Spin-glasslike behavior of K+ -containing α -MnO2 nanotubes

J. Luo; H. T. Zhu; F. Zhang; J. K. Liang; G. H. Rao; J. B. Li; Z. M. Du

doi:10.1063/1.3117495

Spin-glasslike behavior of K+ -containing α -MnO2 nanotubes

J. Luo^*, H. T. Zhu, F. Zhang, J. K. Liang, G. H. Rao, J. B. Li, Z. M. Du

^*Corresponding author for this work

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

37 Citations (Scopus)

Abstract

Magnetic properties of K+ -containing α -MnO2 nanotubes have been systematically investigated by dc magnetic measurements. Zero-field-cooled and field-cooled susceptibilities display divergences at low temperature, and a spin-glass temperature of 33.1 K is determined from the de Almedia-Thouless line by extrapolating the applied field to zero. The dc magnetic measurements, such as the field dependent magnetic susceptibility, hysteresis effect, thermoremanent magnetization, and memory effect, further confirm the spin-glass feature of the tetragonal α -MnO2 sample, which can be attributed to the geometrical frustration on the triangular lattices and the mixed valence of Mn3+ and Mn4+.

Original language	English
Article number	093925
Journal	Journal of Applied Physics
Volume	105
Issue number	9
DOIs	https://doi.org/10.1063/1.3117495
Publication status	Published - 2009
Externally published	Yes

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title = "Spin-glasslike behavior of K+ -containing α -MnO2 nanotubes",

abstract = "Magnetic properties of K+ -containing α -MnO2 nanotubes have been systematically investigated by dc magnetic measurements. Zero-field-cooled and field-cooled susceptibilities display divergences at low temperature, and a spin-glass temperature of 33.1 K is determined from the de Almedia-Thouless line by extrapolating the applied field to zero. The dc magnetic measurements, such as the field dependent magnetic susceptibility, hysteresis effect, thermoremanent magnetization, and memory effect, further confirm the spin-glass feature of the tetragonal α -MnO2 sample, which can be attributed to the geometrical frustration on the triangular lattices and the mixed valence of Mn3+ and Mn4+.",

author = "J. Luo and Zhu, \{H. T.\} and F. Zhang and Liang, \{J. K.\} and Rao, \{G. H.\} and Li, \{J. B.\} and Du, \{Z. M.\}",

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doi = "10.1063/1.3117495",

language = "English",

volume = "105",

journal = "Journal of Applied Physics",

issn = "0021-8979",

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TY - JOUR

T1 - Spin-glasslike behavior of K+ -containing α -MnO2 nanotubes

AU - Luo, J.

AU - Zhu, H. T.

AU - Zhang, F.

AU - Liang, J. K.

AU - Rao, G. H.

AU - Li, J. B.

AU - Du, Z. M.

PY - 2009

Y1 - 2009

N2 - Magnetic properties of K+ -containing α -MnO2 nanotubes have been systematically investigated by dc magnetic measurements. Zero-field-cooled and field-cooled susceptibilities display divergences at low temperature, and a spin-glass temperature of 33.1 K is determined from the de Almedia-Thouless line by extrapolating the applied field to zero. The dc magnetic measurements, such as the field dependent magnetic susceptibility, hysteresis effect, thermoremanent magnetization, and memory effect, further confirm the spin-glass feature of the tetragonal α -MnO2 sample, which can be attributed to the geometrical frustration on the triangular lattices and the mixed valence of Mn3+ and Mn4+.

AB - Magnetic properties of K+ -containing α -MnO2 nanotubes have been systematically investigated by dc magnetic measurements. Zero-field-cooled and field-cooled susceptibilities display divergences at low temperature, and a spin-glass temperature of 33.1 K is determined from the de Almedia-Thouless line by extrapolating the applied field to zero. The dc magnetic measurements, such as the field dependent magnetic susceptibility, hysteresis effect, thermoremanent magnetization, and memory effect, further confirm the spin-glass feature of the tetragonal α -MnO2 sample, which can be attributed to the geometrical frustration on the triangular lattices and the mixed valence of Mn3+ and Mn4+.

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U2 - 10.1063/1.3117495

DO - 10.1063/1.3117495

M3 - Article

AN - SCOPUS:67249091725

SN - 0021-8979

VL - 105

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 9

M1 - 093925

ER -

Spin-glasslike behavior of K+ -containing α -MnO2 nanotubes

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