TY - GEN
T1 - Electrical conductivity and thermoelectric power of La2-xSr xNiO4+δ
AU - Nakamura, Takashi
AU - Yashiro, Keiji
AU - Sato, Kazuhisa
AU - Mizusaki, Junichiro
PY - 2009
Y1 - 2009
N2 - Electrical conductivity, Seebeck coefficient, and nonstoichiometric oxygen content of La2-xSrxNiO4+δ (x = 0, 0.2, 0.4) were measured as a function of Sr content, temperature, and oxygen partial pressure. At above around 873 K, mobility of hole decreases as temperature increases. The temperature dependence of hole mobility indicates large polaron conduction. The relationship between Seebeck coefficient and electrical conductivity is explained by metal like band conduction model. The behavior of electrical conductivity and Seebeck coefficient strongly suggests that electron (hole) is delocalized in La2-xSrxNiO4+δ at high temperatures.
AB - Electrical conductivity, Seebeck coefficient, and nonstoichiometric oxygen content of La2-xSrxNiO4+δ (x = 0, 0.2, 0.4) were measured as a function of Sr content, temperature, and oxygen partial pressure. At above around 873 K, mobility of hole decreases as temperature increases. The temperature dependence of hole mobility indicates large polaron conduction. The relationship between Seebeck coefficient and electrical conductivity is explained by metal like band conduction model. The behavior of electrical conductivity and Seebeck coefficient strongly suggests that electron (hole) is delocalized in La2-xSrxNiO4+δ at high temperatures.
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U2 - 10.1149/1.3242246
DO - 10.1149/1.3242246
M3 - Conference contribution
AN - SCOPUS:77649229298
SN - 9781615676446
T3 - ECS Transactions
SP - 317
EP - 325
BT - ECS Transactions - Solid State Ionic Devices 6 - Nanoionics - 214th ECS Meeting
PB - Electrochemical Society Inc.
T2 - Solid State Ionic Devices 6 - Nanoionics - 214th ECS Meeting
Y2 - 12 October 2008 through 17 October 2008
ER -