Field-induced magnetic properties in RCrO4 oxides (R = Pr, Gd, Tb, Tm, and Yb)

E. Jiménez; J. Isasi; R. Sáez-Puche

doi:10.1006/jssc.2001.9476

Field-induced magnetic properties in RCrO₄ oxides (R = Pr, Gd, Tb, Tm, and Yb)

E. Jiménez, J. Isasi, R. Sáez-Puche^*

^*Corresponding author for this work

Metallurgy and Materials

Research output: Contribution to journal › Article › peer-review

Abstract

RCrO₄ oxides (R=Pr, Gd, Tb, Tm, and Yb) have been synthesized at 773K using the corresponding nitrates as precursors. X-ray diffraction data reveal that these samples are single phases and crystallize with the zircon-type structure, showing tetragonal symmetry, space group I4₁/amd. All the compounds are antiferromagnetic and the Néel temperature, which depends on the R³⁺ ion, takes values lower than 30 K. The presence of a canting appears to be responsible for the negative values of the magnetic susceptibility found below the compensation temperature. This uncommon phenomenon is named reversal of magnetization. It is field-dependent, being suppressed at 500 Oe for the TmCrO₄ compound. The highest value of the compensation temperature (24K) corresponds to the YbCrO₄ oxide. A metamagnetic transition has been observed in all cases at critical fields ranging from 225Oe (GdCrO₄) to 1600 Oe (YbCrO₄).

Original language	English
Pages (from-to)	313-319
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	164
Issue number	2
DOIs	https://doi.org/10.1006/jssc.2001.9476
Publication status	Published - 2002

Bibliographical note

Funding Information:
We thank DGICYT for financial support, under the project MAT-2000-0753-C02-01.

Keywords

Antiferromagnetism
Lanthanide chromates
Metamagnetism
Reversal of magnetization
Zircon-type structure

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1006/jssc.2001.9476

Cite this

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title = "Field-induced magnetic properties in RCrO4 oxides (R = Pr, Gd, Tb, Tm, and Yb)",

abstract = "RCrO4 oxides (R=Pr, Gd, Tb, Tm, and Yb) have been synthesized at 773K using the corresponding nitrates as precursors. X-ray diffraction data reveal that these samples are single phases and crystallize with the zircon-type structure, showing tetragonal symmetry, space group I41/amd. All the compounds are antiferromagnetic and the N{\'e}el temperature, which depends on the R3+ ion, takes values lower than 30 K. The presence of a canting appears to be responsible for the negative values of the magnetic susceptibility found below the compensation temperature. This uncommon phenomenon is named reversal of magnetization. It is field-dependent, being suppressed at 500 Oe for the TmCrO4 compound. The highest value of the compensation temperature (24K) corresponds to the YbCrO4 oxide. A metamagnetic transition has been observed in all cases at critical fields ranging from 225Oe (GdCrO4) to 1600 Oe (YbCrO4).",

keywords = "Antiferromagnetism, Lanthanide chromates, Metamagnetism, Reversal of magnetization, Zircon-type structure",

author = "E. Jim{\'e}nez and J. Isasi and R. S{\'a}ez-Puche",

note = "Funding Information: We thank DGICYT for financial support, under the project MAT-2000-0753-C02-01.",

year = "2002",

doi = "10.1006/jssc.2001.9476",

language = "English",

volume = "164",

pages = "313--319",

journal = "Journal of Solid State Chemistry",

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T1 - Field-induced magnetic properties in RCrO4 oxides (R = Pr, Gd, Tb, Tm, and Yb)

AU - Jiménez, E.

AU - Isasi, J.

AU - Sáez-Puche, R.

N1 - Funding Information: We thank DGICYT for financial support, under the project MAT-2000-0753-C02-01.

PY - 2002

Y1 - 2002

N2 - RCrO4 oxides (R=Pr, Gd, Tb, Tm, and Yb) have been synthesized at 773K using the corresponding nitrates as precursors. X-ray diffraction data reveal that these samples are single phases and crystallize with the zircon-type structure, showing tetragonal symmetry, space group I41/amd. All the compounds are antiferromagnetic and the Néel temperature, which depends on the R3+ ion, takes values lower than 30 K. The presence of a canting appears to be responsible for the negative values of the magnetic susceptibility found below the compensation temperature. This uncommon phenomenon is named reversal of magnetization. It is field-dependent, being suppressed at 500 Oe for the TmCrO4 compound. The highest value of the compensation temperature (24K) corresponds to the YbCrO4 oxide. A metamagnetic transition has been observed in all cases at critical fields ranging from 225Oe (GdCrO4) to 1600 Oe (YbCrO4).

AB - RCrO4 oxides (R=Pr, Gd, Tb, Tm, and Yb) have been synthesized at 773K using the corresponding nitrates as precursors. X-ray diffraction data reveal that these samples are single phases and crystallize with the zircon-type structure, showing tetragonal symmetry, space group I41/amd. All the compounds are antiferromagnetic and the Néel temperature, which depends on the R3+ ion, takes values lower than 30 K. The presence of a canting appears to be responsible for the negative values of the magnetic susceptibility found below the compensation temperature. This uncommon phenomenon is named reversal of magnetization. It is field-dependent, being suppressed at 500 Oe for the TmCrO4 compound. The highest value of the compensation temperature (24K) corresponds to the YbCrO4 oxide. A metamagnetic transition has been observed in all cases at critical fields ranging from 225Oe (GdCrO4) to 1600 Oe (YbCrO4).

KW - Antiferromagnetism

KW - Lanthanide chromates

KW - Metamagnetism

KW - Reversal of magnetization

KW - Zircon-type structure

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