Enhancing the magnetic anisotropy energy by tuning the contact areas of Ag and Ni at the Ag/Ni interface

Yu Ting Chow, Bin Han Jiang, Cheng Hsun Tony Chang, Jyh-Shen Tsay

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Modifying the interfacial conditions of magnetic layers by capping with overlayers can efficiently enhance the magnetic functionality of a material. However, the mechanisms responsible for this are closely related to the crystalline structure, compositional combinations, and interfacial quality, and are generally complex. In this contribution, we explored the use of Ag ultrathin overlayers on annealed . A method for preparing magnetic layers with different levels of enhanced magnetic anisotropy energy was developed. The method essentially involves simply modifying the contact area of the metallic/magnetic interface. A rougher interface results in a larger contact area between the Ag and Ni layers, resulting in an increase in magnetic anisotropy energy. Moreover, post-annealing treatments led to the segregation of Ni atoms, thus making the enhancement in the coercive force even more efficient. A model permits an understanding of the contact area and a strategy for enhancing the magnetic anisotropy energy and the coercive force was developed. Our approaches and the developed model promise to be helpful in terms of developing potential applications of ultrathin magnetic layers in the area of spintronics.

Original languageEnglish
Pages (from-to)1504-1512
Number of pages9
JournalPhysical Chemistry Chemical Physics
Volume20
Issue number3
DOIs
Publication statusPublished - 2018 Jan 1

Fingerprint

Magnetic anisotropy
Anisotropy
Tuning
tuning
Coercive force
anisotropy
Magnetoelectronics
energy
Annealing
Crystalline materials
Atoms
annealing
augmentation
atoms

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Enhancing the magnetic anisotropy energy by tuning the contact areas of Ag and Ni at the Ag/Ni interface. / Chow, Yu Ting; Jiang, Bin Han; Chang, Cheng Hsun Tony; Tsay, Jyh-Shen.

In: Physical Chemistry Chemical Physics, Vol. 20, No. 3, 01.01.2018, p. 1504-1512.

Research output: Contribution to journalArticle

Chow, Yu Ting ; Jiang, Bin Han ; Chang, Cheng Hsun Tony ; Tsay, Jyh-Shen. / Enhancing the magnetic anisotropy energy by tuning the contact areas of Ag and Ni at the Ag/Ni interface. In: Physical Chemistry Chemical Physics. 2018 ; Vol. 20, No. 3. pp. 1504-1512.
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