Abstract
The transport and magnetic properties of single-crystalline Fe-intercalation-compound Fe x TiSe2 have been compared with the transport properties of single-crystalline Ti-self-intercalation-compound Ti x TiSe2. At low concentration of intercalated guest atoms, Fe x TiSe2 exhibits carrier localization behavior without magnetic ordering, while Ti x TiSe2 shows an itinerant behavior. The superstructure and the carrier localization observed in Fe x TiSe2 single crystals simultaneously disappear at the critical concentration x c∼0.07, which agrees well with theoretical value based on a percolation theory. Fe intercalation compounds show paramagnetism and nonexistence of magnetism is attributed to the large distance between guest Fe atoms. We discuss the effect of guest intercalation on the stability of superstructure formed in the host.
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Sasaki, M., Ohnishi, A., Kikuchi, T. et al. Anomalous Transport Properties in Fe Intercalation Compound Fe x TiSe2 Single Crystals. J Low Temp Phys 161, 375–386 (2010). https://doi.org/10.1007/s10909-010-0196-1
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DOI: https://doi.org/10.1007/s10909-010-0196-1