| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
|
|
|
|
Elastocaloric Effect in PbTiO$_{3}$ Thin Films with 180$^{\circ}$ Domain Structure: A Phase Field Study |
| Fang Wang1,3, Bo Li2**, Yun Ou1,3, Long-Fei Liu1,3**, Wei Wang4 |
1Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan 411201
2School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105
3School of Materials and Engineering, Hunan University of Science and Technology, Xiangtan 411201
4China Three Gorges Corporation, Chengdu 610041
|
|
| Cite this article: |
|
Fang Wang, Bo Li, Yun Ou et al 2018 Chin. Phys. Lett. 35 037701 |
|
|
|
|
Abstract The elastocaloric effect of PbTiO$_{3}$ thin films with 180$^{\circ}$ domain structure is studied using the phase field method. The influence of external stress $\sigma_{33}$, misfit strain $u_{\rm m}$ and domain wall energy on the adiabatic temperature change ($\Delta T_{\sigma})$ at room temperature are carried out. The calculation results indicate that $|{\Delta T_\sigma}|$ increases as $|{\sigma_{33}}|$ or $|{u_{\rm m}}|$ increases. The largest $\Delta T_{\sigma}$ value of $-$7.8 K is obtained at $\sigma_{33}=2$ GPa and $u_{\rm m}=-0.02$. Furthermore, the domain switching behaviors under different gradient coefficients are different, and finally affect the elastocaloric effect in PTO thin films. These results could provide a guide to choose the substrate and the preparation process in experiments.
|
|
|
Received: 22 September 2017
Published: 25 February 2018
|
|
| PACS: |
77.70.+a
|
(Pyroelectric and electrocaloric effects)
|
| |
77.80.Dj
|
(Domain structure; hysteresis)
|
| |
77.84.Cg
|
(PZT ceramics and other titanates)
|
|
|
| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 11502078 and 11402222, the General Project of Hunan Provincial Department of Education under Grant No 15C0535, and the Start-up Foundation of High-talent Research Project of Hunan University of Science and Technology under Grant No E51517. |
|
|
|
| [1] | Mischenko A S et al 2006 Science 311 1270 | | [2] | Mischenko A S et al 2006 Appl. Phys. Lett. 89 242912 | | [3] | Qiu J H et al 2013 Chin. Phys. B 22 17701 | | [4] | Liu Y et al 2014 Adv. Mater. 26 6132 | | [5] | Wang X Y et al 2015 Acta Phys. Sin. 64 117701 (in Chinese) | | [6] | Lisenkov S et al 2013 Phys. Rev. B 87 224101 | | [7] | Liu Y et al 2014 Phys. Rev. B 90 104107 | | [8] | Lee J Y et al 2015 J. Mater. Sci. 50 1382 | | [9] | Karthik J and Martin L W 2011 Appl. Phys. Lett. 99 32904 | | [10] | Li B et al 2013 J. Appl. Phys. 114 44301 | | [11] | Li B, Wang J B, Zhong X L et al 2013 Europhys. Lett. 102 47004 | | [12] | Wang F, Li B, Ou Y et al 2016 RSC Adv. 6 70557 | | [13] | Pertsev N A, Tagantsev A K and Setter N 2000 Phys. Rev. B 61 R825 | | [14] | Zhang H B, Wu H P, Zhou T et al 2013 Acta Phys. Sin. 62 247701 (in Chinese) | | [15] | Akcay G, Alpay S P, Rossetti Jr G A et al 2008 J. Appl. Phys. 103 24104 | | [16] | Li B, Zhang X, Wang J B et al 2014 Mech. Res. Commun. 55 40 | | [17] | Liu Y, Wei J, Lou X et al 2015 Appl. Phys. Lett. 106 32901 | | [18] | Jin Y M, Wang Y U, Khachaturyan A G et al 2003 Phys. Rev. Lett. 91 197601 | | [19] | Hu H and Chen L 1997 Mater. Sci. Eng. A 238 182 | | [20] | Hong L, Soh A K, Song Y C et al 2008 Acta Mater. 56 2966 | | [21] | Wang J, Shi S, Chen L et al 2004 Acta Mater. 52 749 | | [22] | Li Y L, Hu S Y, Liu Z K et al 2002 Acta Mater. 50 395 | | [23] | Barr J A, Beckman S P and Nishimatsu T 2015 J. Phys. Soc. Jpn. 84 24716 | | [24] | Scott J F and Dawber M 2000 Appl. Phys. Lett. 76 3801 | | [25] | Hong L, Soh A K, Liu S Y et al 2009 J. Appl. Phys. 106 024111 |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
