1. Department of Chemical and Materials Engineering, University of Nevada-Reno, Reno, Nevada 89557, USA
2. Department of Materials Science, California Institute of Technology, Pasadena, CA 91125, USA
3. I. Physikalisches Institut, University of Goettingen, 37077 Goettingen, Germany
4. Materials and Process Simulation Center, California Institute of Technology, Pasadena, CA 91125, USA