Vibration DOS of 57Fe and Zn doped rutile Sn(Sb) oxides

Kiyoshi Nomura, Alexandre Rykov, Z. Németh, Yoshitaka Yoda

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Sn oxides co-doped with Zn, Sb and 57Fe were prepared by sol-gel method, and especially the doping effect of non-magnetic Zn ions was studied. The bulk saturation magnetization is in accordance with the intensity of the magnetic component in Mössbauer spectra. The nuclear inelastic scattering (NIS) spectra of these compounds were measured in SPring 8. The vibration density of states (VDOS) of 57Fe doped Sn(Sb) oxides showed that the softening peaks around 15-20 meV appeared by doping less than 10% Zn ions. The clusters of non-magnetic ZnFe 2O 4 may be most probably formed under the limit of XRD detections. The results suggest that the strengthening of ferromagnetism, which appears in the dilute Zn doping, may occur due to the spin arrangement of dilute Fe 3+ through magnetic defects rather than the formation of magnetic iron oxides.

Original languageEnglish
Pages (from-to)129-133
Number of pages5
JournalHyperfine Interactions
Volume205
Issue number1-3
DOIs
Publication statusPublished - Mar 2012

Fingerprint

DOS
rutile
Oxides
Doping (additives)
vibration
oxides
Ions
nuclear scattering
Inelastic scattering
Ferromagnetism
Saturation magnetization
iron oxides
softening
Sol-gel process
ferromagnetism
ions
inelastic scattering
gels
saturation
magnetization

Keywords

  • Diluted magnetic oxide semiconductors
  • Mössbauer spectroscopy
  • Nuclear inelastic scattering
  • Vibration density of states (VDOS)
  • Zn doping effect of Fe and Sb doped SnO

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

Vibration DOS of 57Fe and Zn doped rutile Sn(Sb) oxides. / Nomura, Kiyoshi; Rykov, Alexandre; Németh, Z.; Yoda, Yoshitaka.

In: Hyperfine Interactions, Vol. 205, No. 1-3, 03.2012, p. 129-133.

Research output: Contribution to journalArticle

Nomura, Kiyoshi ; Rykov, Alexandre ; Németh, Z. ; Yoda, Yoshitaka. / Vibration DOS of 57Fe and Zn doped rutile Sn(Sb) oxides. In: Hyperfine Interactions. 2012 ; Vol. 205, No. 1-3. pp. 129-133.
@article{69e6c849b7d84007af29173ea77a7053,
title = "Vibration DOS of 57Fe and Zn doped rutile Sn(Sb) oxides",
abstract = "Sn oxides co-doped with Zn, Sb and 57Fe were prepared by sol-gel method, and especially the doping effect of non-magnetic Zn ions was studied. The bulk saturation magnetization is in accordance with the intensity of the magnetic component in M{\"o}ssbauer spectra. The nuclear inelastic scattering (NIS) spectra of these compounds were measured in SPring 8. The vibration density of states (VDOS) of 57Fe doped Sn(Sb) oxides showed that the softening peaks around 15-20 meV appeared by doping less than 10{\%} Zn ions. The clusters of non-magnetic ZnFe 2O 4 may be most probably formed under the limit of XRD detections. The results suggest that the strengthening of ferromagnetism, which appears in the dilute Zn doping, may occur due to the spin arrangement of dilute Fe 3+ through magnetic defects rather than the formation of magnetic iron oxides.",
keywords = "Diluted magnetic oxide semiconductors, M{\"o}ssbauer spectroscopy, Nuclear inelastic scattering, Vibration density of states (VDOS), Zn doping effect of Fe and Sb doped SnO",
author = "Kiyoshi Nomura and Alexandre Rykov and Z. N{\'e}meth and Yoshitaka Yoda",
year = "2012",
month = "3",
doi = "10.1007/s10751-011-0496-0",
language = "English",
volume = "205",
pages = "129--133",
journal = "Hyperfine Interaction",
issn = "0304-3843",
publisher = "Springer Netherlands",
number = "1-3",

}

TY - JOUR

T1 - Vibration DOS of 57Fe and Zn doped rutile Sn(Sb) oxides

AU - Nomura, Kiyoshi

AU - Rykov, Alexandre

AU - Németh, Z.

AU - Yoda, Yoshitaka

PY - 2012/3

Y1 - 2012/3

N2 - Sn oxides co-doped with Zn, Sb and 57Fe were prepared by sol-gel method, and especially the doping effect of non-magnetic Zn ions was studied. The bulk saturation magnetization is in accordance with the intensity of the magnetic component in Mössbauer spectra. The nuclear inelastic scattering (NIS) spectra of these compounds were measured in SPring 8. The vibration density of states (VDOS) of 57Fe doped Sn(Sb) oxides showed that the softening peaks around 15-20 meV appeared by doping less than 10% Zn ions. The clusters of non-magnetic ZnFe 2O 4 may be most probably formed under the limit of XRD detections. The results suggest that the strengthening of ferromagnetism, which appears in the dilute Zn doping, may occur due to the spin arrangement of dilute Fe 3+ through magnetic defects rather than the formation of magnetic iron oxides.

AB - Sn oxides co-doped with Zn, Sb and 57Fe were prepared by sol-gel method, and especially the doping effect of non-magnetic Zn ions was studied. The bulk saturation magnetization is in accordance with the intensity of the magnetic component in Mössbauer spectra. The nuclear inelastic scattering (NIS) spectra of these compounds were measured in SPring 8. The vibration density of states (VDOS) of 57Fe doped Sn(Sb) oxides showed that the softening peaks around 15-20 meV appeared by doping less than 10% Zn ions. The clusters of non-magnetic ZnFe 2O 4 may be most probably formed under the limit of XRD detections. The results suggest that the strengthening of ferromagnetism, which appears in the dilute Zn doping, may occur due to the spin arrangement of dilute Fe 3+ through magnetic defects rather than the formation of magnetic iron oxides.

KW - Diluted magnetic oxide semiconductors

KW - Mössbauer spectroscopy

KW - Nuclear inelastic scattering

KW - Vibration density of states (VDOS)

KW - Zn doping effect of Fe and Sb doped SnO

UR - http://www.scopus.com/inward/record.url?scp=84859620736&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859620736&partnerID=8YFLogxK

U2 - 10.1007/s10751-011-0496-0

DO - 10.1007/s10751-011-0496-0

M3 - Article

VL - 205

SP - 129

EP - 133

JO - Hyperfine Interaction

JF - Hyperfine Interaction

SN - 0304-3843

IS - 1-3

ER -