MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films

K. Aikoh; A. Tohki; T. Matsui; A. Iwase; T. Satoh; K. Takano; M. Kohka; Y. Saitoh; T. Kamiya; T. Ohkochi; M. Kotsugi; T. Nakamura; T. Kinoshita

doi:10.1107/S0909049511054057

MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films

K. Aikoh, A. Tohki, T. Matsui, A. Iwase, T. Satoh, K. Takano, M. Kohka, Y. Saitoh, T. Kamiya, T. Ohkochi, M. Kotsugi, T. Nakamura, T. Kinoshita

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

5 Citations (Scopus)

Abstract

FeRh thin films were irradiated with a 10 MeV iodine ion microbeam to produce micrometre-scale ferromagnetic microstructures by modifying the local magnetic character from antiferromagnetism to ferromagnetism using ion-microbeam irradiation. Two-dimensional magnetic dot arrays of dimensions ∼2 μm × 4 μm as well as 10 μm × 10 μm were successfully produced on the FeRh surface, which was confirmed by magnetic force microscopy (MFM). The results of photoemission electron microscopy (PEEM) combined with X-ray magnetic circular dichroism reveal that the easy axis of the magnetization of the ion-beam-irradiated ferromagnetism in the FeRh thin films lies in the film planes along the 001 direction of the MgO substrates.

Original language	English
Pages (from-to)	223-226
Number of pages	4
Journal	Journal of Synchrotron Radiation
Volume	19
Issue number	2
DOIs	https://doi.org/10.1107/S0909049511054057
Publication status	Published - 2012 Mar
Externally published	Yes

Keywords

MFM
XMCD-PEEM
energetic ion-beam irradiation
first-order magnetic phase transition
magnetic patterning

ASJC Scopus subject areas

Radiation
Nuclear and High Energy Physics
Instrumentation

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10.1107/S0909049511054057

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Aikoh, K., Tohki, A., Matsui, T., Iwase, A., Satoh, T., Takano, K., Kohka, M., Saitoh, Y., Kamiya, T., Ohkochi, T., Kotsugi, M., Nakamura, T., & Kinoshita, T. (2012). MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films. Journal of Synchrotron Radiation, 19(2), 223-226. https://doi.org/10.1107/S0909049511054057

MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films. / Aikoh, K.; Tohki, A.; Matsui, T.; Iwase, A.; Satoh, T.; Takano, K.; Kohka, M.; Saitoh, Y.; Kamiya, T.; Ohkochi, T.; Kotsugi, M.; Nakamura, T.; Kinoshita, T.

In: Journal of Synchrotron Radiation, Vol. 19, No. 2, 03.2012, p. 223-226.

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

Aikoh, K, Tohki, A, Matsui, T, Iwase, A, Satoh, T, Takano, K, Kohka, M, Saitoh, Y, Kamiya, T, Ohkochi, T, Kotsugi, M, Nakamura, T & Kinoshita, T 2012, 'MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films', Journal of Synchrotron Radiation, vol. 19, no. 2, pp. 223-226. https://doi.org/10.1107/S0909049511054057

Aikoh, K. ; Tohki, A. ; Matsui, T. ; Iwase, A. ; Satoh, T. ; Takano, K. ; Kohka, M. ; Saitoh, Y. ; Kamiya, T. ; Ohkochi, T. ; Kotsugi, M. ; Nakamura, T. ; Kinoshita, T. / MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films. In: Journal of Synchrotron Radiation. 2012 ; Vol. 19, No. 2. pp. 223-226.

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title = "MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films",

abstract = "FeRh thin films were irradiated with a 10 MeV iodine ion microbeam to produce micrometre-scale ferromagnetic microstructures by modifying the local magnetic character from antiferromagnetism to ferromagnetism using ion-microbeam irradiation. Two-dimensional magnetic dot arrays of dimensions ∼2 μm × 4 μm as well as 10 μm × 10 μm were successfully produced on the FeRh surface, which was confirmed by magnetic force microscopy (MFM). The results of photoemission electron microscopy (PEEM) combined with X-ray magnetic circular dichroism reveal that the easy axis of the magnetization of the ion-beam-irradiated ferromagnetism in the FeRh thin films lies in the film planes along the 001 direction of the MgO substrates.",

keywords = "MFM, XMCD-PEEM, energetic ion-beam irradiation, first-order magnetic phase transition, magnetic patterning",

author = "K. Aikoh and A. Tohki and T. Matsui and A. Iwase and T. Satoh and K. Takano and M. Kohka and Y. Saitoh and T. Kamiya and T. Ohkochi and M. Kotsugi and T. Nakamura and T. Kinoshita",

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AU - Aikoh, K.

AU - Tohki, A.

AU - Matsui, T.

AU - Iwase, A.

AU - Satoh, T.

AU - Takano, K.

AU - Kohka, M.

AU - Saitoh, Y.

AU - Kamiya, T.

AU - Ohkochi, T.

AU - Kotsugi, M.

AU - Nakamura, T.

AU - Kinoshita, T.

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AB - FeRh thin films were irradiated with a 10 MeV iodine ion microbeam to produce micrometre-scale ferromagnetic microstructures by modifying the local magnetic character from antiferromagnetism to ferromagnetism using ion-microbeam irradiation. Two-dimensional magnetic dot arrays of dimensions ∼2 μm × 4 μm as well as 10 μm × 10 μm were successfully produced on the FeRh surface, which was confirmed by magnetic force microscopy (MFM). The results of photoemission electron microscopy (PEEM) combined with X-ray magnetic circular dichroism reveal that the easy axis of the magnetization of the ion-beam-irradiated ferromagnetism in the FeRh thin films lies in the film planes along the 001 direction of the MgO substrates.

KW - MFM

KW - XMCD-PEEM

KW - energetic ion-beam irradiation

KW - first-order magnetic phase transition

KW - magnetic patterning

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MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films

Abstract

Keywords

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