Intrinsically modified thermoelectric performance of alkaline-earth isovalently substituted [Bi2AE2O4][CoO2]y single crystals

2013 ◽  
Vol 114 (4) ◽  
pp. 043705 ◽  
Author(s):  
N. Sun ◽  
S. T. Dong ◽  
B. B. Zhang ◽  
Y. B. Chen ◽  
J. Zhou ◽  
...  
Keyword(s):  
Single Crystals ◽  
Alkaline Earth ◽  
Thermoelectric Performance

Über das Erdalkalimetall-Lanthanoid-Kupfer-Oxomolybdat (Cu0,22Mg0 ,78)BaNd2Mo4O16/The Alkaline Earth Rare Earth Copper-Oxomolybdate (Cu0.22Mg0.78)BaNd2Mo4O16

1995 ◽  
Vol 50 (4) ◽  
pp. 577-580 ◽  
Author(s):  
H. Szillat ◽  
Hk. Müller-Buschbaum
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Single Crystals ◽  
Alkaline Earth ◽  
Three Dimensional ◽  
Space Group ◽  
X Ray ◽  
Ray Methods

Single crystals of (Cu0.22Mg0.78)BaNd2Mo4O16 have been prepared by crystallization from melts and investigated by X-ray methods. The compound crystallizes monoclinically, space group C62h - C12/c1, Z = 4, a = 5.351(1), b = 12.891(2), c = 19.391(4) Å,β = 90.899(14)° and is isotypic to CuKHo2Mo4O16. The crystal structure is dominated by BaO10 and NdO8 polyhedra forming a three-dimensional polyhedra network, which is filled by axially distorted (Cu,Mg)O6 octahedra and MoO4 tetrahedra.

scholarly journals Synthese und Kristallstruktur eines Alkali-Erdalkali-Kupfer-Halogeno-Oxovanadats: KBaCuV2O7Cl / Synthesis and Crystal Structure of an Alkaline Alkaline-Earth Halide Oxide of Copper and Vanadium: KBaCuV2O7Cl

1994 ◽  
Vol 49 (3) ◽  
pp. 355-359 ◽  
Author(s):  
F.-D. Martin ◽  
H. Müller-Buschbaum
Keyword(s):  
Crystal Structure ◽  
Single Crystals ◽  
Alkaline Earth ◽  
Copper Ion ◽  
Tetragonal Symmetry ◽  
Synthesis And Crystal Structure ◽  
Space Group ◽  
X Ray ◽  
Symmetry Space ◽  
Symmetry Space Group

Abstract Single crystals of KBaCuV2O7Cl have been prepared by a flux technique and investigated by X-ray analysis. The compound crystallizes with tetragonal symmetry, space group C24v-P4 bm, a = 8.8581, c = 5.4711 Å, Z = 2. The crystal structure shows Cu2+ within a one sided strongly distorted CuO4Cl2 octahedron. The copper ion is shifted towards the nearer Cl- neighbour to form a CuO4Cl square pyramid. Two VO4 tetrahedra are connected to give stretched V2O7 double tetrahedra, and linked in planes via the oxygen corners of the CuO4Cl pyramids. The crystal structure and the structure of the complex BaO8Cl2 polyhedron are discussed.

scholarly journals High thermoelectric performance of Cu substituted type-VIII clathrate Ba8Ga16–xCuxSn30 single crystals

2011 ◽  
Vol 109 (10) ◽  
pp. 103704 ◽  
Author(s):  
Shukang Deng ◽  
Yuta Saiga ◽  
Kousuke Kajisa ◽  
Toshiro Takabatake
Keyword(s):  
Single Crystals ◽  
Thermoelectric Performance ◽  
Type Viii

scholarly journals Metallic n‐Type Mg 3 Sb 2 Single Crystals Demonstrate the Absence of Ionized Impurity Scattering and Enhanced Thermoelectric Performance

2020 ◽  
Vol 32 (16) ◽  
pp. 1908218 ◽  
Author(s):  
Kazuki Imasato ◽  
Chenguang Fu ◽  
Yu Pan ◽  
Max Wood ◽  
Jimmy Jiahong Kuo ◽  
...  
Keyword(s):  
Single Crystals ◽  
Impurity Scattering ◽  
Thermoelectric Performance ◽  
Ionized Impurity Scattering

Doping of Alkaline Earth Halide Single Crystals

1964 ◽  
Vol 111 (8) ◽  
pp. 1009 ◽  
Author(s):  
P. F. Weller ◽  
J. E. Scardefield
Keyword(s):  
Single Crystals ◽  
Alkaline Earth

Die Kristallstrukturen der isotypen Erdalkalimetall-Nitridowolfra- mat(VI)-Nitrid-Oxide Ca51[WN4]12N8O3 und Sr51[WN4]12N8O3 / The Crystal Structures of the Isotypic Alkaline Earth-Nitridotungstate(VI)- Nitride-OxidesCa51[WN4]12N8O3 and Sr51[WN4]12N8O3

1997 ◽  
Vol 52 (11) ◽  
pp. 1349-1358 ◽  
Author(s):  
Peter Höhn ◽  
Matthias Ludwig ◽  
Rüdiger Kniep
Keyword(s):  
Single Crystals ◽  
Crystal Structures ◽  
Alkaline Earth ◽  
Molar Ratio ◽  
Oxide Ions

Yellow single crystals of the isotypic phases Ca51[WN4]12N8O3 and Sr51[WN4] 12N8O3 (triclinic, P1̄ (#2 ); a= 1056.4(3) / 1113.1(5) pm, b = 1239.7(3) / 1304.4(5) pm, c= 1598.2(3) / 1679.4(9) pm, α = 102.78(1)/102.47(2)°, β= 95.15( 1)/95.43(3)°, γ = 109.89(1)/109.77(2)°; Z = 1) were grown in a Tl-flux (Ca:Tl, molar ratio 5:1, W-crucible; Tmax = 1273K; reaction with N2, 1 atm, 36 h) or from pellets (Sr2N + W, molar ratio 6:1; Tmax = 1023K; reaction with N2, 1 atm, 36 h). The crystal structures contain tetrahedral anions [WN4]6- in addition to isolated nitride and isolated oxide ions, which are octahedrally coordinated by Ca and Sr, respectively.

scholarly journals Über das gemischte Alkali-Erdalkalimetall-Oxoruthenat NaSr3RuO6 / The Mixed Alkaline Alkaline Earth Oxoruthenate NaSr3RuO6

1995 ◽  
Vol 50 (4) ◽  
pp. 581-584 ◽  
Author(s):  
S. Frenzen ◽  
Hk. Müller-Buschbaum
Keyword(s):  
Crystal Structure ◽  
Single Crystals ◽  
Alkaline Earth ◽  
Partial Replacement ◽  
X Ray ◽  
Group D ◽  
Symmetry Space ◽  
Related Compounds ◽  
Symmetry Space Group ◽  
Rhombohedral Symmetry

Single crystals of NaSr3RuO6 have been prepared in closed silver tubes and investigated by X-ray techniques. This compound crystallizes with trigonal (rhombohedral) symmetry, space group D63d - R3̅c , a = 9.6069(8), c = 11.513(2) Å, Z = 6, and is isotypic to compounds of the Sr4PtO6 type. The crystal structure is discussed with respect to related compounds with partial replacement of alkaline earth elem ents by sodium and copper.

The unique evolution of transport bands and thermoelectric performance enhancement by extending low-symmetry phase to high temperature in tin selenide

2020 ◽  
Vol 8 (27) ◽  
pp. 9345-9351
Author(s):  
Kunling Peng ◽  
Bo Zhang ◽  
Hong Wu ◽  
Hailiang Che ◽  
Xuefeng Sun ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystals ◽  
Performance Enhancement ◽  
Thermoelectric Performance ◽  
Tin Selenide ◽  
Symmetry Phase ◽  
Low Symmetry

The unique evolution of transport bands with the occurrence of two bands above 600 K and the extending low-symmetry phase regime synergistically enhance thermoelectric performance in SnSe based single crystals.

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