Synthesis and transport properties of HfFe4Sb12

First-principles investigations on phase stability and electronic structures of Yb1−xMxAl3 (M = Ho, Er and Tm) alloys

“…For more than 50 years, ZT of commercial materials limited to around unity in all temperature ranges, which is rather lower for practical applications. During the last decade, many new materials with ZT > 1 have been developed for high temperature applications [5,6], nevertheless, Bi 2 Te 3 and its alloys still dominate at room temperature with ZT w1.…”

A large family of filled skutterudites stabilized by electron count

“…A very small number of filled skutterudites based on Co, Ni and Pt have been reported (see Figure 1c) . Because they make very good thermoelectrics 14,[22][23][24][25][26] , host unusual metal-insulator transitions [27][28][29][30] , and can be rare earth magnets, heavy-fermion compounds [31][32][33][34] , non-Fermi liquids [35][36][37][38][39] , itinerant ferromagnets [40][41][42] , superconductors 31,[43][44][45][46][47][48][49][50] , and have been proposed as topological insulators 51 , filled skutterudites are a very important class of non-molecular solids.…”

“…Because they make very good thermoelectrics 21,22,47 , host unusual metalinsulator transitions [23][24][25] , can be rare-earth magnets, heavyfermion compounds [26][27][28][29][30] , non-Fermi liquids [31][32][33][34][35] , itinerant ferromagnets [36][37][38] and superconductors 27,[39][40][41][42][43][44][45][46] , and have been proposed as topological insulators 48 , filled skutterudites are a very important class of non-molecular solids. Because the electronic and magnetic properties of solids depend critically on the actual atoms making up the compounds in addition to the compound's electron count, expanding the filled skutterudites from primarily group 8 to group 9 metal-based compounds, as we have done in this study, affords the opportunity to observe many new physical properties.…”

Electronic Structures and Transport Properties of RFe4Sb12 (R = Na, Ca, Nd, Yb, Sn, In)

“…4 To answer this question, a series of chemical and physical properties of various RFe 4 Sb 12 materials (where R is the filling atom) have been studied and reported. For example, Nolas et al 5 reported that the HfFe 4 Sb 12 skutterudite possesses very low thermal conductivity. Ferromagnetic ordering in NaFe 4 Sb 12 and KFe 4 Sb 12 was researched by Jasper et al 6 Furthermore, the magnetic, optical, and thermoelectric properties of LaFe 4 Sb 12 , CeFe 4 Sb 12 , YbFe 4 Sb 12 , EuFe 4 P 12 , and BaFe 4 P 12 have also been reported.…”