On Wednesday, May 25th a two-hour discussion on "Stabilization of Quasicrystals," was held as part of ICQ9. This lively discussion covered the following topics:

thermodynamics
cluster stability
role of defects and disorder, including vacancies and phasons

The session was guided by three leaders: Walter Steurer, Marc de Boissieu, and Chris Henley. Each leader put together a paper to form the basis for discussion. The latest versions of their papers may be downloaded using the links below:

Stable Clusters in Quasicrystals - Fact or Fiction? by Walter Steurer

Stability of Quasicrystals: Energy, Entropy, and Phason Modes by Marc de Boissieu

Clusters, Phason Elasticity, and Entropic Stabilization: A Theory Perspective by Chris Henley

 

In addition, Chris Henley took notes during the discussion and solicited comments from people via email and generously contributed his time to put this information into a paper. This summary may be download using the link below:

Discussion on Clusters, Phasons, and Quasicrystal Stabilization
edited by Chris Henley, Marc de Boissieu, and Walter Steurer

 

These papers will be included as part of the Conference Proceedings, published in Philosophical Magazine.

 

 

 

Special Sessions

Special Discussion Session

Stabilization of Quasicrystals There will be a two-hour discussion on "Stabilization of Quasicrystals," in the late afternoon of Wednesday, 25 May. This is a broad topic with many divergent, but interconnected, viewpoints represented within the  research community. The broad goal of the session is to air and summarize these viewpoints. The following specific topics will be covered: thermodynamics cluster stability role of defects and disorder, including vacancies and phasons Any and all ICQ9 attendees can contribute to this discussion. It will be guided by three leaders: Walter Steurer, Marc de Boissieu, and Chris Henley. Each leader will be putting together a paper to form the basis for the discussion. We strongly encourage you to download them in advance: Stable Clusters in Quasicrystals - Fact or Fiction? by Walter Steurer Stability of Quasicrystals: Energy, Entropy, and Phason Modes by Marc de Boissieu   The work of the session will be to: (i) define common terminology; (ii) describe any consensus that might emerge within the group; (iii) define the open problems, and (iv) describe needs for specific experiments or calculations. The discussion will be summarized as part of the Conference Proceedings, published in Philosophical Magazine.

 

Schedule

Invited Speakers Information

Tutorial Information

History and Discussion Session Information