Long nanomechanical resonators with circular cross-section

Long nanomechanical resonators with circular cross-section
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具有圆形横截面的长纳米机械谐振器

DOI:
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发表时间:
2023
期刊:
影响因子:
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通讯作者:
D. Zmeev
D. Zmeev
中科院分区:
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文献类型:
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作者:
S. Autti;A. Casey;Marie Connelly;N. Darvishi;P. Franchini;James Gorman;Richard P. Haley;P. J. Heikkinen;Ashlea Kemp;E. Leason;J. March;Jocelyn Monroe;Theo Noble;George R. Pickett;J. Prance;X. Rojas;Tineke Salmon;John Saunders;Jack Slater;Robert Smith;Michael D. Thompson;S. West;Luke Whitehead;V. Zavjalov;Kuang Zhang;D. Zmeev

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Fabrication of superconducting nanomechanical resonators for quantum research, detectors and devices traditionally relies on a lithographic process, resulting in oscillators with sharp edges and a suspended length limited to a few 100 micrometres. We report a low-investment top-down approach to fabricating NbTi nanowire resonators with suspended lengths up to several millimetres and diameters down to 100 nanometres. The nanowires possess high critical currents and fields, making them a natural choice for magnetomotive actuation and sensing. This fabrication technique is independent of the substrate material, dimensions and layout and can readily be adapted to fabricate nanowire resonators from any metal or alloy with suitable ductility and yield strength. Our work thus opens access to a new class of nanomechanical devices with applications including microscopic and mesoscopic investigations of quantum fluids, detecting dark matter and fundamental materials research in one-dimensional superconductors in vacuum.
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