Li nonstoichiometry and crystal growth of an untwinned one-dimensional quantum spin system LixCu2O2

H. C. Hsu; H. L. Liu; F. C. Chou

doi:10.1103/PhysRevB.78.212401

Li nonstoichiometry and crystal growth of an untwinned one-dimensional quantum spin system Li_xCu₂O₂

H. C. Hsu, H. L. Liu, F. C. Chou

Department of Physics

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

13 Citations (Scopus)

Abstract

Floating-zone growth of untwinned single crystal of Li_xCu ₂O₂ with high Li content of x∼0.99±0.03 is reported. Li content of Li_xCu₂O₂ has been determined accurately through combined iodometric titration and thermogravimetric (TGA) methods, which also ruled out the speculation of chemical disorder between Li and Cu ions. The morphology and physical properties of single crystals obtained from slowing-cooling and floating-zone methods are compared. The floating-zone growth under Ar/O₂=7:1 gas mixture at 0.64 MPa produces large area of untwinned crystal with highest Li content, which has the lowest helimagnetic ordering temperature ∼19 K in the Li _xCu₂O₂ system.

Original language	English
Article number	212401
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	78
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.78.212401
Publication status	Published - 2008 Dec 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "Floating-zone growth of untwinned single crystal of LixCu 2O2 with high Li content of x∼0.99±0.03 is reported. Li content of LixCu2O2 has been determined accurately through combined iodometric titration and thermogravimetric (TGA) methods, which also ruled out the speculation of chemical disorder between Li and Cu ions. The morphology and physical properties of single crystals obtained from slowing-cooling and floating-zone methods are compared. The floating-zone growth under Ar/O2=7:1 gas mixture at 0.64 MPa produces large area of untwinned crystal with highest Li content, which has the lowest helimagnetic ordering temperature ∼19 K in the Li xCu2O2 system.",

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AB - Floating-zone growth of untwinned single crystal of LixCu 2O2 with high Li content of x∼0.99±0.03 is reported. Li content of LixCu2O2 has been determined accurately through combined iodometric titration and thermogravimetric (TGA) methods, which also ruled out the speculation of chemical disorder between Li and Cu ions. The morphology and physical properties of single crystals obtained from slowing-cooling and floating-zone methods are compared. The floating-zone growth under Ar/O2=7:1 gas mixture at 0.64 MPa produces large area of untwinned crystal with highest Li content, which has the lowest helimagnetic ordering temperature ∼19 K in the Li xCu2O2 system.

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