Lifetime of antiferromagnetic spinwave due to electrons correlation

Mori, Michiyasu

We have study the bilayer system of an AF insulator (Mott insulator) and a correlated metal, in which the double occupancy is forbidden. The self-energy of antiferromagnetic magnon in the Mott insulator is calculated in the second order of a magnetic interlayer coupling. The Gutzwiller approximation is used to include electrons correlation in the correlated metal. We find that the lifetime of antiferromagnetic magnon in the Mott insulator is greatly supressed by the electrons correlation in the correlated metal.

Language	:	English
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Meeting title	:	International Conference on Strongly Correlated Electron Systems (SCES 2017)
Held date	:	2017/07
Location (city)	:	Prague
Location (country)	:	Czech Republic
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Registration No. : BB20170694
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