Simultaneous Transitions in Cuprate Momentum-Space Topology and Electronic Symmetry Breaking
Simultaneous Transitions in Cuprate Momentum-Space Topology and Electronic Symmetry Breaking
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DOI：
10.1126/science.1248783
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发表时间：
2014-05-09
期刊：
影响因子：
56.9
通讯作者：
Davis, J. C.
中科院分区：
文献类型：
--
作者：
Fujita, K.;Kim, Chung Koo;Davis, J. C.
在欠掺杂的铜氧化物中存在电子对称性破缺以及它随空穴密度p的增加而消失的现象现在已被广泛报道。然而，这种转变与支撑超导性的动量空间（右箭头空间上的（k））电子结构之间的关系尚未建立。在这里，我们可视化的（Q）在右箭头=0（内单位细胞）和（Q）在右箭头不等于0（密度波）破缺对称态，同时与相干。(k)在右箭头-空间拓扑上，对于跨越相图0.06的Bi 2Sr 2CaCu 2 O 8 + δ样品，
The existence of electronic symmetry breaking in the underdoped cuprates and its disappearance with increased hole density p are now widely reported. However, the relation between this transition and the momentum-space ((k) over right arrow -space) electronic structure underpinning the superconductivity has not yet been established. Here, we visualize the (Q) over right arrow =0 (intra-unit-cell) and (Q) over right arrow not equal 0 (density-wave) broken-symmetry states, simultaneously with the coherent. (k) over right arrow -space topology, for Bi2Sr2CaCu2O8+delta samples spanning the phase diagram 0.06