Magnon squeezing in antiferromagnetic MnF2 and FeF2

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DOIResolve DOI: http://doi.org/10.1103/PhysRevB.73.184434
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TypeArticle
Journal titlePhysical Review B : condensed matter and materials physics
Volume73
Issue18
Pages184434-1184434-11; # of pages: 11
AbstractQuantum squeezing of a collective spin-wave excitation or magnon using femtosecond optical pulses has been used to generate correlated pairs of spins with equal and opposite wave vectors in antiferromagnetic MnF₂ and FeF₂. in the squeezed state, the fluctuations of the magnetization of a crystallographic unit cell vary periodically in time and are reduced below that of the ground state quantum noise. the results obtained, including their temperature dependence for FeF₂, are compared with earlier spontaneous Raman scattering measurements. The squeezing effect is observed to be at least one order of magnitude stronger in FeF₂ than in MnF₂.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedNo
NPARC number12744282
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Record identifier56f757ba-c67d-427f-a13b-8db311a1fbb5
Record created2009-10-27
Record modified2016-05-09
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