High sensitivity SQUID susceptibility measurements

B. Kalisky

High sensitivity SQUID susceptibility measurements

Department of Physics

Research output: Contribution to conference › Paper › peer-review

Abstract

Scanning superconducting quantum interference device (SQUID) sensors have high sensitivity to magnetic flux (10−6Φ0/ √ Hz) and magnetic moment (∼ 100 electron spins) under reasonable scanning conditions. In addition, a single turn field coil co-centered with the SQUID sensing loop provides excitation for simultaneous measurement of low field susceptibility, with sensitivity of χ ∼ 10−6 at a spatial resolution of a few microns. I will present our recent measurements on several systems which exhibit weak susceptometry signals: thin film paramagnetic LaNiO3 that are (hopefully) the precursors to engineered superconducting films; individual magnetotactic bacteria, which are used as MRI contrast agents; and twinned high critical temperature cuprate and pnictide superconducting samples that may experience variations in the superfluid density at the twin boundary

Original language	English
State	Published - 2011
Event	March Meeting of the American Physical Society - Dallas, Texas, United States Duration: 21 Mar 2011 → 25 Mar 2011

Conference

Conference	March Meeting of the American Physical Society
Country/Territory	United States
City	Dallas, Texas
Period	21/03/11 → 25/03/11

Cite this

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title = "High sensitivity SQUID susceptibility measurements",

abstract = "Scanning superconducting quantum interference device (SQUID) sensors have high sensitivity to magnetic flux (10−6Φ0/ √ Hz) and magnetic moment (∼ 100 electron spins) under reasonable scanning conditions. In addition, a single turn field coil co-centered with the SQUID sensing loop provides excitation for simultaneous measurement of low field susceptibility, with sensitivity of χ ∼ 10−6 at a spatial resolution of a few microns. I will present our recent measurements on several systems which exhibit weak susceptometry signals: thin film paramagnetic LaNiO3 that are (hopefully) the precursors to engineered superconducting films; individual magnetotactic bacteria, which are used as MRI contrast agents; and twinned high critical temperature cuprate and pnictide superconducting samples that may experience variations in the superfluid density at the twin boundary",

author = "B. Kalisky",

year = "2011",

language = "אנגלית",

note = "March Meeting of the American Physical Society ; Conference date: 21-03-2011 Through 25-03-2011",

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T1 - High sensitivity SQUID susceptibility measurements

AU - Kalisky, B.

PY - 2011

Y1 - 2011

N2 - Scanning superconducting quantum interference device (SQUID) sensors have high sensitivity to magnetic flux (10−6Φ0/ √ Hz) and magnetic moment (∼ 100 electron spins) under reasonable scanning conditions. In addition, a single turn field coil co-centered with the SQUID sensing loop provides excitation for simultaneous measurement of low field susceptibility, with sensitivity of χ ∼ 10−6 at a spatial resolution of a few microns. I will present our recent measurements on several systems which exhibit weak susceptometry signals: thin film paramagnetic LaNiO3 that are (hopefully) the precursors to engineered superconducting films; individual magnetotactic bacteria, which are used as MRI contrast agents; and twinned high critical temperature cuprate and pnictide superconducting samples that may experience variations in the superfluid density at the twin boundary

AB - Scanning superconducting quantum interference device (SQUID) sensors have high sensitivity to magnetic flux (10−6Φ0/ √ Hz) and magnetic moment (∼ 100 electron spins) under reasonable scanning conditions. In addition, a single turn field coil co-centered with the SQUID sensing loop provides excitation for simultaneous measurement of low field susceptibility, with sensitivity of χ ∼ 10−6 at a spatial resolution of a few microns. I will present our recent measurements on several systems which exhibit weak susceptometry signals: thin film paramagnetic LaNiO3 that are (hopefully) the precursors to engineered superconducting films; individual magnetotactic bacteria, which are used as MRI contrast agents; and twinned high critical temperature cuprate and pnictide superconducting samples that may experience variations in the superfluid density at the twin boundary

UR - https://meetings.aps.org/Meeting/MAR11/Session/D16.7

M3 - ???researchoutput.researchoutputtypes.contributiontoconference.paper???

T2 - March Meeting of the American Physical Society

Y2 - 21 March 2011 through 25 March 2011

ER -

High sensitivity SQUID susceptibility measurements

Abstract

Conference

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Superconducting Quantum Interference Device (SQUID)

March Meeting of the American Physical Society

Cite this

High sensitivity SQUID susceptibility measurements

Abstract

Conference

Other files and links

Fingerprint

Equipment

Superconducting Quantum Interference Device (SQUID)

Activities

March Meeting of the American Physical Society

Cite this