Emergent Electronic Orders in Hole-doped BaFe2As2
Invited
Abstract
The strong coupling of magnetism with nematicity has been found to be an identifying characteristic of the parent ground state of many iron pnictide superconducting families. Recently, the surprising discovery of the reentrant C4 phase in many hole-doped pnictides has raised the interesting possibility that there exists a parameter regime where such coupling is not necessarily the lowest energy ground state. In such a reentrant C4 phase, the spins remain ordered and reconstructs into a double-Q magnetic order while the lattice reverts back to tetragonal. In this talk, I will discuss our experimental explorations of this reentrant C4 phase and electronic phases in its vicinity in an effort to gain insights into the microscopic origin of this reentrant C4 phase.
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Presenters
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Ming Yi
Physics Department, University of California at Berkeley, Physics, University of California, Berkeley, Univ of California - Berkeley, University of California - Berkeley, University of California
Authors
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Ming Yi
Physics Department, University of California at Berkeley, Physics, University of California, Berkeley, Univ of California - Berkeley, University of California - Berkeley, University of California