Spin-Flop Domains in Mn<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

An intermediate state is shown to exist between the antiferromagnetic and spin-flop states of antiferromagnetic Mn${\mathrm{F}}_{2}$. This state consists of alternate thin-slab domains of antiferromagnetic and spin-flop material. Experimental evidence includes NMR, Faraday rotation, optical-absorption spectroscopy, and photographs of the domain structure. A molecular field model is used to calculate the field width of the domain region and the physical width of the domains. Reasonable numerical agreement is found.

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