1/3 and other magnetization plateaus in the quasi-one-dimensional Ising magnet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>TbTi</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>Bi</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math> with zigzag spin chain
Kaizhen Guo, Zeyu Ma, Hongxiong Liu, Ziyang Wu, Junfeng Wang, Youguo Shi, Yuan Li, Shuang Jia
Abstract
We report the magnetic properties of newly synthesized, single crystals of ${\mathrm{TbTi}}_{3}{\mathrm{Bi}}_{4}$ whose crystal structure is highlighted by the stacking of terbium-based zigzag chains and titanium-based kagome lattices. This compound demonstrates extreme easy-axis magnetic anisotropy due to the crystalline-electric-field effect which aligns the ${\mathrm{Tb}}^{3+}$ moments along the zigzag chain direction. As the result of the strong single-ion anisotropy and multiple magnetic interactions, ${\mathrm{TbTi}}_{3}{\mathrm{Bi}}_{4}$ behaves as a quasi-one-dimensional Ising magnet with a remarkable antiferromagnetic ordering at ${T}_{\mathrm{N}}=20.4\phantom{\rule{0.16em}{0ex}}\mathrm{K}$. When a magnetic field is applied along the direction of the zigzag chain, multiple metamagnetic transitions occur between 1/3 and other magnetization plateaus. We have created a field-temperature phase diagram and mapped out the complex magnetic structures resulting from frustration.