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Issue 13, 2013
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High sensitivity piezomagnetic force microscopy for quantitative probing of magnetic materials at the nanoscale†

Qian Nataly Chen,‡a   Feiyue Ma,‡a   Shuhong Xie,b   Yuanming Liu,a   Roger Prokschc  and  Jiangyu Li*a  
Author affiliations

* Corresponding authors

a Department of Mechanical Engineering, University of Washington, Seattle, WA 98195-2600, USA
E-mail: jjli@u.washington.edu

b Faculty of Materials, Optoelectronics and Physics, and Key Laboratory of Low Dimensional Materials & Application Technology of Ministry of Education, Xiangtan University, Xiangtan, Hunan 411105, China

c Asylum Research, 6310 Hollister Ave., Santa Barbara, CA 93117, USA

Abstract

Accurate scanning probing of magnetic materials at the nanoscale is essential for developing and characterizing magnetic nanostructures, yet quantitative analysis is difficult using the state of the art magnetic force microscopy, and has limited spatial resolution and sensitivity. In this communication, we develop a novel piezomagnetic force microscopy (PmFM) technique, with the imaging principle based on the detection of magnetostrictive response excited by an external magnetic field. In combination with the dual AC resonance tracking (DART) technique, the contact stiffness and energy dissipation of the samples can be simultaneously mapped along with the PmFM phase and amplitude, enabling quantitative probing of magnetic materials and structures at the nanoscale with high sensitivity and spatial resolution. PmFM has been applied to probe magnetic soft discs and cobalt ferrite thin films, demonstrating it as a powerful tool for a wide range of magnetic materials.

Graphical abstract: High sensitivity piezomagnetic force microscopy for quantitative probing of magnetic materials at the nanoscale

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Supplementary files

Article information

https://doi.org/10.1039/C3NR00770G
Submitted
12 Feb 2013
Accepted
30 Apr 2013
First published
07 May 2013
Nanoscale, 2013,5, 5747-5751
Article type
Communication
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High sensitivity piezomagnetic force microscopy for quantitative probing of magnetic materials at the nanoscale

Q. N. Chen, F. Ma, S. Xie, Y. Liu, R. Proksch and J. Li, Nanoscale, 2013, 5, 5747
DOI: 10.1039/C3NR00770G

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