Growth, structure, and magnetism of γ -phase Mn ultrathin films on Cu 3 Au (100)

W. C. Lin; L. C. Lin; T. Y. Chen; B. Y. Wang; Ker Jar Song; Minn Tsong Lin

doi:10.1063/1.1855011

Growth, structure, and magnetism of γ -phase Mn ultrathin films on Cu ₃ Au (100)

W. C. Lin, L. C. Lin, T. Y. Chen, B. Y. Wang, Ker Jar Song, Minn Tsong Lin^*

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

Ultrathin γ -phase (face-center cubic) Mn films were prepared by epitaxial growth on Cu3 Au (100). Kinematic analysis of low energy electron diffraction IV showed a structure transformation of Mn films from nearly face-center cubic to face-center tetragonal with increasing coverage. No ferromagnetic signal in Mn Cu3 Au (100) was observed. For 21 ML capping film of Fe on Mn films, the hysteresis loop of Fe was biased. The bias field for 21 ML Fe15 ML Mn Cu3 Au (100) was ~200 Oe at 110 K with the blocking temperature Tb ~300 K. This observation of exchange bias substantiates the theoretical prediction of antiferromagnetism in γ -phase Mn.

Original language	English
Article number	10K112
Journal	Journal of Applied Physics
Volume	97
Issue number	10
DOIs	https://doi.org/10.1063/1.1855011
Publication status	Published - 2005 May 15
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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@article{f462b26be5474e7d8942df6650d86455,

title = "Growth, structure, and magnetism of γ -phase Mn ultrathin films on Cu 3 Au (100)",

abstract = "Ultrathin γ -phase (face-center cubic) Mn films were prepared by epitaxial growth on Cu3 Au (100). Kinematic analysis of low energy electron diffraction IV showed a structure transformation of Mn films from nearly face-center cubic to face-center tetragonal with increasing coverage. No ferromagnetic signal in Mn Cu3 Au (100) was observed. For 21 ML capping film of Fe on Mn films, the hysteresis loop of Fe was biased. The bias field for 21 ML Fe15 ML Mn Cu3 Au (100) was ~200 Oe at 110 K with the blocking temperature Tb ~300 K. This observation of exchange bias substantiates the theoretical prediction of antiferromagnetism in γ -phase Mn.",

author = "Lin, {W. C.} and Lin, {L. C.} and Chen, {T. Y.} and Wang, {B. Y.} and Song, {Ker Jar} and Lin, {Minn Tsong}",

note = "Funding Information: The authors acknowledge Yu-Wen Liao for the technical support in this experiment. This work was supported by the National Science Council of Taiwan under Grant Nos. NSC 92-2112-M-002-019 and NSC 92-2112-M-002-028, by MOEA 92-EC-17-A-08-51-0006 and by the Ministry of Education. The authors would also like to thank Dr. J. C. Lin of IAMS, who kindly provided us with an energy analyzer for our Auger studies.",

year = "2005",

month = may,

day = "15",

doi = "10.1063/1.1855011",

language = "English",

volume = "97",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

number = "10",

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TY - JOUR

T1 - Growth, structure, and magnetism of γ -phase Mn ultrathin films on Cu 3 Au (100)

AU - Lin, W. C.

AU - Lin, L. C.

AU - Chen, T. Y.

AU - Wang, B. Y.

AU - Song, Ker Jar

AU - Lin, Minn Tsong

N1 - Funding Information: The authors acknowledge Yu-Wen Liao for the technical support in this experiment. This work was supported by the National Science Council of Taiwan under Grant Nos. NSC 92-2112-M-002-019 and NSC 92-2112-M-002-028, by MOEA 92-EC-17-A-08-51-0006 and by the Ministry of Education. The authors would also like to thank Dr. J. C. Lin of IAMS, who kindly provided us with an energy analyzer for our Auger studies.

PY - 2005/5/15

Y1 - 2005/5/15

N2 - Ultrathin γ -phase (face-center cubic) Mn films were prepared by epitaxial growth on Cu3 Au (100). Kinematic analysis of low energy electron diffraction IV showed a structure transformation of Mn films from nearly face-center cubic to face-center tetragonal with increasing coverage. No ferromagnetic signal in Mn Cu3 Au (100) was observed. For 21 ML capping film of Fe on Mn films, the hysteresis loop of Fe was biased. The bias field for 21 ML Fe15 ML Mn Cu3 Au (100) was ~200 Oe at 110 K with the blocking temperature Tb ~300 K. This observation of exchange bias substantiates the theoretical prediction of antiferromagnetism in γ -phase Mn.

AB - Ultrathin γ -phase (face-center cubic) Mn films were prepared by epitaxial growth on Cu3 Au (100). Kinematic analysis of low energy electron diffraction IV showed a structure transformation of Mn films from nearly face-center cubic to face-center tetragonal with increasing coverage. No ferromagnetic signal in Mn Cu3 Au (100) was observed. For 21 ML capping film of Fe on Mn films, the hysteresis loop of Fe was biased. The bias field for 21 ML Fe15 ML Mn Cu3 Au (100) was ~200 Oe at 110 K with the blocking temperature Tb ~300 K. This observation of exchange bias substantiates the theoretical prediction of antiferromagnetism in γ -phase Mn.

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ER -

Growth, structure, and magnetism of γ -phase Mn ultrathin films on Cu ₃ Au (100)

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