Pinning of Stripes by Local Structural Distortions in Cuprate High-T-c Superconductors

TY - JOUR

T1 - Pinning of Stripes by Local Structural Distortions in Cuprate High-T-c Superconductors

AU - Tricoli, U.

AU - Andersen, Brian Møller

PY - 2012/7/1

Y1 - 2012/7/1

N2 - We study the spin-density wave (stripe) instability in lattices with mixed low-temperature orthorhombic (LTO) and low-temperature tetragonal (LTT) crystal symmetry. Within an explicit mean-field model, it is shown how local LTT regions act as pinning centers for static stripe formation. We calculate the modulations in the local density of states near these local stripe regions and find that mainly the coherence peaks and the van Hove singularity (VHS) are spatially modulated. Lastly, we use the real-space approach to simulate recent tunneling data in the overdoped regime where the VHS has been detected by utilizing local normal state regions.

AB - We study the spin-density wave (stripe) instability in lattices with mixed low-temperature orthorhombic (LTO) and low-temperature tetragonal (LTT) crystal symmetry. Within an explicit mean-field model, it is shown how local LTT regions act as pinning centers for static stripe formation. We calculate the modulations in the local density of states near these local stripe regions and find that mainly the coherence peaks and the van Hove singularity (VHS) are spatially modulated. Lastly, we use the real-space approach to simulate recent tunneling data in the overdoped regime where the VHS has been detected by utilizing local normal state regions.

U2 - 10.1007/s10948-012-1623-0

DO - 10.1007/s10948-012-1623-0

M3 - Journal article

SN - 1557-1939

VL - 25

SP - 1329

EP - 1332

JO - Journal of Superconductivity and Novel Magnetism

JF - Journal of Superconductivity and Novel Magnetism

IS - 5

ER -