The first subcycle angle-resolved photoemission study reveals how an intense terahertz field drives topologically protected Dirac currents on the surface of Bi2Te3. Spin-momentum locking enables fully ballistic lightwave currents over several 100 nm.
© 2019 The Author(s)
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
Login to access OSA Member Subscription