Itinerant Ferromagnetism in an Atom Trap
Berdnikov, Ilya and Coleman, P. and Simon, Steven H. (2009) Itinerant Ferromagnetism in an Atom Trap. Physical Review B, 79 (224403). pp. 1-5. ISSN 1098-0121 AbstractWe propose an experiment to explore the magnetic phase transitions in interacting fermionic
Hubbard systems, and describe how to obtain the ferromagnetic phase diagram of itinerant electron
systems from these observations. In addition signatures of ferromagnetic correlations in the observed
ground states are found: for large trap radii (trap radius RT > 4, in units of coherence length ε),
ground states are topological in nature — a “skyrmion” in 2D, and a “hedgehog” in 3D. | Additional Information: | The authors would like to thank T.-L. Ho and T.
Esslinger for fruitful discussions. Supported by NSF
Grants No. DMR-0605935, DOE Grant No. DE-FE02-
00ER45790, and the Rutgers-Lucent Foundation. |
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| Keywords: | Itinerant Ferromagnetism; Atom Trap; phase transitions; Hubbard systems; |
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| Subjects: | Science & Engineering > Mathematical Physics |
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| ID Code: | 2696 |
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| Deposited By: | Steven H. Simon |
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| Deposited On: | 06 Sep 2011 16:36 |
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| Journal or Publication Title: | Physical Review B |
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| Publisher: | American Physical Society |
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| Refereed: | Yes |
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| URL: | http://prb.aps.org/ |
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