Frustrated quasi-one-dimensional quantum magnet in magnetic field

Oleg Starykh

University of Utah, Department of Physics and Astronomy, Salt Lake City, USA

Geometrical frustration and low dimensionality play crucial roles in many experimental systems of current interest. In this talk I describe non-trivial interplay between these two elements in determining the phase diagram of the spatially anisotropic triangular antiferromagnet in an applied magnetic field. I make extensive comparison with much studied quantum antiferromagnet Cs2CuCl4 and argue that its complicated phase diagram is controlled by extremely small anisotropic Dzyaloshinskii-Moriya interactions.

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