Generation of superparamagnetism in metallic α-iron by swift heavy ion irradiation

E. Kuzmann; S. Stichleutner; Z. Homonnay; K. Havancsák; C.U. Chisholm; M. El-Sharif; V.A. Skuratov; A. Nakanishi; K. Nomura

doi:10.1016/j.radphyschem.2016.06.032

Generation of superparamagnetism in metallic α-iron by swift heavy ion irradiation

E. Kuzmann^*, S. Stichleutner, Z. Homonnay, K. Havancsák, C.U. Chisholm, M. El-Sharif, V.A. Skuratov, A. Nakanishi, K. Nomura

^*Corresponding author for this work

Mechanical Engineering

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

3 Citations (Scopus)

138 Downloads (Pure)

Abstract

⁵⁷Fe conversion electron Mössbauer spectroscopy was used to study the effect of swift heavy ion irradiation on electrochemically deposited metallic pure α-iron. We succeeded in preparing superparamagnetic iron by irradiating the electrochemically prepared thin α-iron films using 247 MeV Kr ions with a fluence of 1×10 ¹³ ion cm ⁻² which converted 50% of crystalline α-iron into amorphous and superparamagnetic phases, the latter being >20%. The results are discussed in terms of the thermal spike model for the formation of the amorphous phase which could be essential for the formation of superparamagnetic iron.

Original language	English
Pages (from-to)	165-168
Number of pages	4
Journal	Radiation Physics and Chemistry
Volume	127
Early online date	30 Jun 2016
DOIs	https://doi.org/10.1016/j.radphyschem.2016.06.032
Publication status	Published - Oct 2016

Keywords

superparamagnetic iron; amorphous iron; 57Fe conversion electron Mössbauer spectroscopy; Swift heavy ion irradiation; electrodeposition

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10.1016/j.radphyschem.2016.06.032

Kuzmann, E et al (2016) Generation of superparamagnetism in metallic a-iron by swift heavy ion irradiation
© 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Author accepted manuscript, 315 KBLicence: CC BY-NC-ND

Cite this

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title = "Generation of superparamagnetism in metallic α-iron by swift heavy ion irradiation",

abstract = "57Fe conversion electron M{\"o}ssbauer spectroscopy was used to study the effect of swift heavy ion irradiation on electrochemically deposited metallic pure α-iron. We succeeded in preparing superparamagnetic iron by irradiating the electrochemically prepared thin α-iron films using 247 MeV Kr ions with a fluence of 1×10 13 ion cm −2 which converted 50\% of crystalline α-iron into amorphous and superparamagnetic phases, the latter being >20\%. The results are discussed in terms of the thermal spike model for the formation of the amorphous phase which could be essential for the formation of superparamagnetic iron.",

keywords = "superparamagnetic iron; amorphous iron; 57Fe conversion electron M{\"o}ssbauer spectroscopy; Swift heavy ion irradiation; electrodeposition",

author = "E. Kuzmann and S. Stichleutner and Z. Homonnay and K. Havancs{\'a}k and C.U. Chisholm and M. El-Sharif and V.A. Skuratov and A. Nakanishi and K. Nomura",

note = "Accepted: 30-6-16 (in SAN) Online pub: 30-6-16 AAM: not yet uploaded, provided 30/9/16 12m embargo required Created as conference paper in error - changed template to article ET ",

year = "2016",

month = oct,

doi = "10.1016/j.radphyschem.2016.06.032",

language = "English",

volume = "127",

pages = "165--168",

journal = "Radiation Physics and Chemistry",

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TY - JOUR

T1 - Generation of superparamagnetism in metallic α-iron by swift heavy ion irradiation

AU - Kuzmann, E.

AU - Stichleutner, S.

AU - Homonnay, Z.

AU - Havancsák, K.

AU - Chisholm, C.U.

AU - El-Sharif, M.

AU - Skuratov, V.A.

AU - Nakanishi, A.

AU - Nomura, K.

N1 - Accepted: 30-6-16 (in SAN) Online pub: 30-6-16 AAM: not yet uploaded, provided 30/9/16 12m embargo required Created as conference paper in error - changed template to article ET

PY - 2016/10

Y1 - 2016/10

N2 - 57Fe conversion electron Mössbauer spectroscopy was used to study the effect of swift heavy ion irradiation on electrochemically deposited metallic pure α-iron. We succeeded in preparing superparamagnetic iron by irradiating the electrochemically prepared thin α-iron films using 247 MeV Kr ions with a fluence of 1×10 13 ion cm −2 which converted 50% of crystalline α-iron into amorphous and superparamagnetic phases, the latter being >20%. The results are discussed in terms of the thermal spike model for the formation of the amorphous phase which could be essential for the formation of superparamagnetic iron.

AB - 57Fe conversion electron Mössbauer spectroscopy was used to study the effect of swift heavy ion irradiation on electrochemically deposited metallic pure α-iron. We succeeded in preparing superparamagnetic iron by irradiating the electrochemically prepared thin α-iron films using 247 MeV Kr ions with a fluence of 1×10 13 ion cm −2 which converted 50% of crystalline α-iron into amorphous and superparamagnetic phases, the latter being >20%. The results are discussed in terms of the thermal spike model for the formation of the amorphous phase which could be essential for the formation of superparamagnetic iron.

KW - superparamagnetic iron; amorphous iron; 57Fe conversion electron Mössbauer spectroscopy; Swift heavy ion irradiation; electrodeposition

U2 - 10.1016/j.radphyschem.2016.06.032

DO - 10.1016/j.radphyschem.2016.06.032

M3 - Article

SN - 0969-806X

VL - 127

SP - 165

EP - 168

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

ER -

Generation of superparamagnetism in metallic α-iron by swift heavy ion irradiation

Abstract

Keywords

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