The 12-layer trimer-based hexagonal perovskite Cs4Ca0.7Mn3.3Cl12

Teresa Lee; Xianghan Xu; Weiwei Xie; Robert J. Cava

doi:10.1016/j.jssc.2023.124095

The 12-layer trimer-based hexagonal perovskite Cs₄Ca_0.7Mn_3.3Cl₁₂

Teresa Lee, Xianghan Xu, Weiwei Xie, Robert J. Cava

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

Abstract

We describe the crystal structure and basic magnetic properties of Cs₄Ca_0.7Mn_3.3Cl₁₂, a previously unreported twelve layer (12L-) hexagonal (R-3m) chloride perovskite. Its crystal structure features face sharing MnCl₆ octahedra that form Mn₃Cl₁₂ trimers. The trimers, which form a triangular array, are separated by corner sharing to layers of disordered single Ca(Mn)Cl₆ octahedra. The decreased intratrimer Mn–Mn distance yields stronger magnetic coupling within trimers than between trimers. The dominant magnetic interactions are antiferromagnetic (θ_CW = −105 K), the effective magnetic moment per Mn²⁺ is 6.5 μ_B, and potential signatures of magnetic frustration are observed. Behavior consistent with short- and long-range magnetic order is exhibited at approximately 37 and 0.7 K, respectively.

Original language	English (US)
Article number	124095
Journal	Journal of Solid State Chemistry
Volume	324
DOIs	https://doi.org/10.1016/j.jssc.2023.124095
State	Published - Aug 2023

All Science Journal Classification (ASJC) codes

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

Keywords

12L-hexagonal perovskite
Halide perovskite
Magnetic trimers
Magnetism

Access to Document

10.1016/j.jssc.2023.124095

Cite this

@article{3f2375a952b6483aac3f81b695c74ca8,

title = "The 12-layer trimer-based hexagonal perovskite Cs4Ca0.7Mn3.3Cl12",

abstract = "We describe the crystal structure and basic magnetic properties of Cs4Ca0.7Mn3.3Cl12, a previously unreported twelve layer (12L-) hexagonal (R-3m) chloride perovskite. Its crystal structure features face sharing MnCl6 octahedra that form Mn3Cl12 trimers. The trimers, which form a triangular array, are separated by corner sharing to layers of disordered single Ca(Mn)Cl6 octahedra. The decreased intratrimer Mn–Mn distance yields stronger magnetic coupling within trimers than between trimers. The dominant magnetic interactions are antiferromagnetic (θCW = −105 K), the effective magnetic moment per Mn2+ is 6.5 μB, and potential signatures of magnetic frustration are observed. Behavior consistent with short- and long-range magnetic order is exhibited at approximately 37 and 0.7 K, respectively.",

keywords = "12L-hexagonal perovskite, Halide perovskite, Magnetic trimers, Magnetism",

author = "Teresa Lee and Xianghan Xu and Weiwei Xie and Cava, {Robert J.}",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Inc.",

year = "2023",

month = aug,

doi = "10.1016/j.jssc.2023.124095",

language = "English (US)",

volume = "324",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - The 12-layer trimer-based hexagonal perovskite Cs4Ca0.7Mn3.3Cl12

AU - Lee, Teresa

AU - Xu, Xianghan

AU - Xie, Weiwei

AU - Cava, Robert J.

PY - 2023/8

Y1 - 2023/8

N2 - We describe the crystal structure and basic magnetic properties of Cs4Ca0.7Mn3.3Cl12, a previously unreported twelve layer (12L-) hexagonal (R-3m) chloride perovskite. Its crystal structure features face sharing MnCl6 octahedra that form Mn3Cl12 trimers. The trimers, which form a triangular array, are separated by corner sharing to layers of disordered single Ca(Mn)Cl6 octahedra. The decreased intratrimer Mn–Mn distance yields stronger magnetic coupling within trimers than between trimers. The dominant magnetic interactions are antiferromagnetic (θCW = −105 K), the effective magnetic moment per Mn2+ is 6.5 μB, and potential signatures of magnetic frustration are observed. Behavior consistent with short- and long-range magnetic order is exhibited at approximately 37 and 0.7 K, respectively.

AB - We describe the crystal structure and basic magnetic properties of Cs4Ca0.7Mn3.3Cl12, a previously unreported twelve layer (12L-) hexagonal (R-3m) chloride perovskite. Its crystal structure features face sharing MnCl6 octahedra that form Mn3Cl12 trimers. The trimers, which form a triangular array, are separated by corner sharing to layers of disordered single Ca(Mn)Cl6 octahedra. The decreased intratrimer Mn–Mn distance yields stronger magnetic coupling within trimers than between trimers. The dominant magnetic interactions are antiferromagnetic (θCW = −105 K), the effective magnetic moment per Mn2+ is 6.5 μB, and potential signatures of magnetic frustration are observed. Behavior consistent with short- and long-range magnetic order is exhibited at approximately 37 and 0.7 K, respectively.

KW - 12L-hexagonal perovskite

KW - Halide perovskite

KW - Magnetic trimers

KW - Magnetism

UR - http://www.scopus.com/inward/record.url?scp=85159857962&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85159857962&partnerID=8YFLogxK

U2 - 10.1016/j.jssc.2023.124095

DO - 10.1016/j.jssc.2023.124095

M3 - Article

AN - SCOPUS:85159857962

SN - 0022-4596

VL - 324

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

M1 - 124095

ER -