Gate-tunable giant superconducting nonreciprocal transport in few-layer 
<math>
  <mrow>
    <msub>
      <mi>T</mi>
      <mi>d</mi>
    </msub>
    <mtext>−</mtext>
    <msub>
      <mi>MoTe</mi>
      <mn>2</mn>
    </msub>
  </mrow>
</math>

T. Wakamura; M. Hashisaka; S. Hoshino; M. Bard; S. Okazaki; T. Sasagawa; T. Taniguchi; K. Watanabe; K. Muraki; N. Kumada

doi:10.1103/physrevresearch.6.013132

Journal article Gate-tunable giant superconducting nonreciprocal transport in few-layer $T_{d} − {MoTe}_{2}$

; ; ; ; ; ;

;

; ;

Download file (1.88 MB)
Download as zip (1.53 MB)

Collection

Citation

T. Wakamura, M. Hashisaka, S. Hoshino, M. Bard, S. Okazaki, T. Sasagawa, T. Taniguchi, K. Watanabe, K. Muraki, N. Kumada. Gate-tunable giant superconducting nonreciprocal transport in few-layer

T_{d} − {MoTe}_{2}

. Physical Review Research. 2024, 6 (1), 013132. https://doi.org/10.1103/physrevresearch.6.013132

(BibTeX)

Description:

(abstract)

We demonstrate gate-tunable giant field-dependent nonreciprocal transport (magnetochiral anisotropy) in noncentrosymmetric superconductor Td-MoTe2 in thin limit. Below the supercon- ducting transition temperature (Tc), a giant magnetochiral anisotropy (MCA) with the rectification coefficient γ = 3.1×106 T−1 A−1, is observed at 230 mK. This is one of the largest values reported so far, and is likely attributed to the reduced symmetry of the crystal structure. The temperature dependence of γ identifies the ratchet motion of magnetic vortices as the origin of the MCA. For bilayer Td-MoTe2, we successfully perform gate control of the MCA, and threefold modulation of γ is realized. Our experimental results provide a new route to realize an electrically controllable superconducting rectification device in a single material.

Rights: