Effect of Structure on the Electronic Density of States of Doped Lanthanum Cuprate

Details Effect of Structure on the Electronic Density of States of Doped Lanthanum Cuprate Effect of Structure on the Electronic Density of States of Doped Lanthanum Cuprate

1993-06-03

arxiv.org/abs/cond-mat/9306011v1

Phys Rev B 48, 9935 (1993)

Physics

Condensed Matter

9 pages, plain TeX plus macros, 4 figures available from the authors

Scientific paper

10.1103/PhysRevB.48.9935

We present a series of detailed band calculations on the various structural phases of doped lanthanum cuprate: HTT, LTO, and LTT. The LTO distortion is shown to have little effect on the electronic density of states (DOS). A fit to the pressure dependence of the superconducting transition temperature indicates that only 2.5% of the DOS is affected by the HTT$\to$ LTO transition. The LTT distortion also has little effect on the DOS for the experimental value of the octahedral tilt angle. Larger tilt angles, though, lead to a dramatic change in the DOS.

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