Spin entropy enhancement tuned by spin state transition in La0.7-xYxCa0.3CoO3
Spin entropy enhancement tuned by spin state transition in La0.7-xYxCa0.3CoO3
复制标题
La0.7-xYxCa0.3CoO3 中自旋态转变调节的自旋熵增强
DOI:
10.1016/j.ceramint.2013.10.117
复制
发表时间:
2014-05
影响因子:
5.2
通讯作者:
Du, Youwei
中科院分区:
文献类型:
--
作者:
Tang, Guodong;Wu, Qisheng;Qiu, Li;Du, Youwei
The effect of spin states on the spin entropy has been studied in La0.7−xYxCa0.3CoO3(x=0.0, 0.05, 0.1 and 0.15). Magnetothermopower results reveal that Y-doping improves the spin entropy of La0.7Ca0.3CoO3. The magnetic results indicate that the Co3+ions undergo a transition from an intermediate spin state (t52ge1g;S=1) to a low spin state (t62ge0g;S=0), which results in the enhancement of the spin entropy. A suitable theoretical model is suggested to explain well the enhancement of the spin entropy induced by spin state transition. This investigation gives strong evidence that the enhanced spin entropy contribution to the thermopower is tuned by the spin state transition.
登录
查看更多内容
影响因子:
3.7
作者:
C. Liu;C. Sheu;T.-W. Wu;L.-C. Huang;F. Hsu;H. D.Yang;G. Williams;C. C. Liu-C.
通讯作者:
C. Liu;C. Sheu;T.-W. Wu;L.-C. Huang;F. Hsu;H. D.Yang;G. Williams;C. C. Liu-C.
影响因子:
8.6
作者:
Klie, R. F.;Qiao, Q.;Gupta, A.
通讯作者:
Gupta, A.
影响因子:
3.7
作者:
Terasaki, I;Sasago, Y;Uchinokura, K
通讯作者:
Uchinokura, K
影响因子:
3.7
作者:
I. Fita;R. Szymczak;R. Puźniak;I. Troyanchuk;J. Fink-Finowicki;Y. Mukovskiǐ;V. Varyukhin;H. Szymczak
通讯作者:
I. Fita;R. Szymczak;R. Puźniak;I. Troyanchuk;J. Fink-Finowicki;Y. Mukovskiǐ;V. Varyukhin;H. Szymczak
影响因子:
2.1
作者:
G. Tang;Chipui Tang;X. B. Xu;Yun He;L. Qiu;L. Lv;Zhihe Wang;Youwei Du
通讯作者:
G. Tang;Chipui Tang;X. B. Xu;Yun He;L. Qiu;L. Lv;Zhihe Wang;Youwei Du