Structure and magnetic properties of Ca14MnP11

Kim, Hyungrak; Kauzlarich, Susan M.

doi:10.1016/j.jssc.2005.03.041

Cited by 19 publications

(26 citation statements)

References 21 publications

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“…This appears to be the case for all of the Mn containing analogs, with the exception of the Ca14MnP11 analog where the Mn moment is closer to that expected for Mn 2+ . 38 A view of the molecular units, the MnBi4 cluster, and the Bi3 unit is shown in Figure 12. These MnBi4 clusters are composed of two independent interpenetrating networks of MnBi4 clusters with ferromagnetic interactions within the same network and weaker couplings between the networks whose sign and magnitude are sensitive to materials parameters.…”

Section: Magnetic and Electrical Propertiesmentioning

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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Section: Magnetic and Electrical Propertiesmentioning

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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“…Combinations of different elements lead to variations in structure and properties due to changes in electronegativity, valence and ionic radii. For instance, from Ca to Ba or from P to Bi, a significant increase in unit-cell parameters can be observed. ,,− The bond angle and bond length of the MPn 4 tetrahedral unit also change gradually, according to the identity of the cation or anion, as well as the central atom, M. The differences are even larger with respect to electrical and magnetic properties. These compounds behave like either a small gap semiconductor or a metal, depending on the constituting elements.…”

Section: Introductionmentioning

confidence: 99%

Yb₁₄MgSb₁₁ and Ca₁₄MgSb₁₁—New Mg-Containing Zintl Compounds and Their Structures, Bonding, and Thermoelectric Properties

et al. 2014

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Magnesium-containing Zintl phase compounds Yb 14 MgSb 11 and Ca 14 MgSb 11 have been prepared by annealing the mixture of the elements at 1075−1275 K. These compounds are isostructural with the Zintl compound Ca 14 AlSb 11 and crystallize in the tetragonal space group I4 1 /acd (Z = 8). Singlecrystal X-ray data (90 K) were refined for Yb 14 MgSb 11 [a = 16.625(9) Å, c = 22.24(2) Å, V = 6145(8) Å 3 , and R1/wR2 (0.0194/0.0398)] and Ca 14 MgSb 11 [a = 16.693(2) Å, c = 22.577(5) Å, V = 6291(2) Å 3 , R1/wR2 (0.0394/0.0907)].This structure type has been shown to be highly versatile with a large number of phases with the general formula A 14 MPn 11 (A = Ca, Sr, Ba, Yb, Eu; M = Mn, Zn, Nb, Cd, Group 13 elements; Pn = Group 15 elements). The two compounds reported in this paper are the first Mg-containing analogs. Replacing M with Mg, which is divalent with no d-orbitals, probes electronic structure and properties of this structure type. Mg 2+ is well-known to prefer tetrahedral geometry and allows for integration of the properties of a main group analog isoelectronic to the transition metal (Mn 2+

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“…More interestingly, this family can be extended to contain various nontrivalent metals, such as Mn, Zn, Cd, Nb, and Mg. ,,− For such compounds, the structures may change in order to meet the electronic requirements. For example, interstitial Sb atoms were found in Ca 14 ZnSb 11.20 and Ca 14 CdSb 11.43 , which are important in understanding the resultant semiconducting properties of these systems .…”

Section: Introductionmentioning

confidence: 99%

Structure, Magnetism, and Thermoelectric Properties of Magnesium-Containing Antimonide Zintl Phases Sr₁₄MgSb₁₁ and Eu₁₄MgSb₁₁

et al. 2017

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New Mg-containing antimonide Zintl phases, SrMgSb and EuMgSb, were synthesized from high-temperature solid-state reactions in Ta tubes at 1323 K. Their structures can be viewed as derived from the CaAlSb structure type, which adopt the tetragonal space group I4/acd (No. 142, Z = 8) with the cell parameters of a = 17.5691(14)/17.3442(11) Å and c = 23.399(4)/22.981(3) Å for the Sr- and Eu-containing compounds, respectively. The corresponding thermoelectric properties were probed, which demonstrated high potential of these compounds as new thermoelectrics for their very low thermal conductivity and moderate Seebeck coefficient. Magnetism studies and theoretical calculations were conducted as well to better understand the structure-and-property correlation of these materials.

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Structure and magnetic properties of Ca14MnP11

Cited by 19 publications

References 21 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

Yb₁₄MgSb₁₁ and Ca₁₄MgSb₁₁—New Mg-Containing Zintl Compounds and Their Structures, Bonding, and Thermoelectric Properties

Structure, Magnetism, and Thermoelectric Properties of Magnesium-Containing Antimonide Zintl Phases Sr₁₄MgSb₁₁ and Eu₁₄MgSb₁₁

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Structure and magnetic properties of Ca14MnP11

Cited by 19 publications

References 21 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

Yb14MgSb11 and Ca14MgSb11—New Mg-Containing Zintl Compounds and Their Structures, Bonding, and Thermoelectric Properties

Structure, Magnetism, and Thermoelectric Properties of Magnesium-Containing Antimonide Zintl Phases Sr14MgSb11 and Eu14MgSb11

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Yb₁₄MgSb₁₁ and Ca₁₄MgSb₁₁—New Mg-Containing Zintl Compounds and Their Structures, Bonding, and Thermoelectric Properties

Structure, Magnetism, and Thermoelectric Properties of Magnesium-Containing Antimonide Zintl Phases Sr₁₄MgSb₁₁ and Eu₁₄MgSb₁₁