Archive: 2008 - Moldavian Journal of the Physical Sciences

05 Jul 2008

2008
V. 7
3
(p.350 - 358)

Possible links between anomalies in the photoemission, optical and phonon spectra of high-Tc cuprates

Authors:

Cojocaru, Sergiu; Citro, R; Marinaro, M

Summary:

The impressive number of anomalies discovered in high-Tc cuprates by different experimental probes continued to increase also in the last years, adding more to the complexity of the general picture. An intriguing feature of this picture is that the energy scales of these phenomena are very different, spreading from meV to eV. It might imply that the phenomena are actually unrelated. However, the fundamental concept of strong electron correlations, in which high and low energy scales are closely connected, could account in a natural way for the underlying physics and provide an appropriate framework for its description. In this context, the pioneering works of academician V.A. Moskalenko in the last decades constitute a major contribution to the development of this area of physics and our understanding of the emerging new materials. Being guided by this concept we present arguments for the existence of internal connections between apparently unrelated anomalies reported in photoemission, optical and neutron scattering experiments on high-Tc cuprates: low energy kink, high energy anomaly, oftening of the bond-stretching phonon mode and mid-infrared incoherent absorption peak. Our approach is based on both microscopic and semi-phenomenological models and suggests new kinds of experiments that could be of importance for an even broader class of materials.

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phenomena are very different, spreading from meV to eV. It might imply that the phenomena 
are actually unrelated. However, the fundamental concept of strong electron correlations, in 
which high and low energy scales are closely connected, could account in a natural way for 
the underlying physics and provide an appropriate framework for its description. In this context, the pioneering works of academician V.A. Moskalenko in the last decades constitute a 
major contribution to the development of this area of physics and our understanding of the 
emerging new materials. Being guided by this concept we present arguments for the existence of internal connections between apparently unrelated anomalies reported in photoemission, optical and neutron 

scattering experiments on high-Tc cuprates: low energy kink, high energy anomaly, oftening 
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BibTeX

@article{ibn_3918,
author = {Cojocaru, S.P. and Citro, R. and Marinaro, M.},
title = {Possible links between anomalies in the photoemission, optical and phonon spectra of high-Tc cuprates},
journal = {Moldavian Journal of the Physical Sciences},
year = {2008},
volume = {7 (3)},
pages = {350-358},
month = {Jul},
abstract = {(EN) The impressive number of anomalies discovered in high-Tc  cuprates by different experimental probes continued to increase also in the last years, adding more to the complexity 
of the general picture. An intriguing feature of this picture is that the energy scales of these 
phenomena are very different, spreading from meV to eV. It might imply that the phenomena 
are actually unrelated. However, the fundamental concept of strong electron correlations, in 
which high and low energy scales are closely connected, could account in a natural way for 
the underlying physics and provide an appropriate framework for its description. In this context, the pioneering works of academician V.A. Moskalenko in the last decades constitute a 
major contribution to the development of this area of physics and our understanding of the 
emerging new materials. Being guided by this concept we present arguments for the existence of internal connections between apparently unrelated anomalies reported in photoemission, optical and neutron 

scattering experiments on high-Tc cuprates: low energy kink, high energy anomaly, oftening 
of the bond-stretching phonon mode and mid-infrared incoherent absorption peak. Our approach is based on both microscopic and semi-phenomenological models and suggests new 
kinds of experiments that could be of importance for an even broader class of materials. },
url = {https://ibn.idsi.md/vizualizare_articol/3918},
}

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phenomena are very different, spreading from meV to eV. It might imply that the phenomena 
are actually unrelated. However, the fundamental concept of strong electron correlations, in 
which high and low energy scales are closely connected, could account in a natural way for 
the underlying physics and provide an appropriate framework for its description. In this context, the pioneering works of academician V.A. Moskalenko in the last decades constitute a 
major contribution to the development of this area of physics and our understanding of the 
emerging new materials. Being guided by this concept we present arguments for the existence of internal connections between apparently unrelated anomalies reported in photoemission, optical and neutron 

scattering experiments on high-Tc cuprates: low energy kink, high energy anomaly, oftening 
of the bond-stretching phonon mode and mid-infrared incoherent absorption peak. Our approach is based on both microscopic and semi-phenomenological models and suggests new 
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of the general picture. An intriguing feature of this picture is that the energy scales of these 
phenomena are very different, spreading from meV to eV. It might imply that the phenomena 
are actually unrelated. However, the fundamental concept of strong electron correlations, in 
which high and low energy scales are closely connected, could account in a natural way for 
the underlying physics and provide an appropriate framework for its description. In this context, the pioneering works of academician V.A. Moskalenko in the last decades constitute a 
major contribution to the development of this area of physics and our understanding of the 
emerging new materials. Being guided by this concept we present arguments for the existence of internal connections between apparently unrelated anomalies reported in photoemission, optical and neutron 

scattering experiments on high-Tc cuprates: low energy kink, high energy anomaly, oftening 
of the bond-stretching phonon mode and mid-infrared incoherent absorption peak. Our approach is based on both microscopic and semi-phenomenological models and suggests new 
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“ ... ”

SM ISO690:2012

COJOCARU, Sergiu; CITRO, R; MARINARO, M. Possible links between anomalies in the photoemission, optical and phonon spectra of high-Tc cuprates. In: Moldavian Journal of the Physical Sciences. 2008, nr. 3(7), pp. 350-358. ISSN 1810-648X.