Physics – Condensed Matter – Superconductivity
Scientific paper
1999-08-21
PHYS REV B61 R11898 (2000)
Physics
Condensed Matter
Superconductivity
RevTex 5pages, 4figures; Manuscript rewritten, figures revised, and direct comparisons with experiments added
Scientific paper
10.1103/PhysRevB.61.R11898
We study the evolution of the neutron cross-section with variable frequency $\omega$ and fixed $T$ below $T_c$ in two different cuprate families. Our calculations, which predominantly probe the role of d-wave pairing, lead to generic features, independent of Fermi surface shapes. Among our findings, reasonably consistent with experiment, are (i) for $\omega $ near the gap energy $\Delta$, both optimal {LaSrCuO} and slightly underdoped YBCO exhibit (comparably) incommensurate peaks (ii) peak sharpening below $T_c$ is seen in {LaSrCuO}, (iii) quite generically, a frequency evolution from incommensurate to commensurate and then back to incommensurate structure is found with increasing $\omega$. Due to their narrow $\omega$ regime of stability, commensurate peaks in {LaSrCuO} should be extremely difficult to observe.
Kao Ying-Jer
Levin Kathryn
Si Qimiao
No associations
LandOfFree
Frequency Evolution of Neutron Peaks Below Tc: Commensurate and Incommensurate Structure in LaSrCuO and YBaCuO does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Frequency Evolution of Neutron Peaks Below Tc: Commensurate and Incommensurate Structure in LaSrCuO and YBaCuO, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency Evolution of Neutron Peaks Below Tc: Commensurate and Incommensurate Structure in LaSrCuO and YBaCuO will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-324162