Magnetic properties of Co/Ge(111) films: Effects of growth temperatures

S. Tsay; Y. T. Chen; W. C. Cheng; K. C. Wang; Y. D. Yao

doi:10.1002/pssb.200777388

Magnetic properties of Co/Ge(111) films: Effects of growth temperatures

S. Tsay^*
, Y. T. Chen
, W. C. Cheng
, K. C. Wang
, Y. D. Yao

^*Corresponding author for this work

Department of Physics

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

4 Citations (Scopus)

Abstract

Effects of growth temperatures to the magnetic properties of Co/Ge(111) ultrathin films have been studied. For 22 monolayers Co/Ge(l 11) deposited at 200 and 300 K, the difference of the temperatures where ferromagnetism disappears upon annealing treatment is about 75 K. The Co/Ge interface shows a more ordered structure for films deposited at 200 K as revealed by low-energy electron diffraction measurements. The responses of magneto-optic signals could be explained by the different morphologies at the interfaces. A Co/Ge(111) system exhibits a strong in-plane anisotropy that is not altered by the interfacial conditions.

Original language	English
Pages (from-to)	4507-4511
Number of pages	5
Journal	Physica Status Solidi (B) Basic Research
Volume	244
Issue number	12
DOIs	https://doi.org/10.1002/pssb.200777388
Publication status	Published - 2007 Dec

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1002/pssb.200777388

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abstract = "Effects of growth temperatures to the magnetic properties of Co/Ge(111) ultrathin films have been studied. For 22 monolayers Co/Ge(l 11) deposited at 200 and 300 K, the difference of the temperatures where ferromagnetism disappears upon annealing treatment is about 75 K. The Co/Ge interface shows a more ordered structure for films deposited at 200 K as revealed by low-energy electron diffraction measurements. The responses of magneto-optic signals could be explained by the different morphologies at the interfaces. A Co/Ge(111) system exhibits a strong in-plane anisotropy that is not altered by the interfacial conditions.",

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AU - Tsay, S.

AU - Chen, Y. T.

AU - Cheng, W. C.

AU - Wang, K. C.

AU - Yao, Y. D.

PY - 2007/12

Y1 - 2007/12

N2 - Effects of growth temperatures to the magnetic properties of Co/Ge(111) ultrathin films have been studied. For 22 monolayers Co/Ge(l 11) deposited at 200 and 300 K, the difference of the temperatures where ferromagnetism disappears upon annealing treatment is about 75 K. The Co/Ge interface shows a more ordered structure for films deposited at 200 K as revealed by low-energy electron diffraction measurements. The responses of magneto-optic signals could be explained by the different morphologies at the interfaces. A Co/Ge(111) system exhibits a strong in-plane anisotropy that is not altered by the interfacial conditions.

AB - Effects of growth temperatures to the magnetic properties of Co/Ge(111) ultrathin films have been studied. For 22 monolayers Co/Ge(l 11) deposited at 200 and 300 K, the difference of the temperatures where ferromagnetism disappears upon annealing treatment is about 75 K. The Co/Ge interface shows a more ordered structure for films deposited at 200 K as revealed by low-energy electron diffraction measurements. The responses of magneto-optic signals could be explained by the different morphologies at the interfaces. A Co/Ge(111) system exhibits a strong in-plane anisotropy that is not altered by the interfacial conditions.

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JF - Physica Status Solidi (B) Basic Research

IS - 12

ER -

Magnetic properties of Co/Ge(111) films: Effects of growth temperatures

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