PMNT (PMN-PT) Single Crystals and Substrates, Single Side Polished

Chemical formula: Pb(Mg_1/3Nb_2/3)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
Parameter	Type 1	Type 2
PbTiO3 content (mol%)	28-30	30-34 (closer to 30-31)	(001) * The two edges of 10x10 mm2 surface are parallel to <100> and <010> respectively.	<001>
Dielectric constant	4000-5500	5000-8000
Piezoelectric constant d₃₃ (pC/N)	1200-1600	1500-2800
Piezoelectric constant d₃₂ (pC/N)	-(600-900)	-(800-1100)
Electromechanical coupling factor k₃₃	0.87-0.92	0.88-0.94
Phase transition temperature T_rt (℃)	90-100	80-95
Curie temperature T_c (℃)	130-140	140-160
Coercive field E_c (kV/cm)	2.0-2.5	2.0-2.5
Density (g/cm3)	8.1	8.1

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 <100> direction.	<110>
Piezoelectric constant d₃₃ (pC/N)	700-1100	1000-1800
Piezoelectric constant d₃₂ (pC/N)	-(1100-1600)	-(1500-2200)
Piezoelectric constant d₁₅ (pC/N)	2000-3500	3000-4500		<1-10>
Piezoelectric constant g₁₅ (10^-3Vm/N)	45-55	55-65		<1-10>
Piezoelectric constant d₁₅ (pC/N)	3000-4500	4000-7000		<111>
Piezoelectric constant g₁₅ (10^-3Vm/N)	45-55	55-65		<111>
Electromechanical coupling factor k₃₂	0.86-0.90	0.87-0.92		<110>
Curie temperature T_c (℃)	130-140	140-160		<110>

Available sizes	length: 1-70mm, width: 1-30mm; maximum diameter: 60mm
Available thickness	0.1-10 mm
Shapes	Plates, rings, rods, etc.
Surface finish	Single side polished (SSP) is standard, double side polished (DSP) is optional
Electrodes (optional)	Silver or Gold
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(Mg_1/3Nb_2/3)O₃-PbTiO₃ (abbreviated as PMN-PT or PMNT), Pb(In_1/2Nb_1/2)O₃-Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ (abbreviated as PIN-PMN-PT or PIMNT) and Mn doped Pb(In_1/2Nb_1/2)O₃-Pb(Mg_1/3Nb_2/3)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

relationship between crystal plane and poling direction PMNT

References:

Study on dielectric and piezoelectric properties of 0.7 Pb(Mg1/3Nb2/3)O3-0.3 PbTiO3 single crystal with nano-patterned composite electrode, J Appl Phys. 2013 Sep 21; 114(11): 114103. doi: 10.1063/1.4821517

Growth and properties of PMN–PT single crystals, Physica C: Superconductivity and its Applications, Volumes 364–365, November 2001, Pages 678-683

Pb(Mg1/3Nb2/3)O3–PbTiO3 (PMN-PT) Material for Actuator Applications, Smart Materials Research, Volume 2011, https://doi.org/10.1155/2011/452901

Typical academia customers of MSE Supplies 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

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