<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi mathvariant="normal">K</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Co</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>TeO</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math>: A layered magnet with a <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>S</mml:mi><mml:mo>=</mml:mo><mml:mstyle scriptlevel="0" displaystyle="false"><mml:mfrac><mml:mn>1</mml:mn><mml:mn>2</mml:mn></mml:mfrac></mml:mstyle><mml:mspace width="0.16em"/><mml:msup><mml:mrow><mml:mi>Co</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> honeycomb lattice
Xianghan Xu, Lijun Wu, Yimei Zhu, R. J. Cava
Abstract
As a Kramers ion, Co${}^{2+}$ can function as an effective spin-half ion, exhibiting large quantum fluctuations that give rise to rich and intriguing magnetic behaviors. Here, the authors present the synthesis of sizable single crystals of K${}_{2}$Co${}_{2}$TeO${}_{6}$. The structural characterization reveals a layered structure with an undistorted Co${}^{2+}$ honeycomb lattice stacking together. Magnetization and thermodynamics data unveil intricate magnetic phases and competing interactions. These results establish a promising platform for exploring Kitaev interactions and discovering exotic quantum phases.
Topics & Concepts
StackingIonMagnetizationLattice (music)PhysicsCondensed matter physicsAlgorithmCrystallographyMaterials scienceChemistryComputer scienceNuclear magnetic resonanceQuantum mechanicsMagnetic fieldAcousticsAdvanced Condensed Matter PhysicsMagnetic and transport properties of perovskites and related materialsMultiferroics and related materials