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Paik, Dong Soo; Park, S.-E.; Shrout, Thomas R.; Hackenberger, Wesley S.

doi:10.1023/a:1004578225228

Cited by 65 publications

(13 citation statements)

References 8 publications

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“…1(a and b). The increase of about 100% between 20-80°C is similar to that in the low temperature range [16,17]. The especially high increase in the range 90-101°C can be explained by polar vector rotation from pseudo-rhombohedral M A, to pseudo-orthorhombic M C, to the tetragonal T phase [18].…”

Section: Resultssupporting

confidence: 66%

Piezoelectric coefficients of PMN-0.29PT single crystals in the temperature range of phase transitions

2007

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The temperature dependencies of piezoelectric coefficients d 33 and d 31 for Pb(Mg 1/3 Nb 2/3 )O 3 -0.29PbTiO 3 multi-domain single crystals, poled in [001]-direction, were investigated. The two samples had x-and y-axes identical with crystallographic [100] and [010] directions respectively, and the second two samples with [−110] and [110]directions. The laser interferometry method was used for the piezoelectrically induced displacement measurement. Piezoelectric coefficients were similar for all samples at room temperature and were roughly d 31 =−550 pC/N and d 33 =1,100 pC/N. Very high increase of coefficients to values about d 31 =−2,100 pC/N and d 33 =3,900 pC/N was observed below temperature of the first phase transition 101°C. The coefficients exhibited only negligible frequency dependence at room temperature. But coefficient increases of about 10-30% as were observed at temperatures about 98°C for 1 Hz applied field frequency in comparison to values received at 1 kHz. The second phase transition to cubic phase was observed at the temperature 124°C. The temperature dependencies of dielectric and piezoelectric coefficients were compared too.

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Section: Resultssupporting

confidence: 66%

Piezoelectric coefficients of PMN-0.29PT single crystals in the temperature range of phase transitions

2007

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“…Actually, an "easy" polarization rotation is directly related to the high piezoelectric anisotropy. 7 Investigations of polycrystalline ceramics and single crystals at cryogenic temperatures [8][9][10][11][12][13] revealed a high reduction in piezoelectric response, being attributed to the clamping of domain wall motion and/or mobility, 8,9 reflecting a high level of extrinsic contribution in ceramics/crystals. However, based on a recent investigation, 14 the extrinsic contribution was found to be less than 10% of the total piezoelectric response across the compositional range of 0.25Ͻ x Ͻ 0.35 in ͑1-x͒PMN-xPT crystals, owing to the stable domain engineered structure.…”

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confidence: 99%

Piezoelectric activity of relaxor-PbTiO3 based single crystals and polycrystalline ceramics at cryogenic temperatures: Intrinsic and extrinsic contributions

Zhang

Wang

et al. 2010

Applied Physics Letters

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The piezoelectric activity in ͓001͔ poled Pb͑In 1/2 Nb 1/2 ͒O 3 -Pb͑Mg 1/3 Nb 2/3 ͒O 3 -PbTiO 3 crystals was investigated as a function of composition and temperature. The level of intrinsic and/or extrinsic contribution to the total piezoelectric activity was analyzed using Rayleigh method. The results revealed that though 95% of the observed piezoelectric activity in rhombohedral crystals was intrinsic ͑lattice͒, the properties decreased significantly with decreasing temperature. At −150°C, the piezoelectric response decreased by 40%-55% for the compositions close to a morphotropic phase boundary ͑rhombohedral-monoclinic or monoclinic-tetragonal͒, while decreasing only 20%-30% for the compositions in the rhombohedral region. The piezoelectric properties of Pb͑Mg 1/3 Nb 2/3 ͒O 3 -PbTiO 3 polycrystalline ceramics were found to decrease by 75%, showing both intrinsic and extrinsic contributions play important role in the reduction in piezoelectricity at cryogenic temperatures for ceramics. © 2010 American Institute of Physics. ͓doi:10.1063/1.3430059͔ Relaxor-PbTiO 3͑PT͒ based crystals, such as ͑1-x͒Pb͑Zn 1/3 Nb 2/3 ͒O 3 -xPbTiO 3 and ͑1-x͒Pb͑Mg 1/3 Nb 2/3 ͒O 3 -xPbTiO 3 ͑PMN-PT͒, have attracted significant attention owing to their high piezoelectric activity ͑d 33 Ͼ 1500 pC/ N͒ along the ͓001͔ crystallographic direction. 1 In addition to high piezoelectric activity, rhombohedral ternary Pb͑In 1/2 Nb 1/2 ͒O 3 -Pb͑Mg 1/3 Nb 2/3 ͒O 3 -PbTiO 3 ͑PIN-PMN-PT͒ crystals have been studied, 2-4 offering expanded temperature usage range, Ͼ30°C higher than that of commercial PMN-PT binary crystals. The ultrahigh piezoelectric activity in domain engineered relaxor-based crystals is believed to be primarily intrinsic ͑lattice͒ in nature. Two underlying intrinsic mechanisms, including "polarization rotation" ͑Ref. 5͒ and "high piezoelectric anisotropy ͑d 15 / d 33 ӷ 1͒," 6 have been proposed as the origin of the high piezoelectric activity. Actually, an "easy" polarization rotation is directly related to the high piezoelectric anisotropy. 7 Investigations of polycrystalline ceramics and single crystals at cryogenic temperatures 8-13 revealed a high reduction in piezoelectric response, being attributed to the clamping of domain wall motion and/or mobility, 8,9 reflecting a high level of extrinsic contribution in ceramics/crystals. However, based on a recent investigation, 14 the extrinsic contribution was found to be less than 10% of the total piezoelectric response across the compositional range of 0.25Ͻ x Ͻ 0.35 in ͑1-x͒PMN-xPT crystals, owing to the stable domain engineered structure. Thus, it was deemed important to further investigate the intrinsic and extrinsic contributions to the piezoelectric response in relaxor-PT based crystals as a function of decreasing temperature.Rayleigh law has been used to study the degree of intrinsic/extrinsic contribution to dielectric and piezoelectric activity in ferroelectric crystals and ceramics. 15,16 In the present study, the Rayleigh analysis was used to delineate the level of the int...

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“…This is as fast as other types of linear ultrasonic motors. 15 Furthermore, our linear ultrasonic motor demonstrated not only a quick response time from the start/stop conditions, but also to reversals in the direction of motion.…”

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confidence: 82%

“…Recently, it was discovered that piezoelectric Pb͑Mg 1/3 Nb 2/3 ͒O 3 − x % PbTiO 3 ͑PMN− x %PT͒ and Pb͑Zn 1/3 Nb 2/3 ͒O 3 − x % PbTiO 3 ͑PZN− x %PT͒ single crystals have excellent actuation characteristics at cryogenic temperatures. 14,15 Stacks of these piezoelectric crystals operated at 30 K have shown piezoelectric properties superior to that of piezoelectric ceramics at 300 K.…”

mentioning

confidence: 99%