Doping and temperature dependence of<i>c</i>-axis optical phonons in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">YBa</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cu</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow

Schützmann, J.; Tajima, S.; Miyamoto, Satoru; Sato, Y.; Hauff, R.

doi:10.1103/physrevb.52.13665

Cited by 92 publications

(111 citation statements)

References 29 publications

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“…2) and we compare our predictions with experimental data for the trilayer compound Tl 2 Ba 2 Ca 2 Cu 3 O 10 (Tl-2223) obtained by Zetterer et al [7] (Sec. 3). Surprisingly, these data are found to be fairly different from those of Bi 2 Sr 2 Ca 2 Cu 3 O 10 .…”

Section: Introductioncontrasting

confidence: 39%

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Phonon anomalies in trilayer high-Tc cuprate superconductors

Dubroka

Munzar

2004

Physica C: Superconductivity

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We present an extension of the model proposed recently to account for dramatic changes below T c (anomalies) of some c-axis polarized infrared-active phonons in bilayer cuprate superconductors, that applies to trilayer high-T c compounds. We discuss several types of phonon anomalies that can occur in these systems and demonstrate that our model is capable of explaining the spectral changes occurring upon entering the superconducting state in the trilayer compound Tl 2 Ba 2 Ca 2 Cu 3 O 10 . The low-temperature spectra of this compound obtained by Zetterer and coworkers display an additional broad absorption band, similar to the one observed in underdoped YBa 2 Cu 3 O 7−δ and Bi 2 Sr 2 CaCu 2 O 8 . In addition, three phonon modes are strongly anomalous. We attribute the absorption band to the transverse Josephson plasma resonance, similar to that of the bilayer compounds. The phonon anomalies are shown to result from a modification of the local fields induced by the formation of the resonance. The spectral changes in Tl 2 Ba 2 Ca 2 Cu 3 O 10 are compared with those occurring in Bi 2 Sr 2 Ca 2 Cu 3 O 10 , reported recently by Boris and coworkers.

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Section: Introductioncontrasting

confidence: 39%

“…Some of the phonon modes in the high-T c cuprate superconductors are strongly renormalized when going from the normal to the superconducting state [1,2,3,4,5,6,7,8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Phonon anomalies in trilayer high-Tc cuprate superconductors

Dubroka

Munzar

2004

Physica C: Superconductivity

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“…[14][15][16] Indeed, Ru-1212 is structurally similar to the rare-earth cuprate superconductors like Y-123 except that the Cu-O chain layers are replaced by RuO 2 square planar layers. Ignoring the rotations of the RuO 6 octahedra, an approximate structure is then of tetragonal symmetry P 4/mmm.…”

Section: Resultsmentioning

confidence: 99%

Phonon anomalies and electron-phonon interaction in theRuSr2GdCu2O
Boris
¹
,
Mandal
²
,
Bernhard
³

et al. 2001
Phys. Rev. B
24
3
8
2
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Critical behavior of the infrared reflectivity of RuSr2GdCu2O8 ceramics is observed near the superconducting TSC = 45 K and magnetic TM = 133 K transition temperatures. The optical conductivity reveals the typical features of the c-axis optical conductivity of strongly underdoped multilayer superconducting cuprates. The transformation of the Cu-O bending mode at 288 cm −1 to a broad absorption peak at the temperatures between T * = 90 K and TSC is clearly observed, and is accompanied by the suppression of spectral weight at low frequencies. The correlated shifts to lower frequencies of the Ru-related phonon mode at 190 cm −1 and the mid-IR band at 4800 cm −1 on decreasing temperature below TM are observed. It provides experimental evidence in favor of strong electron-phonon coupling of the charge carriers in the Ru-O layers which critically depends on the Ru core spin alignment. The underdoped character of the superconductor is explained by strong hole depletion of the CuO2 planes caused by the charge carrier self-trapping at the Ru moments.

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“…The details are well known and some of these are outlined later in this Activity Report (page [1][2][3][4] . O n 1 March 1998 Brookhaven Science Associates will take responsibility for setting the standards for the second half century of research at Brookhaven. …”

Section: -2mentioning

confidence: 99%

“…A plot of the diffraction data around the most intense peak of chrysotile in an alumina matrix is in Figure A- 12-20 (1996). [2] J. A.…”

Doping and temperature dependence ofc-axis optical phonons inYBa2Cu3

Cited by 92 publications

References 29 publications

Phonon anomalies in trilayer high-Tc cuprate superconductors

Phonon anomalies in trilayer high-Tc cuprate superconductors

Phonon anomalies and electron-phonon interaction in theRuSr2GdCu2O
Boris
¹
,
Mandal
²
,
Bernhard
³

et al. 2001
Phys. Rev. B
24
3
8
2
View full text Add to dashboard Cite

BNL National Synchrotron Light Source activity report 1997

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Doping and temperature dependence ofc-axis optical phonons inYBa2Cu3

Cited by 92 publications

References 29 publications

Phonon anomalies in trilayer high-Tc cuprate superconductors

Phonon anomalies in trilayer high-Tc cuprate superconductors

Phonon anomalies and electron-phonon interaction in theRuSr2GdCu2OBoris1, Mandal2, Bernhard3 et al. 2001Phys. Rev. B24382View full textAdd to dashboardCite

BNL National Synchrotron Light Source activity report 1997

Contact Info

Product

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About

Phonon anomalies and electron-phonon interaction in theRuSr2GdCu2O
Boris
¹
,
Mandal
²
,
Bernhard
³

et al. 2001
Phys. Rev. B
24
3
8
2
View full text Add to dashboard Cite