What is it about?

Calculated X-ray absorption spectra (XAS) are discussed in connection to zero point motion.

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Why is it important?

Vibration effects in 2D-stored nanostructured materials can affect the mechanical properties in unexpected ways. It is therefore of great interest to examine the properties of the vibration modes in these materials. One of the most common 2D materials is graphite which is a mineral consisting solely of the elementary carbon where the carbon atoms form crystals with flat hexagonally structured layers. A related 2D material is boron nitride which is a rare mineral that also consists of hexagonally structured layers of both carbon and nitrogen atom.


Graphite and hexagonal boron nitride are archetypal layer structures that share many functions with the related 2D graphene and BN monolayer materials. Generally, vibrations are important for light atoms in low-dimensional structures, where the electron-phonon coupling is improved and exhibits high vibrational frequencies. The researchers predict that vibrational effects are important in a large temperature range and encourage new temperature-dependent experiments on low-dimensional materials with other light elements.

Associate Prof. Martin Magnuson
Department of Physics, Chemistry and Biology (IFM)

Read the Original

This page is a summary of: Vibrational Effects in X-ray Absorption Spectra of 2D Layered Materials, The Journal of Physical Chemistry C, February 2019, American Chemical Society (ACS),
DOI: 10.1021/acs.jpcc.9b00179.
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