Quantum criticality and non-Fermi-liquid behavior in a two-level two-lead quantum dot
β Scribed by Wang, Xin; Millis, Andrew J.
- Book ID
- 121264662
- Publisher
- The American Physical Society
- Year
- 2010
- Tongue
- English
- Weight
- 285 KB
- Volume
- 81
- Category
- Article
- ISSN
- 1098-0121
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π SIMILAR VOLUMES
We present a pressure study of electronic transport properties of Yb 0.9 La 0.1 Rh 2 Si 2 . The stoichiometric system YbRh 2 Si 2 is close to a quantum critical point (QCP) and shows pronounced non-Fermi-liquid (NFL) properties. However, weak antiferromagnetic (AFM) order is found below T m ΒΌ 70 mK.
The energy level structure of an interacting system of electrons is analysed. The model chosen describes electrons in a semiconductor quantum dot system, whose energy levels could be accessed via finite-bias transport experiments. We find that the normalized level spacing of the system exhibits sign