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Magnetic Structure of Electronic Inhomogeneities in Cuprates: Competition between Stripes and Spirals

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Seibold G., Markiewicz R., Lorenzana J.
Acta Physica Polonica A
|
2012
|
vol. 121
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issue 5-6
1019-1022
EN
It is shown that the magnetic structure of high-T_{c} superconductors is strongly influenced by the next-nearest neighbor hopping parameter t' which distinguishes different families of cuprates. Our investigations indicate that uniform spirals get favored by a large t'/t ratio but are unstable at small doping towards stripes with spin canting. For large |t'/t| spirals can be stabilized under certain conditions in the overdoped regime which may explain the elastic incommensurate magnetic response recently observed in iron-co-doped Bi2201 materials.
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