Nano-sized SQUID-on-tip for scanning probe microscopy

Amit Finkler; Denis Vasyukov; Yair Segev; Lior Neeman; Yonathan Anahory; Yuri Myasoedov; M. L. Rappaport; M. E. Huber; J. Martin; Amnon Yacoby; Eli Zeldov

doi:10.1088/1742-6596/400/5/052004

Nano-sized SQUID-on-tip for scanning probe microscopy

Amit Finkler, Denis Vasyukov, Yair Segev, Lior Neeman, Yonathan Anahory, Yuri Myasoedov, M. L. Rappaport, M. E. Huber, J. Martin, Amnon Yacoby, Eli Zeldov

Research output: Contribution to journal › Conference article › peer-review

12 Citations (Scopus)

Abstract

We present a SQUID of novel design, which is fabricated on the tip of a pulled quartz tube in a simple 3-step evaporation process without need for any additional processing, patterning, or lithography. The resulting devices have SQUID loops with typical diameters in the range 75-300 nm. They operate in magnetic fields up to 0.6 T and have flux sensitivity of 1.8 μΦ₀/Hz^1/2 and magnetic field sensitivity of 10 ^-7 T/Hz^1/2, which corresponds to a spin sensitivity of 65 μ_B/Hz^1/2 for aluminum SQUIDs. The shape of the tip and the small area of the SQUID loop, together with its high sensitivity, make our device an excellent tool for scanning SQUID microscopy: With the SQUID-on-tip glued to a tine of a quartz tuning fork, we have succeeded in obtaining magnetic images of a patterned niobium film and of vortices in a superconducting film in a magnetic field.

Original language	English
Article number	052004
Journal	Journal of Physics: Conference Series
Volume	400
Issue number	PART 4
DOIs	https://doi.org/10.1088/1742-6596/400/5/052004
Publication status	Published - 2012
Event	26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China Duration: 10 Aug 2011 → 17 Aug 2011

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1088/1742-6596/400/5/052004

Cite this

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title = "Nano-sized SQUID-on-tip for scanning probe microscopy",

abstract = "We present a SQUID of novel design, which is fabricated on the tip of a pulled quartz tube in a simple 3-step evaporation process without need for any additional processing, patterning, or lithography. The resulting devices have SQUID loops with typical diameters in the range 75-300 nm. They operate in magnetic fields up to 0.6 T and have flux sensitivity of 1.8 μΦ0/Hz1/2 and magnetic field sensitivity of 10 -7 T/Hz1/2, which corresponds to a spin sensitivity of 65 μB/Hz1/2 for aluminum SQUIDs. The shape of the tip and the small area of the SQUID loop, together with its high sensitivity, make our device an excellent tool for scanning SQUID microscopy: With the SQUID-on-tip glued to a tine of a quartz tuning fork, we have succeeded in obtaining magnetic images of a patterned niobium film and of vortices in a superconducting film in a magnetic field.",

author = "Amit Finkler and Denis Vasyukov and Yair Segev and Lior Neeman and Yonathan Anahory and Yuri Myasoedov and Rappaport, {M. L.} and Huber, {M. E.} and J. Martin and Amnon Yacoby and Eli Zeldov",

year = "2012",

doi = "10.1088/1742-6596/400/5/052004",

language = "English",

volume = "400",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "Institute of Physics Publishing",

number = "PART 4",

note = "26th International Conference on Low Temperature Physics, LT 2011 ; Conference date: 10-08-2011 Through 17-08-2011",

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TY - JOUR

T1 - Nano-sized SQUID-on-tip for scanning probe microscopy

AU - Finkler, Amit

AU - Vasyukov, Denis

AU - Segev, Yair

AU - Neeman, Lior

AU - Anahory, Yonathan

AU - Myasoedov, Yuri

AU - Rappaport, M. L.

AU - Huber, M. E.

AU - Martin, J.

AU - Yacoby, Amnon

AU - Zeldov, Eli

PY - 2012

Y1 - 2012

N2 - We present a SQUID of novel design, which is fabricated on the tip of a pulled quartz tube in a simple 3-step evaporation process without need for any additional processing, patterning, or lithography. The resulting devices have SQUID loops with typical diameters in the range 75-300 nm. They operate in magnetic fields up to 0.6 T and have flux sensitivity of 1.8 μΦ0/Hz1/2 and magnetic field sensitivity of 10 -7 T/Hz1/2, which corresponds to a spin sensitivity of 65 μB/Hz1/2 for aluminum SQUIDs. The shape of the tip and the small area of the SQUID loop, together with its high sensitivity, make our device an excellent tool for scanning SQUID microscopy: With the SQUID-on-tip glued to a tine of a quartz tuning fork, we have succeeded in obtaining magnetic images of a patterned niobium film and of vortices in a superconducting film in a magnetic field.

AB - We present a SQUID of novel design, which is fabricated on the tip of a pulled quartz tube in a simple 3-step evaporation process without need for any additional processing, patterning, or lithography. The resulting devices have SQUID loops with typical diameters in the range 75-300 nm. They operate in magnetic fields up to 0.6 T and have flux sensitivity of 1.8 μΦ0/Hz1/2 and magnetic field sensitivity of 10 -7 T/Hz1/2, which corresponds to a spin sensitivity of 65 μB/Hz1/2 for aluminum SQUIDs. The shape of the tip and the small area of the SQUID loop, together with its high sensitivity, make our device an excellent tool for scanning SQUID microscopy: With the SQUID-on-tip glued to a tine of a quartz tuning fork, we have succeeded in obtaining magnetic images of a patterned niobium film and of vortices in a superconducting film in a magnetic field.

UR - http://www.scopus.com/inward/record.url?scp=84873654994&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/400/5/052004

DO - 10.1088/1742-6596/400/5/052004

M3 - Conference article

SN - 1742-6588

VL - 400

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - PART 4

M1 - 052004

T2 - 26th International Conference on Low Temperature Physics, LT 2011

Y2 - 10 August 2011 through 17 August 2011

ER -

Nano-sized SQUID-on-tip for scanning probe microscopy

Abstract

All Science Journal Classification (ASJC) codes

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