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 Expert  711798

Expert in Carbon Clusters, Doped Semiconductors, Chemical Impurity Material, etc.

Available for your Consulting and Expert Witness Needs

North Carolina (NC)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise:

Listed with other top experts in: 

Expert has theoretically studied various carbon clusters since 1985. The work included modeling of the aggregation of carbon vapor, studies of the dynamics and formation of C60 and other fullerenes, computation of band structure and doping properties of buckytubes, and investigation of the stabilities of large multilayer fullerenes (or the so-called "bucky-onions"). He has hands-on experience in a variety of techniques, including quantum molecular dynamics, semi-empirical methods, and various force fields.

During most of his professional career, he has worked on the theory of impurities, doping, and diffusion in semiconductors. He has considered both shallow and deep impurities, as well as native defects, which can introduce electrically-active levels, as well as mediate the diffusion of dopants. His recent studies have concentrated upon self-diffusion and n-type doping in diamond; impurity-induced interdiffusion in GaAS/AlAs superlattices; and the doping and self-compensation effects in SiC and GaN.

His general area of expertise is in theoretical condensed matter physics and chemistry, as well as theoretical materials science. His interests have been fairly broad, and have included solids, surfaces, interfaces, and clusters. Expert has substantial experience in determining the atomic, elastic, and electronic properties of crystals through band structure and total energy methods, both first-principles (e.g. quantum molecular dynamics) and semi-empirical.

Expert has theoretically studied the band structure, doping, diffusion, and native defects in GaAs. He has also investigated the mechanisms of impurity-induced disordering in GaAs/AlAs structures. He has worked on the theory of semiconductor materials during most of his professional career. This includes band structure theory, impurities and doping, surfaces and interfaces, and recently, mechanisms of growth.






carbon cluster




quantum molecular dynamics


chemical impurity material


doped semiconductor


semiconductor doping


semiconductor diffusion


semiconductor impurity material


condensed-matter theory


solid-state physics


condensed-matter physics




crystalline structure


lattice structure


gallium arsenide semiconductor


semiconductor material

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Raleigh, North Carolina;  Greensboro, North Carolina;  Durham, North Carolina;  Winston Salem, North Carolina;  Fayetteville, North Carolina;  Cary, North Carolina;  High Point, North Carolina;  Jacksonville, North Carolina;  Greenville, North Carolina;  and Rocky Mount, North Carolina.

Year   Degree   Subject   Institution  
1977   PhD   Physics   University of Lund, Sweden  
1973   BS   Physics and Mathematics   University of Lund, Sweden  

Work History:
Years   Employer   Department   Title  

1986 to


(Undisclosed University)


Department Of Physics


Associate/Full Professor


1980 to 1986




Corporate Research Science Labs


Senior Physicist


1978 to 1980




Research Division




Career Accomplishments:

He is a member of APS (three of its Divisions) and its Topical Group in Computational Physics, the Material Research Society, and Sigma Xi.

Professional Appointments

Expert has been the Chairman, Co-Organizer, or Member of several symposia, conferences, and technical meetings. Examples include: Member, Program Committee, 7th Trieste Semiconductor Symposium on Wide-Band-Gap Semiconductors, Trieste, Italy (June 1992); and Chairman, Organizing Committee, The Fourth Annual Workshop on Recent Developments in Electronic Structure Algorithms, Raleigh, NC (June 1992).


He received the "Outstanding Innovation Award" from IBM.

Selected Publications and Publishers  
 - Physical Review Letters  

Consulting Services:
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Country / Region   Summary
Sweden   Expert was educated in Sweden.

Language Skills:
Foreign Language   Description
Swedish   Expert is fluent.
Polish   Expert is fluent.

Additional Skills and Services:
Supplier and Vendor Location and Selection

He has experience locating vendors of computer equipment, including Unix workstations, personal computers (primarily Macintosh), peripherals, and scientific software.

He has access to the following resources: printed materials, catalogs, and personal contacts.


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