Article ID Journal Published Year Pages File Type
1594386 Solid State Communications 2010 5 Pages PDF
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.
Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
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