Korean Journal of Materials Research, Vol.23, No.6, 329-333, June, 2013
단결정 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 의 상전이에 미치는 전장의 영향
Effect of Electrical Field on the Phase Transformation of 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 Single Crystals
E-mail:
The structural phase transformations of 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 (PMN-0.3PT) were studied using high resolution x-ray diffraction (HRXRD) as a function of temperature and electric field. A phase transformational sequence of cubic (C)→tetragonal (T)→rhombohedral (R) phase was observed in zero-field-cooled conditions; and a C→T→monoclinic (MC)→ monoclinic (MA) phase was observed in the field-cooled conditions. The transformation of T to MA phase was realized through an intermediate MC phase. The results also represent conclusive and direct evidence of a MC to MA phase transformation in field-cooled conditions. Beginning from the zero-field-cooled condition, a R→MA→MC→T phase transformational sequence was found with an increasing electric field at a fixed temperature. Upon removal of the field, the MA phase was stable at room temperature. With increasing the field, the transformation temperature from T to MC and from MC to MA phase decreased, and the phase stability ranges of both T and MC phases increased. Upon removal of the field, the phase transformation from R to MA phase was irreversible, but from MA to MC was reversible, which means that MA is the dominant
phase under the electric field. In the M phase region, the results confirmed that lattice parameters and tilt angles were weakly temperature dependent over the range of investigated temperatures.
- Park SE, Shrout T, J. Appl. Phys., 82, 1804 (1997)
- Guo R, Cross LE, Park SE, Noheda B, Cox DE, Shirane G, Phys. Rev. Lett., 84, 5423 (2000)
- Cox DE, Noheda B, Shirane G, Uesu Y, Fujishiro K, Yamada Y, Appl. Phys. Lett., 79, 400 (2001)
- Noheda B, Cox DE, Shirane G, Park SE, Cross LE, Zhong Z, Phy. Rev. Lett., 86, 3891 (2001)
- Park S, Shrout TR, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Contr., 44, 1140 (1997)
- Ohwada K, Hirota K, Rehrig P, Fujii Y, Shirane G, Phys. Rev. B, 67, 094111 (2003)
- Noheda B, Cox DE, Shirane, Gao J, Ye Z, Phys. Rev. B, 66, 054104 (2002)
- Ye Z, Noheda B, Dong M, Cox D, Shirane G, Phys. Rev. B, 64, 184114 (2001)
- Orauttapong DL, Noheda B, Ye ZG, Gehring PM, Toulouse J, Cox DE, Shirane G, Phys. Rev. B, 65, 144101 (2002)
- Feng Z, Zhao XY, Luo HS, Mater. Res. Bull., 41(6), 1133 (2006)
- Sulc M, Tryzna J, Pokorny M, J. Electroceram., 19, 443 (2007)
- Chen Y, Lam KH, Zhou D, Gao XS, Dai JY, Luo HS, Chan HLW, J. Appl. Phys., 109, 014111 (2011)
- Singh AK, Pandey D, Ferroelectrics, 326, 91 (2005)
- Lee EG, Lee J, Korean J. Mater. Res., 22(7), 342 (2012)
- Xu Z, Tan X, Han P, Shang J, Appl. Phys. Lett., 76, 3732 (2000)
- Singh AK, Pandey D, Phys. Rev. B, 67, 064102 (2003)
- Cao H, Bai F, Wang N, Li J, D. Viehland, Xu G, Shirane G, Phys. Rev. B, 72, 064104 (2005)
- Yao J, Cao H, Ge W, Li J, Viehland D, Appl. Phys. Lett., 95, 052905 (2009)