Magnetic properties of R2Fe3O7 (R=Yb and Lu)

K. Yoshii, Naoshi Ikeda, R. Fukuyama, T. Nagata, Takashi Kambe, Y. Yoneda, T. Fukuda, S. Mori

Research output: Contribution to journalArticle

Abstract

We have investigated the magnetic properties of R2Fe 3O7 (R=Yb and Lu), which belongs to the homologous family of electronic ferroelectric RFe2O4. Magnetization measurements show ferrimagnetic ordering at the Néel temperature (T N) of ∼270 K, which is slightly higher than that of RFe 2O4 (TN∼230-250 K). Observation of spin glass and exchange bias shows a coexistence of ferromagnetic and antiferromagnetic interactions, similarly to RFe2O4. This situation gives rise to a complex magnetic change and a broad peak of magnetic entropy change. Some characteristics, such as refrigeration temperatures higher than in RFe2O4, seem to offer a possibility of this system to applications.

Original languageEnglish
Pages (from-to)34-37
Number of pages4
JournalSolid State Communications
Volume173
DOIs
Publication statusPublished - 2013

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spin exchange
spin glass
Magnetic properties
entropy
magnetic properties
magnetization
Spin glass
Refrigeration
electronics
Ferroelectric materials
Magnetization
Entropy
interactions
Temperature
temperature

Keywords

  • A. Iron oxides
  • A. Spin glass
  • D. Magnetic-phase transition
  • D. Magnetocaloric effect

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Chemistry

Cite this

Magnetic properties of R2Fe3O7 (R=Yb and Lu). / Yoshii, K.; Ikeda, Naoshi; Fukuyama, R.; Nagata, T.; Kambe, Takashi; Yoneda, Y.; Fukuda, T.; Mori, S.

In: Solid State Communications, Vol. 173, 2013, p. 34-37.

Research output: Contribution to journalArticle

Yoshii, K, Ikeda, N, Fukuyama, R, Nagata, T, Kambe, T, Yoneda, Y, Fukuda, T & Mori, S 2013, 'Magnetic properties of R2Fe3O7 (R=Yb and Lu)', Solid State Communications, vol. 173, pp. 34-37. https://doi.org/10.1016/j.ssc.2013.08.030
Yoshii, K. ; Ikeda, Naoshi ; Fukuyama, R. ; Nagata, T. ; Kambe, Takashi ; Yoneda, Y. ; Fukuda, T. ; Mori, S. / Magnetic properties of R2Fe3O7 (R=Yb and Lu). In: Solid State Communications. 2013 ; Vol. 173. pp. 34-37.
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AU - Yoshii, K.

AU - Ikeda, Naoshi

AU - Fukuyama, R.

AU - Nagata, T.

AU - Kambe, Takashi

AU - Yoneda, Y.

AU - Fukuda, T.

AU - Mori, S.

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Y1 - 2013

N2 - We have investigated the magnetic properties of R2Fe 3O7 (R=Yb and Lu), which belongs to the homologous family of electronic ferroelectric RFe2O4. Magnetization measurements show ferrimagnetic ordering at the Néel temperature (T N) of ∼270 K, which is slightly higher than that of RFe 2O4 (TN∼230-250 K). Observation of spin glass and exchange bias shows a coexistence of ferromagnetic and antiferromagnetic interactions, similarly to RFe2O4. This situation gives rise to a complex magnetic change and a broad peak of magnetic entropy change. Some characteristics, such as refrigeration temperatures higher than in RFe2O4, seem to offer a possibility of this system to applications.

AB - We have investigated the magnetic properties of R2Fe 3O7 (R=Yb and Lu), which belongs to the homologous family of electronic ferroelectric RFe2O4. Magnetization measurements show ferrimagnetic ordering at the Néel temperature (T N) of ∼270 K, which is slightly higher than that of RFe 2O4 (TN∼230-250 K). Observation of spin glass and exchange bias shows a coexistence of ferromagnetic and antiferromagnetic interactions, similarly to RFe2O4. This situation gives rise to a complex magnetic change and a broad peak of magnetic entropy change. Some characteristics, such as refrigeration temperatures higher than in RFe2O4, seem to offer a possibility of this system to applications.

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KW - D. Magnetocaloric effect

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