论文标题

在低温,高磁场和高压的极端环境中,空间分辨的光谱法

Spatially resolved optical spectroscopy in extreme environment of low temperature, high magnetic fields and high pressure

论文作者

Breslavetz, I., Delhomme, A., Pelini, T., Pawbake, A., Vaclavkova, D., Orlita, M., Potemski, M., Measson, M. -A., Faugeras, C.

论文摘要

我们提出了一种实验设置,以在低温,高磁场和高压的极端环境中进行微米空间分辨率进行光谱实验(拉曼散射和光致发光测量)。据我们所知,这种独特的实验设置使我们能够通过独立调整这三个热力学参数来深入探索冷凝物质系统的相位图,同时监测低能量激发(电子,语音或磁性激发),以空间绘制Raman散射响应或研究低维度的对象的空间映射。我们将此技术应用于散装FEPS3,这是一种呈neel温度t = 120 k的分层抗铁磁铁。

We present an experimental set-up developed to perform optical spectroscopy experiments (Raman scattering and photoluminescence measurements) with a micrometer spatial resolution, in an extreme environment of low temperature, high magnetic field and high pressure. This unique experimental setup, to the best of our knowledge, allows us to explore deeply the phase diagram of condensed matter systems by tuning independently these three thermodynamic parameters, while monitoring the low-energy excitations (electronic, phononic or magnetic excitations), to spatially map the Raman scattering response or to investigate objects with low dimensions. We apply this technique to bulk FePS3, a layered antiferromagnet with a Neel temperature of T = 120 K.

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