High-Frequency Magnetic Field Energy Imaging of Magnetic Recording Head by Alternating Magnetic Force Microscopy (A-MFM) with Superparamagnetic Tip

Makarova, Marina V.; Suzuki, Kaichi; Kon, Hirofumi; Dubey, Paritosh; Sonobe, Hiroshi; Matsumura, Toru; Saito, Hitoshi

doi:10.3390/app13084843

Open AccessCommunication

High-Frequency Magnetic Field Energy Imaging of Magnetic Recording Head by Alternating Magnetic Force Microscopy (A-MFM) with Superparamagnetic Tip

by

Marina V. Makarova

^1,2,*

,

Kaichi Suzuki

¹,

Hirofumi Kon

¹,

Paritosh Dubey

¹,

Hiroshi Sonobe

¹,

Toru Matsumura

¹

and

Hitoshi Saito

^1,*

¹

Graduate School of Engineering Science, Akita University, Akita 010-8502, Japan

²

Institute of Physics CAS, 18200 Prague, Czech Republic

^*

Authors to whom correspondence should be addressed.

Appl. Sci. 2023, 13(8), 4843; https://doi.org/10.3390/app13084843

Submission received: 7 March 2023 / Revised: 1 April 2023 / Accepted: 7 April 2023 / Published: 12 April 2023

Download

Browse Figures

Review Reports Versions Notes

Abstract

Recent progress in the development of high-frequency (HF) magnetic materials and devices requires the HF imaging of magnetic field and magnetic field response with high spatial resolution. In this work, we proposed HF Alternating Magnetic Force Microscopy (A-MFM) with a superparamagnetic tip to image magnetic field energy near the sample surface. Magnetic field with a frequency from 100 kHz to 1 GHz was emanated by a writing head used for perpendicular magnetic recording. Applied HF magnetic field is amplitude modulated, and magnetic energy determines the frequency modulation of cantilever oscillation in the framework of A-MFM. The frequency modulated oscillation was caused by low frequency alternating magnetic force, which was generated by the interaction between the amplitude modulated AC magnetic field and superparamagnetic tip.

Keywords: high frequency measurement; magnetic field energy imaging; magnetic force microscopy; magnetic recording head

Share and Cite

MDPI and ACS Style

Makarova, M.V.; Suzuki, K.; Kon, H.; Dubey, P.; Sonobe, H.; Matsumura, T.; Saito, H. High-Frequency Magnetic Field Energy Imaging of Magnetic Recording Head by Alternating Magnetic Force Microscopy (A-MFM) with Superparamagnetic Tip. Appl. Sci. 2023, 13, 4843. https://doi.org/10.3390/app13084843

AMA Style

Makarova MV, Suzuki K, Kon H, Dubey P, Sonobe H, Matsumura T, Saito H. High-Frequency Magnetic Field Energy Imaging of Magnetic Recording Head by Alternating Magnetic Force Microscopy (A-MFM) with Superparamagnetic Tip. Applied Sciences. 2023; 13(8):4843. https://doi.org/10.3390/app13084843

Chicago/Turabian Style

Makarova, Marina V., Kaichi Suzuki, Hirofumi Kon, Paritosh Dubey, Hiroshi Sonobe, Toru Matsumura, and Hitoshi Saito. 2023. "High-Frequency Magnetic Field Energy Imaging of Magnetic Recording Head by Alternating Magnetic Force Microscopy (A-MFM) with Superparamagnetic Tip" Applied Sciences 13, no. 8: 4843. https://doi.org/10.3390/app13084843

APA Style

Makarova, M. V., Suzuki, K., Kon, H., Dubey, P., Sonobe, H., Matsumura, T., & Saito, H. (2023). High-Frequency Magnetic Field Energy Imaging of Magnetic Recording Head by Alternating Magnetic Force Microscopy (A-MFM) with Superparamagnetic Tip. Applied Sciences, 13(8), 4843. https://doi.org/10.3390/app13084843

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Menu

High-Frequency Magnetic Field Energy Imaging of Magnetic Recording Head by Alternating Magnetic Force Microscopy (A-MFM) with Superparamagnetic Tip

Abstract

Share and Cite

Article Metrics

Article Access Statistics

Further Information

Guidelines

MDPI Initiatives

Follow MDPI