Title: Modulations of orders around magnetic impurities in high-temperature superconductors
Abstract: By using a model Hamiltonian with competing antiferromagnetic (AFM) spin density wave (SDW) and d-wave superconductivity orders, the spin and charge structures around magnetic impurities in high-temperature superconductors is investigated. We find one-dimensional stripe and two-dimensional checkerboard-like modulations of orders around a magnetic impurity. A phase diagram of next-nearest-neighbor hopping strength |t′| versus AFM interaction U for various patterns of orders in the presence or absence of a magnetic impurity is given. Moreover, the impurity-induced stripe orders can transit to two-dimensional modulations for smaller impurity strength.
Publication Year: 2010
Publication Date: 2010-09-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 2
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