Cluster glass behavior of the frustrated birnessites A(x)MnO(2)center dot yH(2)O (A = Na, K)

L. D. Kulish; R. Scholtens; G. R. Blake

doi:10.1103/PhysRevB.100.214435

Cluster glass behavior of the frustrated birnessites A(x)MnO(2)center dot yH(2)O (A = Na, K)

L. D. Kulish^*, R. Scholtens, G. R. Blake

^*Corresponding author for this work

Solid State Materials for Electronics

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

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Abstract

We report the synthesis and magnetic properties of frustrated Na0.22MnO2 center dot 0.39H(2)O and K0.6MnO2 center dot 0.48H(2)O with the birnessite structure. The structure, static, and dynamic magnetic properties of the compounds are investigated in detail. A combination of DC and AC magnetic susceptibility measurements and magnetization decay measurements reveal cluster glass behavior below the freezing temperature of 4 K for Na-birnessite and 6 K for K-birnessite. The frequency dependence of the freezing temperature is analyzed on the basis of dynamic scaling laws including the critical slowing-down formula and the Vogel-Fulcher law, which further confirm cluster glass formation in both compounds.

Original language	English
Article number	214435
Number of pages	11
Journal	Physical Review B
Volume	100
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.100.214435
Publication status	Published - 26-Dec-2019

Keywords

AVERAGE OXIDATION-STATE
SPIN-GLASS
PARAMAGNETIC RELAXATION
MAGNETIC-PROPERTIES
MANGANESE
DYNAMICS
SUSCEPTIBILITY
cluster-glass
FRUSTRATION
FULCHER

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10.1103/PhysRevB.100.214435

Cluster glass behavior of the frustrated birnessites AxMnO2 · yH2O (A = Na, K)Final publisher's version, 2.37 MBLicence: Taverne

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title = "Cluster glass behavior of the frustrated birnessites A(x)MnO(2)center dot yH(2)O (A = Na, K)",

abstract = "We report the synthesis and magnetic properties of frustrated Na0.22MnO2 center dot 0.39H(2)O and K0.6MnO2 center dot 0.48H(2)O with the birnessite structure. The structure, static, and dynamic magnetic properties of the compounds are investigated in detail. A combination of DC and AC magnetic susceptibility measurements and magnetization decay measurements reveal cluster glass behavior below the freezing temperature of 4 K for Na-birnessite and 6 K for K-birnessite. The frequency dependence of the freezing temperature is analyzed on the basis of dynamic scaling laws including the critical slowing-down formula and the Vogel-Fulcher law, which further confirm cluster glass formation in both compounds.",

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author = "Kulish, {L. D.} and R. Scholtens and Blake, {G. R.}",

year = "2019",

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AU - Kulish, L. D.

AU - Scholtens, R.

AU - Blake, G. R.

PY - 2019/12/26

Y1 - 2019/12/26

N2 - We report the synthesis and magnetic properties of frustrated Na0.22MnO2 center dot 0.39H(2)O and K0.6MnO2 center dot 0.48H(2)O with the birnessite structure. The structure, static, and dynamic magnetic properties of the compounds are investigated in detail. A combination of DC and AC magnetic susceptibility measurements and magnetization decay measurements reveal cluster glass behavior below the freezing temperature of 4 K for Na-birnessite and 6 K for K-birnessite. The frequency dependence of the freezing temperature is analyzed on the basis of dynamic scaling laws including the critical slowing-down formula and the Vogel-Fulcher law, which further confirm cluster glass formation in both compounds.

AB - We report the synthesis and magnetic properties of frustrated Na0.22MnO2 center dot 0.39H(2)O and K0.6MnO2 center dot 0.48H(2)O with the birnessite structure. The structure, static, and dynamic magnetic properties of the compounds are investigated in detail. A combination of DC and AC magnetic susceptibility measurements and magnetization decay measurements reveal cluster glass behavior below the freezing temperature of 4 K for Na-birnessite and 6 K for K-birnessite. The frequency dependence of the freezing temperature is analyzed on the basis of dynamic scaling laws including the critical slowing-down formula and the Vogel-Fulcher law, which further confirm cluster glass formation in both compounds.

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KW - PARAMAGNETIC RELAXATION

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KW - DYNAMICS

KW - SUSCEPTIBILITY

KW - cluster-glass

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