KTaO3 Substrate
Description
Potassium tantalate single crystal is a new type of crystal with perovskite and pyrochlore structure. It has broad market prospects in the application of superconducting thin films. It can provide single crystal substrates of various sizes and specifications with perfect quality.
Properties
| Growth Method |
Top-seeded melt method |
| Crystal System |
Cubic |
| crystallographic Lattice Constant |
a= 3.989 A |
| Density（g/cm3） |
7.015 |
| Melting Point（℃） |
≈1500 |
| Hardness (Mho) |
6.0 |
| Thermal Conductivity |
0.17 w/m.k@300K |
| Refractive |
2.14 |
KTaO3 Substrate Definition
KTaO3 (potassium tantalate) substrate refers to a crystalline substrate made of the compound potassium tantalate (KTaO3).
KTaO3 is a perovskite material with a cubic crystal structure similar to SrTiO3. The KTaO3 substrate has properties that make it particularly useful in a variety of research and device applications. The high dielectric constant and good electrical conductivity of KTaO3 make it suitable for applications such as capacitors, memory devices, and high-frequency electronic circuits. In addition, KTaO3 substrates have excellent piezoelectric properties, making them useful for piezoelectric applications such as sensors, actuators, and energy harvesters.
The piezoelectric effect allows the KTaO3 substrate to generate charges when subjected to mechanical stress or mechanical deformation. In addition, KTaO3 substrates can exhibit ferroelectricity at low temperatures, making them relevant for the study of condensed matter physics and the development of nonvolatile memory devices.
Overall, KTaO3 substrates play an important role in the development of electronic, piezoelectric, and ferroelectric devices. Their properties such as high dielectric constant, good electrical conductivity, and piezoelectricity make them ideal substrate materials for a wide range of applications.
Superconducting Thin Films Definition
A superconducting thin film refers to a thin layer of material with superconductivity, that is, the ability to conduct electric current with zero resistance. These films are typically made by depositing superconducting materials onto substrates using various fabrication techniques such as physical vapor deposition, chemical vapor deposition, or molecular beam epitaxy.
