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Updated: Aug 20, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
Field-induced disorder in a gapped spin system with nonmagnetic impurities
H-J Mikeska1, Asimkumar Ghosh, A K Kolezhuk
1Institut für Theoretische Physik, Universität Hannover, 30167 Hannover, Germany.
Abstract:
We study the combined effect of doping and an external magnetic field on S = 1/2 dimers which are weakly coupled by three-dimensional antiferromagnetic interactions J'. We show that application of an external magnetic field H opposes the long-range Ne el order which is known to result from doping with nonmagnetic impurities and drives the system back to the disordered phase if 3D interactions J' are not too large. We discuss the zero temperature phase diagram in the (H,J') plane and suggest that the reentrant behavior can be experimentally observed.
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