BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//RLASKEY//CALENDEROUS//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20261024T211246Z
LAST-MODIFIED:20181015T203549Z
DTSTART:20181130T170000Z
DTEND:20181130T180000Z
UID:event2036@bu.edu
URL:http://physics.bu.edu/internal/events/show/2036
SUMMARY:Dirac nodal lines and flat-band surface state in the functional oxi
	de RuO2
DESCRIPTION:Featuring Vedran Jovic\, University of Auckland\n\nPart of the 
	Biophysics/Condensed Matter Seminar Series.\n\nThe efficiency and stability
	 of RuO2 in electro-catalysis has made this material a subject of intense f
	undamental and industrial interest. The surface functionality is rooted in 
	its electronic and magnetic properties – determined by a complex interpla
	y of lattice-\, spin-rotational\, and time-reversal symmetries\, as well as
	 the competition between Coulomb- and kinetic energies. This interplay was 
	predicted to produce a network of Dirac nodal lines (DNL)\, where the valen
	ce- and conduction bands touch along continuous lines in momentum space. He
	re we uncover direct evidence for three DNLs in RuO2 by angle resolved phot
	oemission spectroscopy (ARPES). These DNLs give rise to a flat-band surface
	 state (FBSS) that is readily tuned by the electrostatic environment\, and 
	that presents an intriguing platform for exotic correlation phenomena. Our 
	findings support high spin-Hall conductivities and bulk magnetism in RuO2\,
	 and are likely related to its catalytic properties.\n\nVedran Jovic\,1 Rol
	and J. Koch\,2 Swarup K. Panda\,3 Helmuth Berger\,4 Philippe Bugnon\,4 Arna
	ud Magrez\,4 Kevin E. Smith\,1\,5 Silke Biermann\,3\,6 Chris Jozwiak\,2 Aar
	on Bostwick\,2 Eli Rotenberg\,2 and Simon Moser2\,7\n\n1 School of Chemical
	 Sciences and Centre for Green Chemical Sciences\, The University of Auckla
	nd\, Auckland 1142\, New Zealand\n\n2 Advanced Light Source\, E. O. Lawrenc
	e Berkeley National Laboratory\, Berkeley\, California 94720\, USA\n\n3 Cen
	tre de Physique Theorique\, Ecole Polytechnique\, CNRS-UMR7644\, UniversitĂ
	© Paris-Saclay\, 91128 Palaiseau\, France\n\n4 Institute of Physics\, Ecole
	 Polytechnique Fédérale de Lausanne (EPFL)\, CH-1015 Lausanne\, Switzerla
	nd\n\n5Department of Physics\, Boston University\, Boston\, Massachusetts 0
	2215\, USA\n\n6 Collège de France\, 11 place Marcelin Berthelot\, 75005 Pa
	ris\, France
LOCATION:SCI 352\, 590 Commonwealth Avenue\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
END:VCALENDAR