2010
DOI: 10.1016/j.jssc.2010.07.047
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Crystal structure and physical properties of quaternary clathrates Ba8ZnxGe46−x−ySiy, Ba8(Zn,Cu)xGe46−x and Ba8(Zn,Pd)xGe46−x

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Cited by 14 publications
(11 citation statements)
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“…Твердые растворы системы Ba−Zn−Si−Ge кристал-лизуются в примитивную кубическую ячейку простран-ственной группы Pm3n [22]. На одну элементарную ячей-ку приходится два полиэдра Si(Ge) 20 Si(Ge) 24 .…”
Section: метод расчетаunclassified
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“…Твердые растворы системы Ba−Zn−Si−Ge кристал-лизуются в примитивную кубическую ячейку простран-ственной группы Pm3n [22]. На одну элементарную ячей-ку приходится два полиэдра Si(Ge) 20 Si(Ge) 24 .…”
Section: метод расчетаunclassified
“…В элементарной ячейке имеется две неэквивалентныe кристаллографическиe позиции атомов бария -2a и 6b и три неэквивалентных позиции атомов клатратной ре-шетки -6c, 16i и 24k (рис. 1) [22]. …”
Section: метод расчетаunclassified
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“…1). [18][19][20][21][22][23][24][25][26] 13 where the observed increases in mobility were mainly as a result of a decrease in the number of substituting atoms. Johnsen et al characterized several Ba 8 Ni 6Àx Ge 40þx (0 x 0.6) samples.…”
Section: Introductionmentioning
confidence: 99%
“…On the other hand, Nasir et al prepared vacancy-free quaternary clathrates Ba 8 (Zn,Cu) 6 Ge 40 and Ba 8 (Zn,Pd) 6 Ge 40 , whose 6c sites were occupied almost solely by Zn and Cu or Pd atoms; unfortunately, these clathrates are not reported to have high ZT values. 25 Since the Zn and Cu or Pd atoms were present randomly at the 6c sites in the frameworks, 25 this randomness might suppress increases in carrier mobility.…”
Section: Introductionmentioning
confidence: 99%