Measuring the mass of ‘massless’ electrons

first_imgIndividual electrons in graphene are massless, but when they move together, it’s a different story.Graphene, a one-atom-thick carbon sheet, has taken the world of physics by storm—in part, because its electrons behave as massless particles. Yet these electrons seem to have dual personalities. Phenomena observed in the field of graphene plasmonics suggest that when the electrons move collectively, they must exhibit mass.After two years of effort, researchers led by Donhee Ham, Gordon McKay Professor of Electrical Engineering and Applied Physics at the Harvard School of Engineering and Applied Sciences (SEAS), and his student Hosang Yoon, Ph.D.’14, have successfully measured the collective mass of ‘massless’ electrons in motion in graphene.By shedding light on the fundamental kinetic properties of electrons in graphene, this research may also provide a basis for the creation of miniaturized circuits with tiny, graphene-based components.The results of Ham and Yoon’s complex measurements, performed in collaboration with other experts at Columbia University and the National Institute for Materials Science in Japan, have been published online in Nature Nanotechnology. Read Full Storylast_img read more

Golf scramble results at Lucerne

first_img Fitness trainer is now cancer-exercise expert – October 12, 2014 Town report wins award – October 11, 2014 Following are the results for Monday’s senior scramble at the Lucerne Golf Club.First: Dick Baker, Dick Gassett, Bob Fraser and David Gubler (-6); second: Kerry Woodbury, Ron Snyder, Cecil Eldridge and Mike Dore (-5); third: Tom Winston, Russ Black, Bob McKenney and David Rand (-4) and John Somes, Robin Young, Scott McArthur and Larry Reynolds (-4); fourth: Dennis Kiah, John Lee, Jim Bonzey and John Schoppe (-3); fifth: Ron Allen, Royce Morrison, Mark Johnson and Don Burnham (-2).Closest to the pin were Eldridge at 12 feet, 9 inches on number 2 and Bob Fraser at 5 feet on number 6.The club also saw a hole-in-one by David Rand of Goose Cove on Thursday, Oct. 17.This is placeholder textThis is placeholder textRand achieved the milestone on hole number 6, using a pitching wedge on the 102-yard shot.Find in-depth coverage of local news in The Ellsworth American. Subscribe digitally or in print. Bio Latest Postscenter_img Latest posts by Fenceviewer Staff (see all) Schoodic Grange hosting sale – October 30, 2014 Fenceviewer Stafflast_img read more