Magnetic structure of Ga2-xFexO3

R. B. Frankel, N. A. Blum, S. Foner, Arthur J Freeman, M. Schieber

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

High-magnetic-field-Mössbauer and magnetic-moment experiments have been performed with Ga2-xFexO3. This magnetic system is of considerable interest because it is piezoelectric, weakly magnetic,1 and magnetoelectric.2 The crystal structure has been determined3 and a magnetic ordering inferred.3 The magnetic-moment measurements were made using a vibrating sample magnetometer in fields up to 75 kOe. The samples used for the Mössbauer absorption experiments consisted of 57Fe enriched powders, grown from a flux, embedded in lucite, and having x=0.8 and 1.2. A mosaic absorber made of small x-ray oriented single crystals was also studied. Measurements were made over the temperature range 4.2°to 320°K and in external magnetic fields up to 130 kOe. At low temperatures the zero-external field-absorption spectra indicate that there are at least two magnetically nonequivalent sites. In a large external field the hyperfine spectrum lines corresponding to Δm=0 vanish, while each of the outer lines (corresponding to Δm=±1) splits into two well-resolved components of unequal intensity. Detailed analysis of the experimental results for both the single crystal and polycrystalline absorbers indicates that at zero external field all spins lie in the a-c plane (c4 rather than to a canted spin structure, and that the spins are unequally divided between the two sublattices. A detailed account of these measurements will be published elsewhere.

Original languageEnglish
Pages (from-to)1403
Number of pages1
JournalJournal of Applied Physics
Volume37
Issue number3
DOIs
Publication statusPublished - 1966

Fingerprint

absorbers
magnetic moments
single crystals
magnetic fields
polymethyl methacrylate
magnetometers
sublattices
line spectra
absorption spectra
crystal structure
x rays
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Frankel, R. B., Blum, N. A., Foner, S., Freeman, A. J., & Schieber, M. (1966). Magnetic structure of Ga2-xFexO3. Journal of Applied Physics, 37(3), 1403. https://doi.org/10.1063/1.1708492

Magnetic structure of Ga2-xFexO3. / Frankel, R. B.; Blum, N. A.; Foner, S.; Freeman, Arthur J; Schieber, M.

In: Journal of Applied Physics, Vol. 37, No. 3, 1966, p. 1403.

Research output: Contribution to journalArticle

Frankel, RB, Blum, NA, Foner, S, Freeman, AJ & Schieber, M 1966, 'Magnetic structure of Ga2-xFexO3', Journal of Applied Physics, vol. 37, no. 3, pp. 1403. https://doi.org/10.1063/1.1708492
Frankel, R. B. ; Blum, N. A. ; Foner, S. ; Freeman, Arthur J ; Schieber, M. / Magnetic structure of Ga2-xFexO3. In: Journal of Applied Physics. 1966 ; Vol. 37, No. 3. pp. 1403.
@article{047a72628dff412abf6cd1263fa9c99c,
title = "Magnetic structure of Ga2-xFexO3",
abstract = "High-magnetic-field-M{\"o}ssbauer and magnetic-moment experiments have been performed with Ga2-xFexO3. This magnetic system is of considerable interest because it is piezoelectric, weakly magnetic,1 and magnetoelectric.2 The crystal structure has been determined3 and a magnetic ordering inferred.3 The magnetic-moment measurements were made using a vibrating sample magnetometer in fields up to 75 kOe. The samples used for the M{\"o}ssbauer absorption experiments consisted of 57Fe enriched powders, grown from a flux, embedded in lucite, and having x=0.8 and 1.2. A mosaic absorber made of small x-ray oriented single crystals was also studied. Measurements were made over the temperature range 4.2°to 320°K and in external magnetic fields up to 130 kOe. At low temperatures the zero-external field-absorption spectra indicate that there are at least two magnetically nonequivalent sites. In a large external field the hyperfine spectrum lines corresponding to Δm=0 vanish, while each of the outer lines (corresponding to Δm=±1) splits into two well-resolved components of unequal intensity. Detailed analysis of the experimental results for both the single crystal and polycrystalline absorbers indicates that at zero external field all spins lie in the a-c plane (c4 rather than to a canted spin structure, and that the spins are unequally divided between the two sublattices. A detailed account of these measurements will be published elsewhere.",
author = "Frankel, {R. B.} and Blum, {N. A.} and S. Foner and Freeman, {Arthur J} and M. Schieber",
year = "1966",
doi = "10.1063/1.1708492",
language = "English",
volume = "37",
pages = "1403",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "3",

}

TY - JOUR

T1 - Magnetic structure of Ga2-xFexO3

AU - Frankel, R. B.

AU - Blum, N. A.

AU - Foner, S.

AU - Freeman, Arthur J

AU - Schieber, M.

PY - 1966

Y1 - 1966

N2 - High-magnetic-field-Mössbauer and magnetic-moment experiments have been performed with Ga2-xFexO3. This magnetic system is of considerable interest because it is piezoelectric, weakly magnetic,1 and magnetoelectric.2 The crystal structure has been determined3 and a magnetic ordering inferred.3 The magnetic-moment measurements were made using a vibrating sample magnetometer in fields up to 75 kOe. The samples used for the Mössbauer absorption experiments consisted of 57Fe enriched powders, grown from a flux, embedded in lucite, and having x=0.8 and 1.2. A mosaic absorber made of small x-ray oriented single crystals was also studied. Measurements were made over the temperature range 4.2°to 320°K and in external magnetic fields up to 130 kOe. At low temperatures the zero-external field-absorption spectra indicate that there are at least two magnetically nonequivalent sites. In a large external field the hyperfine spectrum lines corresponding to Δm=0 vanish, while each of the outer lines (corresponding to Δm=±1) splits into two well-resolved components of unequal intensity. Detailed analysis of the experimental results for both the single crystal and polycrystalline absorbers indicates that at zero external field all spins lie in the a-c plane (c4 rather than to a canted spin structure, and that the spins are unequally divided between the two sublattices. A detailed account of these measurements will be published elsewhere.

AB - High-magnetic-field-Mössbauer and magnetic-moment experiments have been performed with Ga2-xFexO3. This magnetic system is of considerable interest because it is piezoelectric, weakly magnetic,1 and magnetoelectric.2 The crystal structure has been determined3 and a magnetic ordering inferred.3 The magnetic-moment measurements were made using a vibrating sample magnetometer in fields up to 75 kOe. The samples used for the Mössbauer absorption experiments consisted of 57Fe enriched powders, grown from a flux, embedded in lucite, and having x=0.8 and 1.2. A mosaic absorber made of small x-ray oriented single crystals was also studied. Measurements were made over the temperature range 4.2°to 320°K and in external magnetic fields up to 130 kOe. At low temperatures the zero-external field-absorption spectra indicate that there are at least two magnetically nonequivalent sites. In a large external field the hyperfine spectrum lines corresponding to Δm=0 vanish, while each of the outer lines (corresponding to Δm=±1) splits into two well-resolved components of unequal intensity. Detailed analysis of the experimental results for both the single crystal and polycrystalline absorbers indicates that at zero external field all spins lie in the a-c plane (c4 rather than to a canted spin structure, and that the spins are unequally divided between the two sublattices. A detailed account of these measurements will be published elsewhere.

UR - http://www.scopus.com/inward/record.url?scp=36849107914&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36849107914&partnerID=8YFLogxK

U2 - 10.1063/1.1708492

DO - 10.1063/1.1708492

M3 - Article

VL - 37

SP - 1403

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 3

ER -