Inelastic x-ray study of phonon broadening and charge-density wave formation in ortho-Ⅱ-ordered YBa_2Cu_3O_(6.54)

E. Blackburn; J. Chang; A. H. Said; B. M. Leu; Ruixing Liang; D. A. Bonn; W. N. Hardy; E. M. Forgan; S. M. Hayden

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Inelastic x-ray study of phonon broadening and charge-density wave formation in ortho-Ⅱ-ordered YBa_2Cu_3O_(6.54)

机译：正交Ⅱ阶YBa_2Cu_3O_（6.54）中声子展宽和电荷密度波形成的非弹性X射线研究

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Inelastic x-ray scattering is used to investigate charge-density wave (CDW) formation and the low-energy lattice dynamics of the underdoped high-temperature superconductor ortho-Ⅱ YBa_2Cu_3O_(6.54). We find that, for a temperature ～1/3 of the CDW onset temperature (≈155 K), the CDW order is static within the resolution of the experiment, that is the inverse lifetime is less than 0.3 meV. In the same temperature region, low-energy phonons near the ordering wave vector of the CDW show large increases in their linewidths. This contrasts with the usual behavior in CDW systems where the phonon anomalies are strongest near the CDW onset temperature.

机译：利用非弹性X射线散射研究了欠掺杂高温超导体邻位-ⅡYBa_2Cu_3O_（6.54）的电荷密度波（CDW）的形成和低能晶格动力学。我们发现，当温度约为CDW起始温度的1/3（约155 K）时，CDW阶数在实验的分辨率内是静态的，即逆寿命小于0.3 meV。在相同温度区域，CDW的有序波矢附近的低能声子的线宽大幅度增加。这与CDW系统中通常的行为相反，在CDW系统中，声子异常在CDW起始温度附近最强。

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来源
《Physical review》 |2013年第5期|054506.1-054506.7|共7页
作者
E. Blackburn; J. Chang; A. H. Said; B. M. Leu; Ruixing Liang; D. A. Bonn; W. N. Hardy; E. M. Forgan; S. M. Hayden;
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作者单位

School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom;

Institut de la matiere complexe, Ecole Polytechnique Federate de Lausanne (EPFL), CH-1015 Lausanne, Switzerland;

Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA;

Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA;

Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T1Z1, Canada,Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada;

Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T1Z1, Canada,Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada;

Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T1Z1, Canada,Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada;

School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom;

H. H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, United Kingdom;

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charge-density-wave systems; phonons; cuprate superconductors (high-Tc and insulating parent compounds);

机译：电荷密度波系统;声子铜酸盐超导体（高Tc和绝缘母体化合物）;

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1. X-Ray Diffraction Observations of a Charge-Density-Wave Order in Superconducting Ortho-Ⅱ YBa_2Cu_3O_(6.54) Single Crystals in Zero Magnetic Field [J] . E. Blackburn, J. Chang, M. Huecker, Physical review letters . 2013,第13期

机译：零磁场中超导Ortho-ⅡYBa_2Cu_3O_（6.54）单晶的电荷密度波阶的X射线衍射观察
2. Inelastic X-ray scattering in YBa_2Cu_3O_(6.6) reveals giant phonon anomalies and elastic central peak due to charge-density-wave formation [J] . M. Le Tacon, A. Bosak, S. M. Souliou, Nature physics . 2014,第1期

机译：YBa_2Cu_3O_（6.6）中的非弹性X射线散射揭示了巨大的声子异常和由于电荷密度波形成而产生的弹性中心峰
3. Resonant x-ray scattering study of charge-density wave correlations in YBa_2Cu_3O_(6+x) [J] . S. Blanco-Canosa, A. Frano, E. Schierle, Physical review . 2014,第5期

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6. The microscopic structure of charge density waves in underdoped YBa2Cu3O6.54 revealed by X-ray diffraction [O] . E. M. Forgan, E. Blackburn, A. T. Holmes, -1

机译：X射线衍射揭示YBa2Cu3O6.54掺杂不足的电荷密度波的微观结构
7. Inelastic x-ray study of phonon broadening and charge-density wave formation in ortho-II-ordered YBa₂Cu₃O_6.54 [O] . Blackburn, E., Chang, J., Said, A. H., 2013

机译：正交II阶YBa _{2 Cu _{3 O _{6.54 中声子扩宽和电荷密度波形成的非弹性X射线研究}}}

Inelastic x-ray study of phonon broadening and charge-density wave formation in ortho-Ⅱ-ordered YBa_2Cu_3O_(6.54)

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