Gaoshang Gong , Yaran Duan , Xiaoying Chen , Minghao Wang , Zheng Li , Yongqiang Wang , Jin Zhou , Yuling Su
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引用次数: 0
Abstract
The subtle magnetic structure of one-dimensional frustrated Ca3Co2O6 has become a puzzling issue for a long time. The mechanism of its fractional magnetization steps also remains in debate. In this study, our experimental results demonstrate that two kinds of finite spin units (isolated Co single-ion and dimer) form in the frustrated spin chains. The quantum tunneling of the isolated Co single-ion and dimer causes the magnetization jumps around 1.2 T and 2.4 T. For the third magnetization step around μ0HS3 = 3.6 T, it can be interpreted by the field induced transition from ferrimagnetic order to ferromagnetic order. At tunneling fields, the magnetic field dependent dielectric permittivity presents obvious anomalies, implying the resonant quantum magnetoelectric coupling effect. This resonant effect was first observed in Ca3Co2O6, it supplies additional evidence for the quantum tunneling. The present work not only extends the resonant quantum magnetoelectric coupling effect to spin frustrated Ca3Co2O6, but also plots the subtle magnetic structure of Ca3Co2O6.
期刊介绍:
Solid State Communications is an international medium for the publication of short communications and original research articles on significant developments in condensed matter science, giving scientists immediate access to important, recently completed work. The journal publishes original experimental and theoretical research on the physical and chemical properties of solids and other condensed systems and also on their preparation. The submission of manuscripts reporting research on the basic physics of materials science and devices, as well as of state-of-the-art microstructures and nanostructures, is encouraged.
A coherent quantitative treatment emphasizing new physics is expected rather than a simple accumulation of experimental data. Consistent with these aims, the short communications should be kept concise and short, usually not longer than six printed pages. The number of figures and tables should also be kept to a minimum. Solid State Communications now also welcomes original research articles without length restrictions.
The Fast-Track section of Solid State Communications is the venue for very rapid publication of short communications on significant developments in condensed matter science. The goal is to offer the broad condensed matter community quick and immediate access to publish recently completed papers in research areas that are rapidly evolving and in which there are developments with great potential impact.