Synthesis, structure, magnetism, and high temperature thermoelectric properties of Ge doped Yb14MnSb11

Rauscher, Japheth F.; Cox, Catherine A.; Yi, Tanghong; Beavers, Christine M.; Klavins, P.; Toberer, Eric S.; Snyder, G. Jeffrey; Kauzlarich, Susan M.

doi:10.1039/b920250a

Cited by 37 publications

(33 citation statements)

References 40 publications

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“…[81][82][83] The only reported solid solution study of the Pn site is that of Yb14MnSb11-xBix. 84 Dopants on the Pn site include Ge, 85 Te, 86 and Sn. 87…”

Section: A14mpn11 Structure Typementioning

confidence: 99%

The remarkable crystal chemistry of the Ca14AlSb11 structure type, magnetic and thermoelectric properties

Cerretti

Wille

et al. 2019

Journal of Solid State Chemistry

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Yb14MnSb11 is a member of a remarkable structural family of compounds that are classified according to the concept of Zintl. This structure type, of which the prototype is Ca14AlSb11, provides a flexible framework for tuning structure-property relationships and hence the physical and chemical properties of compounds. Compounds within this family show exceptional high temperature thermoelectric performance at temperatures above 300 K and unique magnetic and transport behavior at temperatures below 300 K. This review provides an overview of the structure variants, the magnetic properties, and the thermoelectric properties. Suggestions for directions of future research are provided. One active research area is to systematically explore more complex compositions such as Ca11Sb10, K4Pb9, Na8Si46, Ca14AlSb11 and KBa2InAs3. 3-7 The other direction is to replace the alkaline earth metals with divalent rare earth elements (Sm, Eu and Yb) along with the introduction of transition metals into structures, typically replacing the less electronegative metalloid in the anionic framework. 8-10 Combinations of these two directions led to compounds such as Yb14MnSb11, Pr4MnSb9, Eu10Mn6Sb13, Yb9Zn4+xBi9 and Cs13Nb2In6As10. 11-16 The complexity of compositions can be combined with a small flexibility in electron counting. For example, Yb14MnSb11 and Yb9Zn4+xBi9 do not strictly follow the Zintl-Klemm concept. Yb14MnSb11 has Mn 2+ instead of a group 13 element such as in Ca14AlSb11 and therefore is electron deficient, 17 and Yb9Zn4+xSb9 has interstitial Zn atoms which can be compositionally varied to achieve specific properties. 18 At the same time, the total number of valence electrons within an identical Zintl phase structure type with different elements may also vary slightly but the variance can be quite small and limited for many structure types that can be described by the Zintl concept. Therefore, with the introduction of transition elements, new electronic properties are possible, but complete transfer of electrons and clear counting of valence electrons remains a criterion for describing transition and rare earth metal containing Zintl phase compounds. Binary Zintl phase compounds which have compositions of simple ratios of elements usually adopt the structures of known oxides or halides, in which anions and cations are isolated in the structure with no covalent bonding. 2, 19 Both isolated anions, polyanions or clusters in Zintl phase compounds can provide complex compositions such as those represented by Ca11Sb10 and K4Pb9. 3, 4 Polyanions or clusters are formed to compensate for lack of enough electrons from the electropositive element to satisfy valence to form a simple one atom anion. Sb forms Sb-Sb single bonds in the Ca11Sb10 structure type resulting in Sb2 4and Sb4 2polyanions in the structure. 3 The Zintl electron counting provides the following charge balanced scenario: 11Ca 2+ + 4Sb 3-+ 2Sb2 4-+ Sb4 2-. Two types of clusters exist in K4Pb9 with the same formal oxidation state: a monocapped square antiprism and a tr...

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“…[81][82][83] The only reported solid solution study of the Pn site is that of Yb14MnSb11-xBix. 84 Dopants on the Pn site include Ge, 85 Te, 86 and Sn. 87…”

Section: A14mpn11 Structure Typementioning

confidence: 99%

The remarkable crystal chemistry of the Ca14AlSb11 structure type, magnetic and thermoelectric properties

Cerretti

Wille

et al. 2019

Journal of Solid State Chemistry

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“…In fact, the past few years have witnessed the emergence of new families of compounds, some of which are now regarded as promising thermoelectric materials. It is the case of certain Zintl phases such as Yb 14 MnSb 11 and its derivative for high temperature spatial applications [2][3][4][5][6], or some members of the CaAl 2 Si 2 structure type [7][8][9][10][11][12]. Other such new families are the molybdenum selenides based on Mo 9 Se 11 clusters [13], and layered sulfides [14,15], oxyselenides [16] or selenides [17].…”

Section: Introductionmentioning

confidence: 97%

CdI2 structure type as potential thermoelectric materials: Synthesis and high temperature thermoelectric properties of the solid solution TiSxSe2−x

Gascoin¹,

Nunna²,

Guilmeau³

et al. 2012

Journal of Alloys and Compounds

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“…Solid solutions of Yb 14 MnSb 11 have been recently prepared in order to increase the thermoelectric figure of merit of this p-type high temperature material [7]. Solid solutions of La [9,10], Ce [11], Tm [12,13], and Lu [14] substitution for Yb, Al [15] and Zn [16] for Mn, and Ge [17] and Te [18] for Sb have been reported with an emphasis on controlling carrier concentration for thermoelectrics, but these new solid solutions are also of interest as new magnetic materials [11]. However, in many cases, the magnetization has not been reported since the emphasis of the research has been on thermoelectric properties.…”

Section: Introductionmentioning

confidence: 99%

Magnetic remanence in Yb14−RE MnSb11 (RE=Tb, Dy, Ho) single crystals

Grebenkemper

Abdusalyamova

et al. 2016

Journal of Solid State Chemistry

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Single crystals of Yb 14-x RE x MnSb 11 (x ~ 0.1, 0.4; RE = Tb, Dy, Ho) have been prepared as a solid solution by Sn flux reactions of the elements. They crystallize in the Ca 14 AlSb 11 structure type in the I4 1 /acd space group. The RE 3+ preferentially substitutes on the Yb(1) site which is the smallest volume Yb containing polyhedron. In the case of Ho 3+ , a small amount of Ho 3+ also substitutes on the Yb(4) site. The ferromagnetic ordering temperature of Yb 14 MnSb 11 is reduced from 53 K to 41 K as x increases and dependent on the identity of the RE. This is attributed to the reduction in carriers and reduced screening of the Mn 2+ local moment. The effective moments, μ eff, agree well with the calculated moments assuming the RE substitutes as a 3+ cation. The largest coercive field is observed for RE = Dy (1000 Oe). For the maximum x of Yb 14-x RE x MnSb 11 there are enough carriers for the Ruderman-Kittel-Kasuya-Yosida (RKKY) mechanism of magnetic coupling via conduction electrons to still be valid in describing the ferromagnetic ordering. Graphical abstract

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Synthesis, structure, magnetism, and high temperature thermoelectric properties of Ge doped Yb14MnSb11

Cited by 37 publications

References 40 publications

The remarkable crystal chemistry of the Ca14AlSb11 structure type, magnetic and thermoelectric properties

The remarkable crystal chemistry of the Ca14AlSb11 structure type, magnetic and thermoelectric properties

CdI2 structure type as potential thermoelectric materials: Synthesis and high temperature thermoelectric properties of the solid solution TiSxSe2−x

Magnetic remanence in Yb14−RE MnSb11 (RE=Tb, Dy, Ho) single crystals

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