CMT Seminar - TODAY - Rajdeep Sensarma, Tata Institute of Fundamental Research - 11:30am, Smith Seminar Room (1080 PRB)

[Longbrake, Patricia]

Please join us TODAY, Monday, December 2nd for the Condensed Matter Theory Seminar presented by Rajdeep Sensarma, Tata Institute of Fundamental Research at 11:30am in the Smith Seminar Room (1080 PRB).

Ferromagnetic Response of a "High Temperature" Quantum Antiferromagnet

Precise implementation of quantum many-body lattice Hamiltonians with ultracold atoms has provided a novel platform to study strongly interacting many-body physics relevant to condensed matter systems like high temperature superconductors. One of the main goals of cold atom experiments now is to observe antiferromagnetic spin ordering of fermions in a repulsive fermi Hubbard model. In this talk I will show that a closely related system, called the ionic Hubbard model,  provides a better chance of observing antiferromagnetic ordering in fermions. I will also discuss a strange phenomenon, that the antiferromagnetically ordered system actually shows a ferromagnetic dynamic response in a wide temperature range.

Thank you,
Trisch

[The Ohio State University]
Trisch Longbrake
Administrative Associate I
Department of Physics Condensed Matter
2196 Physics Research Building, 191 W. Woodruff Ave., Columbus, OH 43210
614-292-2778 Office / 614-292-7557 Fax
longbrake.6 at osu.edu<mailto:longbrake.6 at osu.edu> osu.edu<http://osu.edu/>

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