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Related Experiment Video

Updated: May 2, 2026

Novel 3D/VR Interactive Environment for MD Simulations, Visualization and Analysis

Novel 3D/VR Interactive Environment for MD Simulations, Visualization and Analysis

Published on: December 18, 2014

Real-time visualization of nanocrystal solid-solid transformation pathways.

Joshua S Wittenberg¹, Timothy A Miller, Erzsi Szilagyi

¹Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.

|March 5, 2014

Summary

This summary is machine-generated.

Understanding material transformations is key for new phases. Femtosecond X-ray diffraction revealed stress-dependent pathways in cadmium sulfide nanorods during structural phase transitions.

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Area of Science:

Materials Science
Condensed Matter Physics
Nanotechnology

Background:

Microscopic transformation pathways are crucial for designing new metastable materials.
Martensitic transformations are a key area of study in materials science.

Purpose of the Study:

To measure and understand the microscopic pathways of solid-solid phase transitions.
To investigate the dynamics of the wurtzite-to-rocksalt structural phase transformation in cadmium sulfide nanorods.

Main Methods:

Utilized femtosecond single-shot X-ray diffraction techniques.
Employed picosecond rise-time laser-generated shocks to trigger phase transitions.
Achieved atomic-scale resolution of transition state dynamics.

Main Results:

Observed a stress-dependent transition path in cadmium sulfide nanorods.
At high stresses, direct conversion to the rocksalt phase occurred without observable intermediates.
At lower stresses, a transient five-coordinated intermediate structure was detected.

Conclusions:

Direct observation of transition state dynamics provides atomic-scale insight into phase transformations.
The findings validate theoretical models and offer a pathway for controlling material synthesis.
This study advances the understanding of martensitic transformations in nanomaterials.