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arXiv · 2410.23872

Pressure-dependent magnetotransport measurement in Kagome metal Yb$_{0.5}$Co_3Ge$_3$

Zhiyuan Cheng·Yaojia Wang·Heng Wu·Mazhar N. Ali·Julia Y. Chan·Semonti Bhattacharyya
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Abstract

Kagome materials are known to be an ideal platform that hosts a plethora of interesting phases such as topological states, electronic correlation, and magnetism, owing to their unique band structure and geometry. We report magnetotransport measurement in Kagome metal Yb$_{0.5}$Co_3Ge$_3$ as a function of pressure. Below $\sim25^\circ$ K the temperature dependence of resistance shows an upturn that is accompanied by a strong negative magnetoresistance, which could be attributed to Kondo effect. Upon pressurization above 1 GPa the resistance shows a reduction as a function of temperature below $4^\circ$ K, along with a further enhanced negative magnetoresistance. This might indicate an onset of a pressure-induced Kondo coherence effect.

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Zhiyuan Cheng, Yaojia Wang, Heng Wu, Mazhar N. Ali, Julia Y. Chan, Semonti Bhattacharyya. 2024-10-31. Pressure-dependent magnetotransport measurement in Kagome metal Yb$_{0.5}$Co_3Ge$_3$. https://arxiv.org/abs/2410.23872

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