The influence of the different input power and heat treatment on structural and magnetic properties of Ag73Co27 magnetic thin films

Huda Abdullah, S. A. Halim

Research output: Contribution to journalArticle

Abstract

73% Ag ~ 27% Co film were deposited onto (100) Si substrate via radio frequency (RF) magnetron sputtering. The influence of RF input power on magnetic and structural properties of films was investigated. The XRD spectra show that a set of (111), (200), (220) and (311) peaks were observed. X-ray diffraction (XRD) measurements indicate that the films had fcc structure and exhibited a dominant (111) orientation. After annealing at 300oC for 30 minutes in Argon ambient, the particle grew bigger, the films orientation did not change obviously, still showed (111) orientation. Giant Magnetoresistance (GMR) effects were characterized by using four-point probe technique. The GMR effects are measured with a magnetic field of B ≤ 1T at temperature 300K. GMR values up 0.6% for as deposited, 3.45% for annealed and measured at 300K for sample with RF input power 950W. The higher MR value was observed as the size distribution of magnetic particle become large. In this case, it shows that MR effect is structure (size and distribution) and temperature dependence.

Original languageEnglish
Pages (from-to)388-395
Number of pages8
JournalEuropean Journal of Scientific Research
Volume29
Issue number3
Publication statusPublished - 2009

Fingerprint

magnetic properties
Magnetic thin films
Heat Treatment
Magnetic Properties
magnetic property
Radio
Giant magnetoresistance
Magnetoresistance
films (materials)
Structural Properties
Thin Films
Structural properties
Magnetic properties
Hot Temperature
Heat treatment
heat treatment
radio
X-Ray Diffraction
X-ray Diffraction
X-ray diffraction

Keywords

  • AFM
  • GMR
  • Sputtering

ASJC Scopus subject areas

  • General

Cite this

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title = "The influence of the different input power and heat treatment on structural and magnetic properties of Ag73Co27 magnetic thin films",
abstract = "73{\%} Ag ~ 27{\%} Co film were deposited onto (100) Si substrate via radio frequency (RF) magnetron sputtering. The influence of RF input power on magnetic and structural properties of films was investigated. The XRD spectra show that a set of (111), (200), (220) and (311) peaks were observed. X-ray diffraction (XRD) measurements indicate that the films had fcc structure and exhibited a dominant (111) orientation. After annealing at 300oC for 30 minutes in Argon ambient, the particle grew bigger, the films orientation did not change obviously, still showed (111) orientation. Giant Magnetoresistance (GMR) effects were characterized by using four-point probe technique. The GMR effects are measured with a magnetic field of B ≤ 1T at temperature 300K. GMR values up 0.6{\%} for as deposited, 3.45{\%} for annealed and measured at 300K for sample with RF input power 950W. The higher MR value was observed as the size distribution of magnetic particle become large. In this case, it shows that MR effect is structure (size and distribution) and temperature dependence.",
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T1 - The influence of the different input power and heat treatment on structural and magnetic properties of Ag73Co27 magnetic thin films

AU - Abdullah, Huda

AU - Halim, S. A.

PY - 2009

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N2 - 73% Ag ~ 27% Co film were deposited onto (100) Si substrate via radio frequency (RF) magnetron sputtering. The influence of RF input power on magnetic and structural properties of films was investigated. The XRD spectra show that a set of (111), (200), (220) and (311) peaks were observed. X-ray diffraction (XRD) measurements indicate that the films had fcc structure and exhibited a dominant (111) orientation. After annealing at 300oC for 30 minutes in Argon ambient, the particle grew bigger, the films orientation did not change obviously, still showed (111) orientation. Giant Magnetoresistance (GMR) effects were characterized by using four-point probe technique. The GMR effects are measured with a magnetic field of B ≤ 1T at temperature 300K. GMR values up 0.6% for as deposited, 3.45% for annealed and measured at 300K for sample with RF input power 950W. The higher MR value was observed as the size distribution of magnetic particle become large. In this case, it shows that MR effect is structure (size and distribution) and temperature dependence.

AB - 73% Ag ~ 27% Co film were deposited onto (100) Si substrate via radio frequency (RF) magnetron sputtering. The influence of RF input power on magnetic and structural properties of films was investigated. The XRD spectra show that a set of (111), (200), (220) and (311) peaks were observed. X-ray diffraction (XRD) measurements indicate that the films had fcc structure and exhibited a dominant (111) orientation. After annealing at 300oC for 30 minutes in Argon ambient, the particle grew bigger, the films orientation did not change obviously, still showed (111) orientation. Giant Magnetoresistance (GMR) effects were characterized by using four-point probe technique. The GMR effects are measured with a magnetic field of B ≤ 1T at temperature 300K. GMR values up 0.6% for as deposited, 3.45% for annealed and measured at 300K for sample with RF input power 950W. The higher MR value was observed as the size distribution of magnetic particle become large. In this case, it shows that MR effect is structure (size and distribution) and temperature dependence.

KW - AFM

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