Phase-locked cantilever magnetometry

Joonho Jang; Raffi Budakian; Yoshiteru Maeno

doi:10.1063/1.3572026

Phase-locked cantilever magnetometry

Joonho Jang
, Raffi Budakian
, Yoshiteru Maeno

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

Abstract

We describe a feedback-based dynamic cantilever magnetometry technique capable of achieving thermal limited magnetic moment sensitivity with low applied fields. Using this technique, we have observed periodic entry of vortices into mesoscopic Sr₂ RuO₄ rings. The quantized jump in the magnetic moment of the particle produced by individual vortices was measured with a resolution of 7× 10-16 emu with an applied field of 1 Oe.

Original language	English (US)
Article number	132510
Journal	Applied Physics Letters
Volume	98
Issue number	13
DOIs	https://doi.org/10.1063/1.3572026
State	Published - Mar 28 2011
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3572026

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abstract = "We describe a feedback-based dynamic cantilever magnetometry technique capable of achieving thermal limited magnetic moment sensitivity with low applied fields. Using this technique, we have observed periodic entry of vortices into mesoscopic Sr2 RuO4 rings. The quantized jump in the magnetic moment of the particle produced by individual vortices was measured with a resolution of 7× 10-16 emu with an applied field of 1 Oe.",

author = "Joonho Jang and Raffi Budakian and Yoshiteru Maeno",

note = "We thank Dale Van Harlingen, David G. Ferguson, Victor Vakaryuk and Suk Bum Chung for valuable discussions. This work was supported by the U.S. Department of Energy Office of Basic Sciences, Grant No. DEFG02-07ER46453 through the Frederick Seitz Materials Research Laboratory at the University of Illinois at Urbana Champaign, and the Grants-in-Aid for the “Topological Quantum Phenomena” and the Global COE “Next Generation of Physics” programs from the Ministry of Education, Culture, Sports, Science and Technology of Japan, Grant No. 22103002.",

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AU - Maeno, Yoshiteru

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PY - 2011/3/28

Y1 - 2011/3/28

N2 - We describe a feedback-based dynamic cantilever magnetometry technique capable of achieving thermal limited magnetic moment sensitivity with low applied fields. Using this technique, we have observed periodic entry of vortices into mesoscopic Sr2 RuO4 rings. The quantized jump in the magnetic moment of the particle produced by individual vortices was measured with a resolution of 7× 10-16 emu with an applied field of 1 Oe.

AB - We describe a feedback-based dynamic cantilever magnetometry technique capable of achieving thermal limited magnetic moment sensitivity with low applied fields. Using this technique, we have observed periodic entry of vortices into mesoscopic Sr2 RuO4 rings. The quantized jump in the magnetic moment of the particle produced by individual vortices was measured with a resolution of 7× 10-16 emu with an applied field of 1 Oe.

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Phase-locked cantilever magnetometry

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