The optical and magnetic properties of Ni+-implanted silica

Tetsuhiko Isobe, Seung Y. Park, Robert A. Weeks, Raymond A. Zuhr

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Fused silica plates were implanted with 58Ni+ at room temperature to a dose of 6 × 1016 ions cm-2 under the condition of 160 keV and 3 μA cm-2. The changes in the optical and magnetic properties of Ni+-implanted silica by annealing at 800°C for 4 h in air, N2 and Ar with 4% H2 were measured to determine the chemical state of implanted nickel species. The absence of change in the depth distribution of Ni after annealing under these conditions indicates that nickel species did not dissolve in silica. The absorption band due to the surface plasmon resonance of Ni particles at ∼ 3.6 eV decreased and increased on annealing in air and Ar with 4% H2, respectively. The intensity of the ferromagnetic resonance signal measured at -196°C was larger than that at room temperature, both increasing with heat treatment. The resonance field depended on the angle between the implanted surface and the applied magnetic field. It is concluded that Ni particles embedded in silica by ion-implantation were magnetized in the plane normal to the ion beam and that super-paramagnetic Ni changed to ferromagnetic Ni during the thermal treatment.

Original languageEnglish
Pages (from-to)173-180
Number of pages8
JournalJournal of Non-Crystalline Solids
Volume189
Issue number1-2
Publication statusPublished - 1995 Aug 2
Externally publishedYes

Fingerprint

Silicon Dioxide
Magnetic properties
Optical properties
Silica
Annealing
silicon dioxide
magnetic properties
Nickel
optical properties
Heat treatment
annealing
Ferromagnetic resonance
Surface plasmon resonance
nickel
Fused silica
Air
Ion implantation
Ion beams
Absorption spectra
air

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Chemistry
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites

Cite this

Isobe, T., Park, S. Y., Weeks, R. A., & Zuhr, R. A. (1995). The optical and magnetic properties of Ni+-implanted silica. Journal of Non-Crystalline Solids, 189(1-2), 173-180.

The optical and magnetic properties of Ni+-implanted silica. / Isobe, Tetsuhiko; Park, Seung Y.; Weeks, Robert A.; Zuhr, Raymond A.

In: Journal of Non-Crystalline Solids, Vol. 189, No. 1-2, 02.08.1995, p. 173-180.

Research output: Contribution to journalArticle

Isobe, T, Park, SY, Weeks, RA & Zuhr, RA 1995, 'The optical and magnetic properties of Ni+-implanted silica', Journal of Non-Crystalline Solids, vol. 189, no. 1-2, pp. 173-180.
Isobe, Tetsuhiko ; Park, Seung Y. ; Weeks, Robert A. ; Zuhr, Raymond A. / The optical and magnetic properties of Ni+-implanted silica. In: Journal of Non-Crystalline Solids. 1995 ; Vol. 189, No. 1-2. pp. 173-180.
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