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Title: Averievite: A copper oxide kagome antiferromagnet

Abstract

Averievite, Cu5V2O10(CsCl), is an oxide mineral composed of Cu2+ kagome layers sandwiched by Cu2+-V5+ honeycomb layers. We have synthesized this oxide and investigated its properties from ab initio calculations along with susceptibility and specific heat measurements. The data imply a Curie-Weiss temperature of 185K as well as long-range magnetic order at 24 K due to the significant interlayer coupling from the honeycomb copper ions. This order is suppressed by substituting copper by isoelectronic zinc, suggesting that Zn-substituted averievite is a promising spin liquid candidate. A further proposed substitution that replaces V5+ by Ti4+ not only dopes the material but is predicted to give rise to a two-dimensional electronic structure featuring Dirac crossings. Thus, averievite is an attractive platform for S =1/2 kagome physics with the potential for realizing novel electronic states.

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. Argonne National Lab. (ANL) Lemont, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL) Lemont, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1506419
Alternate Identifier(s):
OSTI ID: 1465621
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 98; Journal Issue: 5; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE

Citation Formats

Botana, Antia Sanchez, Zheng, H., Lapidus, S. H., Mitchell, J. F., and Norman, M. R. Averievite: A copper oxide kagome antiferromagnet. United States: N. p., 2018. Web. doi:10.1103/PhysRevB.98.054421.
Botana, Antia Sanchez, Zheng, H., Lapidus, S. H., Mitchell, J. F., & Norman, M. R. Averievite: A copper oxide kagome antiferromagnet. United States. doi:10.1103/PhysRevB.98.054421.
Botana, Antia Sanchez, Zheng, H., Lapidus, S. H., Mitchell, J. F., and Norman, M. R. Tue . "Averievite: A copper oxide kagome antiferromagnet". United States. doi:10.1103/PhysRevB.98.054421. https://www.osti.gov/servlets/purl/1506419.
@article{osti_1506419,
title = {Averievite: A copper oxide kagome antiferromagnet},
author = {Botana, Antia Sanchez and Zheng, H. and Lapidus, S. H. and Mitchell, J. F. and Norman, M. R.},
abstractNote = {Averievite, Cu5V2O10(CsCl), is an oxide mineral composed of Cu2+ kagome layers sandwiched by Cu2+-V5+ honeycomb layers. We have synthesized this oxide and investigated its properties from ab initio calculations along with susceptibility and specific heat measurements. The data imply a Curie-Weiss temperature of 185K as well as long-range magnetic order at 24 K due to the significant interlayer coupling from the honeycomb copper ions. This order is suppressed by substituting copper by isoelectronic zinc, suggesting that Zn-substituted averievite is a promising spin liquid candidate. A further proposed substitution that replaces V5+ by Ti4+ not only dopes the material but is predicted to give rise to a two-dimensional electronic structure featuring Dirac crossings. Thus, averievite is an attractive platform for S =1/2 kagome physics with the potential for realizing novel electronic states.},
doi = {10.1103/PhysRevB.98.054421},
journal = {Physical Review B},
number = 5,
volume = 98,
place = {United States},
year = {2018},
month = {8}
}

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