Electrical transport in a quantum dot undergoing Jahn-Teller transition
Abstract
A model is proposed to study the electrical conductance of a quantum dot capable of undergoing structural phase transition . The energy levels of the dot are assumed doubly degenerate so that it can undergo an electrically driven structural transition due to the Jahn-Teller mechanism. The model also allows for the presence of a magnetic field. The dot is described by the well known single impurity Anderson model (SIAM) along with two added terms describing the Jahn-Teller distortion and the magnetic field Calculation of the electrical transport properties of such a quantum dot reveals several interesting new features.
- Publication:
-
Functional Materials
- Pub Date:
- July 2012
- DOI:
- 10.1063/1.4736872
- Bibcode:
- 2012AIPC.1461...54B
- Keywords:
-
- Anderson model;
- electrical conductivity;
- Jahn-Teller effect;
- quantum dots;
- solid-state phase transformations;
- 64.70.K-;
- 71.70.Ej;
- 73.21.La;
- 73.63.Kv;
- Solid-solid transitions;
- Spin-orbit coupling Zeeman and Stark splitting Jahn-Teller effect;
- Quantum dots;
- Quantum dots