2018 Fiscal Year Annual Research Report
A new approach to the Anderson transition in electron systems with Coulomb interactions
| Project/Area Number |
26400393
|
|---|
| Research Institution | Osaka University |
|---|
Principal Investigator |
SLEVIN KEITH 大阪大学, 理学研究科, 准教授 (90294149)
|
|---|
| Project Period (FY) |
2014-04-01 – 2019-03-31
|
| Keywords | doped semiconductors / Coulomb interaction / Kondo effect / Anderson transition |
|---|
| Outline of Annual Research Achievements |
In semiconductors, there is a metal-insulator transition (MIT) as a function of doping concentration. We are using computer simulations to understand this transition. We investigated how wavefunction multifractality at the MIT affects the distribution of Kondo temperatures using large-scale simulations. This has implications for the temperature dependence of the magnetic susceptibility at the MIT (with S. Kettemann and T. Ohtsuki). The work (with T. Ohtsuki) on the adaption of the transfer matrix method for massively parallel supercomputers was published and reported at conferences in Korea, Germany and Japan. We continued to investigate the use of machine learning to analyse wavefunctions produced in the simulation of the doped semiconductor (with Y. Harashima, T. Mano and T. Ohtsuki).
|
