SQUID Measurements of the Manganese Stearate Two-Dimensional Magnetic Films Prepared by LB Method

Hiromi MATSUSAKA; Eiji HATTA; Toshio ISHII; Koichi MUKASA

doi:10.1380/jsssj.17.412

Hiromi MATSUSAKA, Eiji HATTA, Toshio ISHII, Koichi MUKASA

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JOURNAL FREE ACCESS

1996 Volume 17 Issue 7 Pages 412-416

DOI https://doi.org/10.1380/jsssj.17.412

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Published: July 10, 1996 Received: March 28, 1996 Available on J-STAGE: August 07, 2009 Accepted: April 16, 1996 Advance online publication: - Revised: -
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Date of correction: August 07, 2009 Reason for correction: - Correction: CITATION Details: Wrong : 1) J.F. Stephens and C. Tuck-Lee: Appl. Crystallogr. 2, 1 (1969).
2) M. Pomerantz, F. H. Dacol and A. Segmüller: Phys. Rev. Lett. 40, 246 (1978).
3) M. Pomerantz: Solid State Commun. 27,1413 (1978).
5) J.P.K. Peltonen, P. He and J. B. Resenholm: Langmuir 9, 2365 (1993).
6) B.D. Cullity: “Elements of X-ray Diffraction” (Addison-Wesley, Reading, Mass., 1956) Chap.4.
7) D. Lee and H. W. Pakes: Acta Crystallogr. 25A, 712 (1969).
8) A. Matsuda, M. Sugi, T. Fukui, S. Iizima, M. Miyahara and Y. Otsubo: J. Appl. Phys. 48, 771 (1977).
9) K. Mizushima, T. Nakayama and M. Azuma: Jpn. J. Appl. Phys. 26, 772 (1987).
10) T. Haseda, H. Yamakawa, M. Ishizuka, Y. Okuda, T. Kubota, M. Hata and K. Amaya: Solid State Commun. 24, 599 (1977).
11) D.M. Aranaz and T.R. Lomer: J. Phys. C2, 2431(1969).

Right : 1) J.F. Stephens and C. Tuck-Lee: Appl. Crystallogr. 2, 1 (1969).
2) M. Pomerantz, F. H. Dacol and A. Segmüller: Phys. Rev. Lett. 40, 246 (1978).
3) M. Pomerantz: Solid State Commun. 27,1413 (1978).
5) J.P.K. Peltonen, P. He and J. B. Resenholm: Langmuir 9, 2365 (1993).
6) B.D. Cullity: “Elements of X-ray Diffraction” (Addison-Wesley, Reading, Mass., 1956) Chap.4.
7) D. Lee and H. W. Pakes: Acta Crystallogr. 25A, 712 (1969).
8) A. Matsuda, M. Sugi, T. Fukui, S. Iizima, M. Miyahara and Y. Otsubo: J. Appl. Phys. 48, 771 (1977).
9) K. Mizushima, T. Nakayama and M. Azuma: Jpn. J. Appl. Phys. 26, 772 (1987).
10) T. Haseda, H. Yamakawa, M. Ishizuka, Y. Okuda, T. Kubota, M. Hata and K. Amaya: Solid State Commun. 24, 599 (1977).
11) D.M. Aranaz and T.R. Lomer: J. Phys. C2, 2431(1969).

Abstract

We have investigated the structure and magnetic property of manganese stearate films prepared by Langmuir-Blodgett (LB) method. From the (00l) Bragg peak of the X-ray diffraction pattern, it is found that the films deposited on quartz substrates are Y-type LB film and Mn²⁺ ions in the film are arranged two-dimensionally with a lattice spacing of about 48.8 Å. The angular dependence of the (00l) Bragg peak intensity obtained from the structure factor of manganese stearate LB films calculated is consistent with the experimental data. Using SQUID magnetometry, the magnetic moment of the films was measured down to 1.7 K with applied magnetic field of 100 Oe perpendicular to the film surfaces. The susceptibility behaves according to the Curie-Weiss law in high temperature ranges and gradually deviates from the law below about 20 K. Comparing the magnetic moments measured at 1.7 K with two different applied magnetic fields perpendicular and parallel to the film surface, we observed magnetic anisotropy.

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