Thumbnail
Access Restriction
Open

Author Ramaswamy, B. ♦ Algarin, J. M. ♦ Waks, E. ♦ Weinberg, I. N. ♦ Chen, Y. -J. ♦ Krivorotov, I. N. ♦ Katine, J. A. ♦ Shapiro, B.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ DIRECT CURRENT ♦ DISTANCE ♦ INDUCTION ♦ INSPECTION ♦ MICROWAVE RADIATION ♦ OSCILLATIONS ♦ OSCILLATORS ♦ SENSORS ♦ SPIN ♦ TORQUE ♦ TRANSDUCERS
Abstract We demonstrate that spin transfer torque nano-oscillators (STNO) can act as wireless sensors for local current. The STNO acts as a transducer that converts weak direct currents into microwave field oscillations that we detect using an inductive coil. We detect direct currents in the range of 300–700 μA and report them wirelessly to a receiving induction coil at distances exceeding 6.5 mm. This current sensor could find application in chemical and biological sensing and industrial inspection.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-06-13
Publisher Place United States
Journal Applied Physics Letters
Volume Number 108
Issue Number 24


Open content in new tab

   Open content in new tab