Title of article
Enhancement of the thermopower controlled by spin state in La0.9−xEuxCa0.1CoO3
Author/Authors
Zhang، نويسنده , , Dewei and Mi، نويسنده , , Xiaona and Wu، نويسنده , , Qisheng and Zhang، نويسنده , , Xia and Tang، نويسنده , , Guodong، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2015
Pages
5
From page
49
To page
53
Abstract
The effect of the spin state on the thermopower has been studied in La0.9−xEuxCa0.1CoO3 (x=0.0, 0.05, 0.1 and 0.15) through the thermopower, X-ray photoelectron spectroscopy (XPS), and magnetic measurements. The thermopower is obviously enhanced by Eu doping. Both XPS and magnetic properties reveal that the spin state of Co3+ ions is the driving force for the thermopower in La0.9−xEuxCa0.1CoO3. Moreover, we adopt the theoretical model proposed by Koshibae et al. to explain well the enhancement of the thermopower which is induced by spin-state transition. This investigation provides an effective path for the research and development of new thermoelectric oxides.
Keywords
A. Thermoelectirc materials , D. Thermopower , D. Spin state
Journal title
Solid State Communications
Serial Year
2015
Journal title
Solid State Communications
Record number
1752064
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