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Creators/Authors contains: "Chen, Chun-Chia"

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  1. ; ; ; ; ; ; ; ; (, ACS Nanoscience Au)
  2. ; ; ; ; ; ; ; ; (, Physical Review Letters)
  3. ; ; ; ; ; ; ; ; (, Physical Review Letters)
  4. ; ; ; ; ; ; ; ; (, Nano Letters)
    Superconducting diodes areproposed nonreciprocal circuit elements thatshould exhibit nondissipative transport inone direction while being resistive intheopposite direction. Multiple examples ofsuch devices have emerged inthepastcouple ofyears; however, their efficiency istypically limited, andmost ofthem require amagnetic field tofunction. Here wepresent adevice thatachieves efficiencies approaching 100% while operating atzero field. Our samples consist ofanetwork ofthree graphene Josephson junctions linked byacommon superconducting island, towhich werefer asa Josephson triode. Thethree-terminal nature ofthedevice inherently breaks theinversion symmetry, andthecontrol current applied toone ofthecontacts breaks thetime-reversal symmetry. Thetriode’s utility isdemonstrated byrectifying asmall (nA scale amplitude) applied square wave. Wespeculate thatdevices ofthistype could berealistically employed inthemodern quantum circuits. 
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