Crystal growth, crystal structure and anisotropic magnetic properties of KBaR(BO 3 ) 2 (R = Y, Gd, Tb, Dy, Ho, Tm, Yb and Lu) triangular lattice materials

Shu Guo, Tai Kong, F. Alex Cevallos, Karoline Stolze, Robert Joseph Cava

Research output: Contribution to journalArticle

Abstract

Crystals of the KBaR(BO 3 ) 2 (R = Y, Gd, Tb, Dy, Ho, Tm, Yb and Lu) rare earth borates were grown by spontaneous nucleation from a KF-B 2 O 3 flux. The crystals obtained were typically well-developed hexagonal plates about 1 mm in large dimension. The crystals were used to study the anisotropic temperature and field dependent magnetization of the materials, which are based on ideal triangular planes of magnetic rare earths. All structures were refined in space group R3-m by single-crystal X-ray diffraction, and in addition to the equilateral triangular rare earth plane lattice, displayed K/Ba site occupancy disorder. All magnetic compounds reveal dominantly antiferromagnetic spin interactions with no magnetic ordering above 1.8 K. With the exception of KBaGd(BO 3 ) 2 , magnetic anisotropy was observed for other five magnetic members of the family. The results suggest that KBaR(BO 3 ) 2 crystals may be of further interest for investigating the magnetic properties of rare earth ions on a triangular lattice.

Original languageEnglish (US)
Pages (from-to)104-110
Number of pages7
JournalJournal of Magnetism and Magnetic Materials
Volume472
DOIs
StatePublished - Feb 15 2019

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Crystallization
Crystal growth
Crystal lattices
Rare earths
crystal growth
Magnetic properties
rare earth elements
Crystal structure
magnetic properties
Crystals
crystal structure
crystals
Magnetization
Borates
Magnetic anisotropy
borates
Nucleation
Single crystals
nucleation
disorders

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

@article{e08d70c30719427387a8b80e106cceff,
title = "Crystal growth, crystal structure and anisotropic magnetic properties of KBaR(BO 3 ) 2 (R = Y, Gd, Tb, Dy, Ho, Tm, Yb and Lu) triangular lattice materials",
abstract = "Crystals of the KBaR(BO 3 ) 2 (R = Y, Gd, Tb, Dy, Ho, Tm, Yb and Lu) rare earth borates were grown by spontaneous nucleation from a KF-B 2 O 3 flux. The crystals obtained were typically well-developed hexagonal plates about 1 mm in large dimension. The crystals were used to study the anisotropic temperature and field dependent magnetization of the materials, which are based on ideal triangular planes of magnetic rare earths. All structures were refined in space group R3-m by single-crystal X-ray diffraction, and in addition to the equilateral triangular rare earth plane lattice, displayed K/Ba site occupancy disorder. All magnetic compounds reveal dominantly antiferromagnetic spin interactions with no magnetic ordering above 1.8 K. With the exception of KBaGd(BO 3 ) 2 , magnetic anisotropy was observed for other five magnetic members of the family. The results suggest that KBaR(BO 3 ) 2 crystals may be of further interest for investigating the magnetic properties of rare earth ions on a triangular lattice.",
author = "Shu Guo and Tai Kong and Cevallos, {F. Alex} and Karoline Stolze and Cava, {Robert Joseph}",
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Crystal growth, crystal structure and anisotropic magnetic properties of KBaR(BO 3 ) 2 (R = Y, Gd, Tb, Dy, Ho, Tm, Yb and Lu) triangular lattice materials. / Guo, Shu; Kong, Tai; Cevallos, F. Alex; Stolze, Karoline; Cava, Robert Joseph.

In: Journal of Magnetism and Magnetic Materials, Vol. 472, 15.02.2019, p. 104-110.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Crystal growth, crystal structure and anisotropic magnetic properties of KBaR(BO 3 ) 2 (R = Y, Gd, Tb, Dy, Ho, Tm, Yb and Lu) triangular lattice materials

AU - Guo, Shu

AU - Kong, Tai

AU - Cevallos, F. Alex

AU - Stolze, Karoline

AU - Cava, Robert Joseph

PY - 2019/2/15

Y1 - 2019/2/15

N2 - Crystals of the KBaR(BO 3 ) 2 (R = Y, Gd, Tb, Dy, Ho, Tm, Yb and Lu) rare earth borates were grown by spontaneous nucleation from a KF-B 2 O 3 flux. The crystals obtained were typically well-developed hexagonal plates about 1 mm in large dimension. The crystals were used to study the anisotropic temperature and field dependent magnetization of the materials, which are based on ideal triangular planes of magnetic rare earths. All structures were refined in space group R3-m by single-crystal X-ray diffraction, and in addition to the equilateral triangular rare earth plane lattice, displayed K/Ba site occupancy disorder. All magnetic compounds reveal dominantly antiferromagnetic spin interactions with no magnetic ordering above 1.8 K. With the exception of KBaGd(BO 3 ) 2 , magnetic anisotropy was observed for other five magnetic members of the family. The results suggest that KBaR(BO 3 ) 2 crystals may be of further interest for investigating the magnetic properties of rare earth ions on a triangular lattice.

AB - Crystals of the KBaR(BO 3 ) 2 (R = Y, Gd, Tb, Dy, Ho, Tm, Yb and Lu) rare earth borates were grown by spontaneous nucleation from a KF-B 2 O 3 flux. The crystals obtained were typically well-developed hexagonal plates about 1 mm in large dimension. The crystals were used to study the anisotropic temperature and field dependent magnetization of the materials, which are based on ideal triangular planes of magnetic rare earths. All structures were refined in space group R3-m by single-crystal X-ray diffraction, and in addition to the equilateral triangular rare earth plane lattice, displayed K/Ba site occupancy disorder. All magnetic compounds reveal dominantly antiferromagnetic spin interactions with no magnetic ordering above 1.8 K. With the exception of KBaGd(BO 3 ) 2 , magnetic anisotropy was observed for other five magnetic members of the family. The results suggest that KBaR(BO 3 ) 2 crystals may be of further interest for investigating the magnetic properties of rare earth ions on a triangular lattice.

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