left), to thallium–bismuth–sulfur (b... ape evolves in the topological insulator, thallium–bismuth–selenium. The experiments were performed on an ang... d by sulfur. Because the sulfur analogue, thallium–bismuth–sulfur, is not a topological insulator, the replac...
  • AIMResearch-2018.pdf

    RESEARCHWPI Advanced Institute for Materials Research HIGHLIGHTS 2018 A publication of the TABLE... found. Specifically, electrons in a two-atomthick bismuth layer on tantalum sulfide (1T-TaS2) form a periodi... als. The researchers fabricated ultrathin films of bismuth on two substrates: silicon and 1T-TaS2 (charge den... ). They then examined the electronic states in the bismuth films using spectroscopy and calculations. The tea...
  • Topological insulators: Properties transferred to metal film

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... cal insulator (TlBiSe 2 ) to an ultrathin layer of bismuth metal (red spheres). Adapted by permission from Ma... toemission spectroscopy to probe a bilayer film of bismuth on the topological insulator TlBiSe 2 . Their meas... urface of the topological insulator migrate to the bismuth film (see image). Since these measured states have...
  • AIMResearch-2012.pdf

    RESEARCH HIGHLIGHTS 2012 A publication of the WPI Advanced Institute for Materials Research RESE... ape evolves in the topological insulator, thallium–bismuth–selenium. The experiments were performed on an ang... volution from the topological insulator, thallium– bismuth–selenium (top left), to thallium–bismuth–sulfur (b... . by sulfur. Because the sulfur analogue, thallium–bismuth–sulfur, is not a topological insulator, the replac...
  • Professor T.Takahashi -- Discovery of giant Rashba effect at the semiconductor-metal interface -A significant progress for next-generation energy-saving devices --

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... ace between a semiconductor (silicon) and a metal (bismuth). The Rashba effect is regarded as a central mecha... he title of paper is "Tunable Spin Polarization in Bismuth Ultrathin Film on Si(111)". Contact Doctoral Stude...
  • Topological insulators: Imaging nanoscale domains on a multilayer structure

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... ide, a normal insulator alternating with layers of bismuth selenide, a topological insulator. They were able ...
  • Topological insulators: A large leap ahead

    About Overview Organization & Management Strategy Open Positions Access Research Researchers & L... ally be solved by tuning the ratio of thallium and bismuth in the samples. The quality of the samples prepare...