PMNT (PMN-PT) Single Crystals and Substrates, Single Side Polished
Chemical formula: Pb(Mg1/3Nb2/3)O3-PbTiO3
Standard specifications:
- Crystal growth method for PMN-PT crystals: Bridgman method
- Cut types (crystal orientations): (001), (110), (111) with miscut precision of +/- 0.5 degree
- Compositions:
- Type 1: PbTiO3 content 28-30 mol%
- Type 2: PbTiO3 content 30-34 mol%
- Single side polished Ra ~ 5 nm, back side fine ground (customized surface polishing is available upon request)
- Sizes: 10 x 10 x 0.5 mm or other custom shapes and sizes upon request. Available sizes: length: 1-70mm, width: 1-30mm
- Poling: Standard PMN-PT substrates are not poled. Poling service is available upon request.
- Surface electrode: Coating with surface electrode is available at an additional cost upon request. Typical electrode coating: silver (Ag) or gold (Au) by sputtering with 200-300 nm thickness.
PMN-PT crystals, substrates and wafers with customized sizes, shapes, orientation, poling directions are available upon request. Please contact us for quotation.
PMN-PT ceramic powder, 325 mesh, is also available. Click here to order.
Specifications of PMN-PT single crystals
|
Parameter |
PMN-PT |
PMN-PT |
cut-Type |
Poling direction |
|
Type 1 |
Type 2 |
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PbTiO3 content (mol%) |
28-30 |
30-34 (closer to 30-31) |
(001) * The two edges of |
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Dielectric constant |
4000-5500 |
5000-8000 |
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Piezoelectric constant d33 (pC/N) |
1200-1600 |
1500-2800 |
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Piezoelectric constant d32 (pC/N) |
-(600-900) |
-(800-1100) |
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Electromechanical coupling factor k33 |
0.87-0.92 |
0.88-0.94 |
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Phase transition temperature Trt (℃) |
90-100 |
80-95 |
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Curie temperature Tc (℃) |
130-140 |
140-160 |
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Coercive field Ec (kV/cm) |
2.0-2.5 |
2.0-2.5 |
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Density (g/cm3) |
8.1 |
8.1 |
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Dielectric constant |
2500-4000 |
3500-5000 |
(110) ** The line mark on the substrate surface indicates that the edge parallel to the line is along the direction. |
|
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Piezoelectric constant d33 (pC/N) |
700-1100 |
1000-1800 |
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Piezoelectric constant d32 (pC/N) |
-(1100-1600) |
-(1500-2200) |
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Piezoelectric constant d15 (pC/N) |
2000-3500 |
3000-4500 |
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Piezoelectric constant g15 (10-3Vm/N) |
45-55 |
55-65 |
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Piezoelectric constant d15 (pC/N) |
3000-4500 |
4000-7000 |
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Piezoelectric constant g15 (10-3Vm/N) |
45-55 |
55-65 |
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Electromechanical coupling factor k32 |
0.86-0.90 |
0.87-0.92 |
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|
Curie temperature Tc (℃) |
130-140 |
140-160 |
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Available sizes |
length: 1-70mm, width: 1-30mm; maximum diameter: 60mm |
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Available thickness |
0.1-10 mm |
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Shapes |
Plates, rings, rods, etc. |
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Surface finish |
Single side polished (SSP) is standard, double side polished (DSP) is optional |
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Electrodes (optional) |
Silver or Gold |
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| To find (001) in-plane orientation for TEM measurement | Using a polarizing microscope: For the (110) wafer, the angle between two extinction bits is 71 degrees or 109 degrees, the direction of the 71 degree bisector is the (110) orientation and the direction of the 109 degree angle bisector is the (001) orientation. | |||
Frequency constant (Nt) values of PMN-PT single crystal: Nt for PMN-PT (001) is ~2270; Nt for PMN-PT (110) is ~2450.
As a novel kind of piezoelectric materials, relaxor-based ferroelectric single crystals exhibit ultrahigh piezoelectric performances, which surpass largely those of conventional PZTs piezoelectric ceramics. Our company can provide three generations of relaxor-based piezocrystals, i.e. Pb(Mg1/3Nb2/3)O3-PbTiO3 (abbreviated as PMN-PT or PMNT), Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 (abbreviated as PIN-PMN-PT or PIMNT) and Mn doped Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 (abbreviated as Mn:PIN-PMN-PT or Mn:PIMNT) in large scale. High quality, large size and uniform crystals are available, which can satisfy various ultrasonic transducers in medical ultrasonic imaging, nondestructive examination and energy harvesting, solid-state actuators and composites such as magnetoelectric ones. The crystals have also good electro-optic properties and excellent pyroelectric properties, which can find application in the fields of electro-optic modulators in optical communications and pyroelectric devices in infrared detection and so on.
The main performance specifications are presented in the above tables. Various cut-type samples can be offered. Please contact us by email to discuss your requirements.
Reference Reading:
Ferroelectrics: Applications
edited by Mickaël Lallart
Typical academia customers of NANOSSR PMN-PT crystals and substrates:
- École polytechnique fédérale de Lausanne (EPFL) in Swiss
- Vellore Institute of Technology in India
- Gwangju Institute of Science and Technology in South Korea
- Brigham Young University in the USA
- Indian Institute of Science in India
- University Brest in France
- Indian Institute of Technology Bombay in India
- The University of Texas at Austin in the USA
- University of Wisconsin-Madison in the USA
- ISTITUTO NAZIONALE DI RICERCA METROLOGICA
I.N.RI.M in Italy - AGH University of Science and Technology in Poland
- TEL-AVIV UNIVERSITY in Israel
- University of California San Diego in the USA
- Cornell University in the USA
- Johannes Gutenberg University in Germany
