HOPG
Company NT-MDT supply with Highly Oriented Pyrolytic Graphite (HOPG). It's a type of pure, highly laminar graphite used as an atomic-scale calibration standard for atomic force microscopy and scanning tunneling microscopy.
Such HOPG properties as atomic plane surface and good conductivity make it the best material for STM calibration and the excellent substrate for different samples. HOPG is a material that consists of many atomic layers of carbon highly oriented among each other. HOPG is manufactured at the temperature of 3273K and remains stable at the temperatures up to 2000°C in the inert environment. The parallelism of atomic layers is characterized by "mosaic spread angle". The less this angle the higher the quality of HOPG is.
Such HOPG properties as atomic plane surface and good conductivity make it the best material for STM calibration and the excellent substrate for different samples. HOPG is a material that consists of many atomic layers of carbon highly oriented among each other. HOPG is manufactured at the temperature of 3273K and remains stable at the temperatures up to 2000°C in the inert environment. The parallelism of atomic layers is characterized by "mosaic spread angle". The less this angle the higher the quality of HOPG is.
| HOPG ZYA quality |
| This is the highest quality HOPG material, Mosaic Spread 0.4ё0.7 degree. |
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| HOPG ZYB quality |
| HOPG material, Mosaic Spread 0.8ё1.2 degrees. |
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| HOPG ZYH quality |
| HOPG material, Mosaic Spread 3.5ё5.0 degrees. |
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| SiC Calibration Samples |
| 6H-SiC(0001) based calibration sample is designed to perform easy calibrations of AFM scanner vertical movement in several nanometers interval. |
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