Electrically Tunable Multiterminal SQUID-on-Tip

Aviram Uri; Alexander Y. Meltzer; Yonathan Anahory; Lior Embon; Ella O. Lachman; Dorri Halbertal; Naren Hr; Yuri Myasoedov; Martin E. Huber; Andrea F. Young; Eli Zeldov

doi:10.1021/acs.nanolett.6b02841

Electrically Tunable Multiterminal SQUID-on-Tip

Aviram Uri^*
, Alexander Y. Meltzer
, Yonathan Anahory
, Lior Embon
, Ella O. Lachman
, Dorri Halbertal
, Naren Hr
, Yuri Myasoedov
, Martin E. Huber
, Andrea F. Young
, Eli Zeldov

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

We present a new nanoscale superconducting quantum interference device (SQUID) whose interference pattern can be shifted electrically in situ. The device consists of a nanoscale four-terminal-four-junction SQUID fabricated at the apex of a sharp pipet using a self-aligned three-step deposition of Pb. In contrast to conventional two-terminal-two-junction SQUIDs that display optimal sensitivity when flux biased to about a quarter of the flux quantum, the additional terminals and junctions allow optimal sensitivity at arbitrary applied flux, thus eliminating the magnetic field "blind spots". We demonstrate spin sensitivity of 5 to 8 μ_B/Hz^1/2 over a continuous field range of 0 to 0.5 T with promising applications for nanoscale scanning magnetic imaging.

Original language	English
Pages (from-to)	6910-6915
Number of pages	6
Journal	Nano Letters
Volume	16
Issue number	11
DOIs	https://doi.org/10.1021/acs.nanolett.6b02841
State	Published - 9 Nov 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 American Chemical Society.

Keywords

SQUID-on-tip
Superconducting quantum interference device
current-phase relations
nanoscale magnetic imaging

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10.1021/acs.nanolett.6b02841

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title = "Electrically Tunable Multiterminal SQUID-on-Tip",

abstract = "We present a new nanoscale superconducting quantum interference device (SQUID) whose interference pattern can be shifted electrically in situ. The device consists of a nanoscale four-terminal-four-junction SQUID fabricated at the apex of a sharp pipet using a self-aligned three-step deposition of Pb. In contrast to conventional two-terminal-two-junction SQUIDs that display optimal sensitivity when flux biased to about a quarter of the flux quantum, the additional terminals and junctions allow optimal sensitivity at arbitrary applied flux, thus eliminating the magnetic field {"}blind spots{"}. We demonstrate spin sensitivity of 5 to 8 μB/Hz1/2 over a continuous field range of 0 to 0.5 T with promising applications for nanoscale scanning magnetic imaging.",

keywords = "SQUID-on-tip, Superconducting quantum interference device, current-phase relations, nanoscale magnetic imaging",

author = "Aviram Uri and Meltzer, \{Alexander Y.\} and Yonathan Anahory and Lior Embon and Lachman, \{Ella O.\} and Dorri Halbertal and Naren Hr and Yuri Myasoedov and Huber, \{Martin E.\} and Young, \{Andrea F.\} and Eli Zeldov",

note = "Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

year = "2016",

month = nov,

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doi = "10.1021/acs.nanolett.6b02841",

language = "אנגלית",

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TY - JOUR

T1 - Electrically Tunable Multiterminal SQUID-on-Tip

AU - Uri, Aviram

AU - Meltzer, Alexander Y.

AU - Anahory, Yonathan

AU - Embon, Lior

AU - Lachman, Ella O.

AU - Halbertal, Dorri

AU - Hr, Naren

AU - Myasoedov, Yuri

AU - Huber, Martin E.

AU - Young, Andrea F.

AU - Zeldov, Eli

PY - 2016/11/9

Y1 - 2016/11/9

N2 - We present a new nanoscale superconducting quantum interference device (SQUID) whose interference pattern can be shifted electrically in situ. The device consists of a nanoscale four-terminal-four-junction SQUID fabricated at the apex of a sharp pipet using a self-aligned three-step deposition of Pb. In contrast to conventional two-terminal-two-junction SQUIDs that display optimal sensitivity when flux biased to about a quarter of the flux quantum, the additional terminals and junctions allow optimal sensitivity at arbitrary applied flux, thus eliminating the magnetic field "blind spots". We demonstrate spin sensitivity of 5 to 8 μB/Hz1/2 over a continuous field range of 0 to 0.5 T with promising applications for nanoscale scanning magnetic imaging.

AB - We present a new nanoscale superconducting quantum interference device (SQUID) whose interference pattern can be shifted electrically in situ. The device consists of a nanoscale four-terminal-four-junction SQUID fabricated at the apex of a sharp pipet using a self-aligned three-step deposition of Pb. In contrast to conventional two-terminal-two-junction SQUIDs that display optimal sensitivity when flux biased to about a quarter of the flux quantum, the additional terminals and junctions allow optimal sensitivity at arbitrary applied flux, thus eliminating the magnetic field "blind spots". We demonstrate spin sensitivity of 5 to 8 μB/Hz1/2 over a continuous field range of 0 to 0.5 T with promising applications for nanoscale scanning magnetic imaging.

KW - SQUID-on-tip

KW - Superconducting quantum interference device

KW - current-phase relations

KW - nanoscale magnetic imaging

UR - https://www.scopus.com/pages/publications/84994752283

U2 - 10.1021/acs.nanolett.6b02841

DO - 10.1021/acs.nanolett.6b02841

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:84994752283

SN - 1530-6984

VL - 16

SP - 6910

EP - 6915

JO - Nano Letters

JF - Nano Letters

IS - 11

ER -

Electrically Tunable Multiterminal SQUID-on-Tip

Abstract

Bibliographical note

Keywords

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