ABSTRACT
Since the skutterudite mineral (Co, Ni, Fe)As3 was rst discovered in 1845, this structure has proven to be one of the most diverse chemical families with a broad range of electronic, magnetic, and thermal phenomena. The potential of skutterudite materials for thermoelectric applications has been extensively studied and has led to some of the best thermoelectric performance to date [1-3]. On a more fundamental level, the skutterudite family has been fascinating. Electronic transport in these materials spans uncorrelated to highly correlated behavior and phonon transport is unconventional due to the incorporation of guest atoms in large interstitial sites. In this chapter, we focus on recent progress (since 2010) in skutterudites to update prior reviews, including in this book series [4-7]. In this short time period, more than 600 papers have been published; as such, we approach this literature in terms of case examples to highlight particularly intriguing developments rather than an extensive review. In an effort to focus this review, the cobalt antimonide (CoSb3) skutterudite serves as the primary emphasis of this chapter.
