Effects of Cobalt Substitution on Crystal Structure and Thermoelectric Properties of Melt-Grown Higher Manganese Silicides

2019 ◽  
Vol 48 (4) ◽  
pp. 1902-1908 ◽  
Author(s):  
H. Nagai ◽  
H. Hamada ◽  
K. Hayashi ◽  
Y. Miyazaki
Keyword(s):  
Crystal Structure ◽  
Thermoelectric Properties ◽  
Higher Manganese Silicides ◽  
Cobalt Substitution

scholarly journals Crystal Structure and Thermoelectric Properties of Lightly Substituted Higher Manganese Silicides

Materials ◽  
2018 ◽  
Vol 11 (6) ◽  
pp. 926 ◽  
Author(s):  
Yuzuru Miyazaki ◽  
Haruki Hamada ◽  
Hiroki Nagai ◽  
Kei Hayashi
Keyword(s):  
Crystal Structure ◽  
Thermoelectric Properties ◽  
Higher Manganese Silicides

Effect of Cobalt-Substitution on the Structure and Thermoelectric Properties of Chimney-Ladder Solid Solution (Mn1-xCox)Siγ (γ~ 1.7)

2010 ◽  
Vol 74 ◽  
pp. 22-25 ◽  
Author(s):  
Yuzuru Miyazaki ◽  
Yoshitsugu Saito ◽  
Kei Hayashi ◽  
Kunio Yubuta ◽  
Tsuyoshi Kajitani
Keyword(s):  
Crystal Structure ◽  
Solid Solution ◽  
Thermoelectric Properties ◽  
Valence Electron ◽  
Annealing Process ◽  
Axis Ratio ◽  
Cobalt Substitution ◽  
Valence Electrons ◽  
Unknown Factor ◽  
P Type

A partially cobalt-substituted solid solution of Nowotny chimney-ladder phase, (Mn1-xCox)Si􀀂, has been prepared using a tetra-arc-type furnace and a subsequent annealing process. The compounds consist of two tetragonal subsystems of [Mn1-xCox] and [Si], with an irrational c-axis ratio 􀀂 = cMn/cSi ~ 1.7. The crystal structure and thermoelectric properties of (Mn1-xCox)Si􀀂 solid solution were compared with those of the Fe-substituted solid solution, (Mn1-xFex)Si􀀂. In the case of Co-series, extra valence electrons are introduced relative to Fe-series, since the valence electron count is 3d74s2 for Co but 3d64s2 for Fe, respectively. It was naturally expected that the Feand Co-substituted MnSi􀀁 becomes n-type conductor from the p-type one at x > 0.23(5) and x > 0.06(1), respectively. Experimentally, the Fe-substituted samples become n-type at x > 0.28 but it is not the case for the Co-substituted ones. It is thus evident that there is an unknown factor which controls the thermoelectric properties of Co-substituted samples.

Enhanced thermoelectric properties of Ge 2 Sb 2 Te 5 thin films through the control of crystal structure

2017 ◽  
Vol 17 (5) ◽  
pp. 744-750 ◽  
Author(s):  
So-Hyun Kang ◽  
Venkatraju Jella ◽  
S.V.N. Pammi ◽  
Ji-Ho Eom ◽  
Jin-Seok Choi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Thin Films ◽  
Thermoelectric Properties

Synthesis, crystal structure and thermoelectric properties of a new metal telluride Ba3Ag3InTe6

2017 ◽  
Vol 4 (9) ◽  
pp. 1458-1464 ◽  
Author(s):  
M.-Y. Lee ◽  
D. I. Bilc ◽  
E. Symeou ◽  
Y.-C. Lin ◽  
I.-C. Liang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Transport Properties ◽  
Valence Band ◽  
Thermoelectric Properties ◽  
Type Semiconductor ◽  
P Type

A new p-type semiconductor Ba3Ag3InTe6 with transport properties dominated by the layer [Ag3Te4]5− distributed in the valence band.

scholarly journals Crystal structure and thermoelectric properties of chimney–ladder compounds in the Ru2Si3–Mn4Si7 pseudobinary system

2009 ◽  
Vol 57 (17) ◽  
pp. 5036-5045 ◽  
Author(s):  
Norihiko L. Okamoto ◽  
Tatsuya Koyama ◽  
Kyosuke Kishida ◽  
Katsushi Tanaka ◽  
Haruyuki Inui
Keyword(s):  
Crystal Structure ◽  
Thermoelectric Properties ◽  
Pseudobinary System
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