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All-Electrical Measurement of the Density of States in (Ga,Mn)As

Neumaier, Daniel, Turek, Marko, Wurstbauer, Ursula, Vogl, Anton, Utz, Martin, Wegscheider, Werner and Weiss, Dieter (2009) All-Electrical Measurement of the Density of States in (Ga,Mn)As. Physical Review Letters (PRL) 103, p. 87203.

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We report on electrical measurements of the effective density of states in the ferromagnetic semiconductor material (Ga,Mn)As. By analyzing the conductivity correction to an enhanced electron-electron interaction the electrical diffusion constant was extracted for (Ga,Mn)As samples of different dimensionality. Using the Einstein relation allows us to deduce the effective density of states of (Ga,Mn)As at the Fermi energy.

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Item type:Article
Date:19 August 2009
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider
Projects:SFB 689: Spinphänomene in reduzierten Dimensionen
Identification Number:
75.50.Pp; 71.20.-b; 73.23.-bPACS
Dewey Decimal Classification:500 Science > 530 Physics
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:9423
Owner only: item control page


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