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Spontaneously broken time-reversal symmetry in quantum dots.

Steffens, Oliver and Rössler, Ulrich and Suhrke, Michael (1998) Spontaneously broken time-reversal symmetry in quantum dots. Europhysics Letters 44 (2), pp. 222-228.

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We present current-spin density-functional calculations for circular parabolic quantum dots in zero magnetic field. We find the possibility for broken time-reversal symmetry via exchange correlation with spontaneously induced orbital currents. For certain electron numbers, this results in new current textures which give rise to a finite magnetization even for ground states with vanishing total angular momentum.

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Item Type:Article
Institutions:Physics > Institute of Theroretical Physics > Alumni or Retired Professors > Group Ulrich Rössler
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Dewey Decimal Classification:500 Science > 530 Physics
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Deposited On:20 Mar 2007
Last Modified:13 Mar 2014 09:53
Item ID:1372
Owner Only: item control page


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