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首页> 外文期刊>Applied Magnetic Resonance >Hidden Antiferromagnetic Order in EuB6 Revealed by X-Band ESR
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Hidden Antiferromagnetic Order in EuB6 Revealed by X-Band ESR

机译:X波段ESR显示EuB6中隐藏的反铁磁顺序

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摘要

The temperature dependences of the resonance field and the linewidth were measured on the single crystals EuB6 - x C (x) with x = 0 and 0.07 by X-band electron spin resonance (ESR). It was observed the magnetic phase separation in spin system of Eu2+ ions. We assume the reason of the separation is due to the self-localization of free charge carriers (electrons and holes), i.e., the formation of magnetic polarons (ferrons) of two types. The self-localization of free charge carriers is associated with local crystal symmetry breaking. Antiferromagnetic interaction between ferrons of different types leads to attenuation of ferromagnetic interactions. It is manifested in the temperature behavior of the resonance field and the linewidth of ESR.
机译:通过X-带电子自旋共振(ESR),在x = 0和0.07的单晶EuB6-xC(x)上测量了共振场和线宽的温度依赖性。观察到Eu2 +离子自旋系统中的磁相分离。我们假设分离的原因是由于自由电荷载流子(电子和空穴)的自定位,即两种类型的磁极化子(铁)的形成。游离载流子的自定位与局部晶体对称性破坏有关。不同类型的铁之间的反铁磁相互作用导致铁磁相互作用的衰减。它表现为共振场的温度行为和ESR的线宽。

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