ω ω'ω ω'

M. Cardona, Light Scattering in Solids (1981)J. Tang and S. C. Albrecht, Raman Spectroscopy (1970)

W. Hayes and R. Loudon, Scattering of Light by Crystals (1978)

ω ω'

O1Cu1 Ba O4

O3O2

Cu2Y

0

0

0 100 200 300 400 500 6000

20

40

60

80

100

Raman shift [cm-1]

Γ = 35K ΓBa,Cu = 18K

(zz)

Spec

tral d

ensit

y [1

0-7sr

-1]

CAD, H. Auer, R. Kouba, E. Ya. Sherman, P. Knoll and M. Mayer, PRB 65, 064501 (2002).

0 100 200 300 400 500 6000

20

40

60

80

100

Raman shift [cm-1]

A1g

ωI=514 nmT=300KLDA / optimized lattice

CAD, et al., PRB 65, 064501 (2002).

1.5 2.0 2.5 3.0 3.50

100

200

300

400

500

600

700

800

x10

O2-O3 (zz) O2+O3 (zz) O4 (zz)

Inte

grat

ed in

tens

ity [a

. u.]

Laser energy [eV]

A. Hertrich, C. Cocchi, P. Pavone, and CD, preprint.