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EnglishWe argue that a quantum critical point associated with the putative metal–insulator transition phenomenon in 2D controls not only the usual quantum critical sector but also a range of the low temperature insulator sector. The extended range of criticality permits a unified analysis of data from the insulating critical sector and quantum critical sector. Both the dynamical critical exponent z and the correlation length critical exponent can then be determined from published data from a single experiment in the insulator critical region. The resulting value of is consistent with the T dependence of the resistivity in the quantum critical sector which provides support for the presence of a quantum critical point.
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| Titolo: | Quantum critical point description of the 2D metal insulator transition |
| Autori: | |
| Data di pubblicazione: | 2008 |
| Rivista: | |
| Abstract: | We argue that a quantum critical point associated with the putative metal–insulator transition phenomenon in 2D controls not only the usual quantum critical sector but also a range of the low temperature insulator sector. The extended range of criticality permits a unified analysis of data from the insulating critical sector and quantum critical sector. Both the dynamical critical exponent z and the correlation length critical exponent can then be determined from published data from a single experiment in the insulator critical region. The resulting value of is consistent with the T dependence of the resistivity in the quantum critical sector which provides support for the presence of a quantum critical point. |
| Handle: | http://hdl.handle.net/11581/112040 |
| Appare nelle tipologie: | Articolo |
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