Temperature dependence of the anisotropic electrodynamics in the ladder compounds Sr_(14-x)Ca_xCu_(24)O_(41)

B. Ruzicka; L. Degiorgi; U. Ammerahl; G. Dhalenne; A. Revcolevschi

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Temperature dependence of the anisotropic electrodynamics in the ladder compounds Sr_(14-x)Ca_xCu_(24)O_(41)

机译：梯形化合物Sr_（14-x）Ca_xCu_（24）O_（41）中各向异性电动力学的温度依赖性

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The optical reflectivity as a function of temperature of the title compound for x = 0, 5 and 12 has been measured over a broad spectral range from 4 meV up to 12 eV. Our findings suggest a very anisotropic dynamics of the charge excitation spectrum when measuring along or perpendicular to the ladders. Moreover, a metal-insulator transition develops at low temperatures, leading to a suppression of Drude spectral weight in the far and mid-infrared spectral range. We identify this behaviour as a consequence of the localization effects for small Ca substitution, and of the possible formation of a charge density wave condensate for large Ca substitution.

机译：对于x ＝ 0、5和12，在4meV至12eV的宽光谱范围内已经测量了作为标题化合物的温度的光反射率。我们的发现表明，当沿着或垂直于梯子进行测量时，电荷激发谱的各向异性非常强。此外，在低温下会形成金属-绝缘体转变，从而导致在远红外和中红外光谱范围内抑制Drude光谱权重。我们确定这种行为是由于小Ca替代的局部化效应以及大Ca替代的电荷密度波凝结物可能形成的结果。

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《Zeitschrift fur Physik, B. Condensed Matter》 |1998年第3期|共5页
作者
B. Ruzicka; L. Degiorgi; U. Ammerahl; G. Dhalenne; A. Revcolevschi;
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正文语种 eng
中图分类物理学;
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78.20.-e optical properties of bulk materials and thin films; 4.72.Jt other cuprates;

机译：78.20.-e散装材料和薄膜的光学性能;4.72.Jt其他铜酸盐;

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1. Temperature dependence of the anisotropic electrodynamics in the ladder compounds Sr_(14-x)Ca_xCu_(24)O_(41) [J] . B. Ruzicka, L. Degiorgi, U. Ammerahl, Zeitschrift fur Physik, B. Condensed Matter . 1998,第3期

机译：梯形化合物Sr_（14-x）Ca_xCu_（24）O_（41）中各向异性电动力学的温度依赖性
2. High oxygen pressure single crystal growth of highly Ca-doped spin ladder compound Sr_(14-x)Ca_xCu_(24)O_(41)(x> 12) [J] . Guochu Deng, D. Mohan Radheep, R. Thiyagarajan, Journal of Crystal Growth . 2011,第1期

机译：高度掺杂Ca的自旋梯形化合物Sr_（14-x）Ca_xCu_（24）O_（41）（x> 12）的高氧压单晶生长
3. Structural evolution of one-dimensional spin-ladder compounds Sr_(14-x)Ca_xCu_(24)O_(41) with Ca doping and related evidence of hole redistribution [J] . Guochu Deng, Vladimir Pomjakushin, Vaclav Petricek, Physical review . 2011,第14期

机译：一维自旋阶梯化合物Sr_（14-x）Ca_xCu_（24）O_（41）的结构演化及Ca掺杂及空穴重新分布的相关证据
4. Fabrication of a NiCrAl Pressure Cell and the Application to a Two-Leg Ladder Compound Sr_(2)Ca_(12)Cu_(24)O_(41) [C] . Naoki Fujiwara, Takehiko Matsumoto, Kazuko Koyama-Nakazawa, AIRAPT International Conference on High Pressure Science and Technology . 2007

机译：幼仔压力电池的制备和施用到双腿梯形化合物SR_（2）CA_（12）CU_（24）O_（41）
5. Real-space localization and quantification of hole distribution in chain-ladder Sr3Ca11Cu24O41 superconductor [O] . Matthieu Bugnet, Stefan Löffler, David Hawthorn, 2016

机译：梯形Sr3Ca11Cu24O41超导体中空穴分布的实空间定位和量化
6. Spin gap evolution upon Ca doping in the spin ladder series $Sr_{14-x}Ca_xCu_{24}O_{41}$ by inelastic neutron scattering [O] . Deng, Guochu, Tsyrulin, N., Bourges, P., 2013

机译：旋转梯系列中Ca掺杂时的自旋间隙演化无弹性中子散射的$ sr_ {14-x} Ca_xCu_ {24} O_ {41} $
7. Neutron Scattering Studies of the Chains and Ladders in Sr(sub 14)Cu(sub 24)O(sub 41) and Related Compounds [R] . Matsuda, M. 1997

机译：sr（sub 14）Cu（sub 24）O（sub 41）及相关化合物中链和梯的中子散射研究

Temperature dependence of the anisotropic electrodynamics in the ladder compounds Sr_(14-x)Ca_xCu_(24)O_(41)

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