Stripes and Superconductivity in Cuprates - Is there a Connection

Charge stripes have also been found in a few other transition metal oxides and were first reported in the isostructural hole-doped nickelates, La2.x rxNi04 and La2Ni04. which contain modulated Ni02 sheets. But there is a striking difference between the nickelates and the cuprates in that the stripe phase in the former Is insulating, much less superconducting, unlike in 

CSIR Center of Excellence in Chemistry and Chemistry Physics of Materials Unit Jawaharlal Nehru Center for Advanced Scientific Research Bangalore 560064 (India) 

It is important to note that, over and above the modulations due to any possible stripe order, there are microscopic inhomo- 

ARPES measures the single-particle spectral function A(k,w), within the photoionization weight ctor (w), and gives, on ffequerxy integration the in-plane momentum (k) distribution, function 

CHEMPHYSCHEM 2003, 4, 439-444 www.chemphyschem.org 2003 Wiley-VCH Verlag GmbH Co. KGaA, Weinheim 441 

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