Chemical Disorder-Driven Cluster Spin Glass in Pseudobinary Co<sub>2</sub>Zn<sub>10.2</sub>Mn<sub>0.8</sub>: An Experimental and Theoretical Study

The investigation focuses on Mn substitution in Co<sub>2</sub>Zn<sub>11</sub>, prepared by pursuing a solid-state sealed tube method under high vacuum. We report the crystal structure and magnetic properties of Co<sub>2</sub>Zn<sub>10.2</sub>Mn<sub>0.8</sub> in detail. Co<sub>2</sub>Zn<sub>10.2</sub>Mn<sub>0.8</sub> adopts the noncentrosymmetric space group <i>I</i>4̅3<i>m</i> (No. 217), and the distribution of Co, Mn, and Zn atoms is confirmed using X-ray and neutron powder diffraction (NPD) techniques. The magnetic studies reveal cluster glass (CG) formation below the spin-freezing temperature of 23.1 K in Co<sub>2</sub>Zn<sub>10.2</sub>Mn<sub>0.8</sub>, also indicated by the large value of the characteristic relaxation time (τ<sub>0</sub>) of ∼10<sup>-8</sup> s. This large value of τ<sub>0</sub> supports the formation of magnetic clusters. The magnetic moment primarily originates due to the spins of Mn atoms, which is realized from significant differences between majority- and minority-spin channels of Mn 3d states in the projected density of states curves.

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Publication Details

Journal
Inorganic Chemistry
Published
2025-03-22
DOI
https://doi.org/10.1021/acs.inorgchem.4c05506
Citations
2
Primary Topic
Theoretical and Computational Physics
Type
article
Field-Weighted Citation Impact
2.52

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article

Chemical Disorder-Driven Cluster Spin Glass in Pseudobinary Co2Zn10.2Mn0.8: An Experimental and Theoretical Study

Amit Mondal, Sandip K. Kuila, Rahul Pan, Lars Schumacher et al.
2 citations
Inorganic Chemistry
Theoretical and Computational Physics
2.52
article

Chemical Disorder-Driven Cluster Spin Glass in Pseudobinary Co2Zn10.2Mn0.8: An Experimental and Theoretical Study

Amit Mondal, Sandip K. Kuila, Rahul Pan, Lars Schumacher, Riju Dey, Partha P. Jana, A. K. Bera, Shubham Patel, Rainer Pöttgen
article en
2 citations

Abstract

The investigation focuses on Mn substitution in Co<sub>2</sub>Zn<sub>11</sub>, prepared by pursuing a solid-state sealed tube method under high vacuum. We report the crystal structure and magnetic properties of Co<sub>2</sub>Zn<sub>10.2</sub>Mn<sub>0.8</sub> in detail. Co<sub>2</sub>Zn<sub>10.2</sub>Mn<sub>0.8</sub> adopts the noncentrosymmetric space group <i>I</i>4̅3<i>m</i> (No. 217), and the distribution of Co, Mn, and Zn atoms is confirmed using X-ray and neutron powder diffraction (NPD) techniques. The magnetic studies reveal cluster glass (CG) formation below the spin-freezing temperature of 23.1 K in Co<sub>2</sub>Zn<sub>10.2</sub>Mn<sub>0.8</sub>, also indicated by the large value of the characteristic relaxation time (τ<sub>0</sub>) of ∼10<sup>-8</sup> s. This large value of τ<sub>0</sub> supports the formation of magnetic clusters. The magnetic moment primarily originates due to the spins of Mn atoms, which is realized from significant differences between majority- and minority-spin channels of Mn 3d states in the projected density of states curves.

Inorganic ChemistryVol. 64(13)
Bhabha Atomic Research Centre (IN), Solid State Physics Laboratory (IN), Homi Bhabha National Institute (IN), University of Münster (DE)
Indian Institute of Technology Kharagpur, Science and Engineering Research Board
Openalex Percentile: Top 13%
Theoretical and Computational Physics
2.52
DOISourceOpenAlex
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