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

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 differ...

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Autores principales:	Cojocaru, Sergiu, Citro, R, Marinaro, M
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2008
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/8618f8c9816248ca83e2383b7597ce1c
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spelling	oai:doaj.org-article:8618f8c9816248ca83e2383b7597ce1c2021-11-21T12:06:44ZPossible links between anomalies in the photoemission, optical and phonon spectra of high-Tc cuprates2537-63651810-648Xhttps://doaj.org/article/8618f8c9816248ca83e2383b7597ce1c2008-07-01T00:00:00Zhttps://mjps.nanotech.md/archive/2008/article/3918https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365The 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. Cojocaru, SergiuCitro, RMarinaro, MD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 7, Iss 3, Pp 350-358 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Cojocaru, Sergiu Citro, R Marinaro, M Possible links between anomalies in the photoemission, optical and phonon spectra of high-Tc cuprates
description	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.
format	article
author	Cojocaru, Sergiu Citro, R Marinaro, M
author_facet	Cojocaru, Sergiu Citro, R Marinaro, M
author_sort	Cojocaru, Sergiu
title	Possible links between anomalies in the photoemission, optical and phonon spectra of high-Tc cuprates
title_short	Possible links between anomalies in the photoemission, optical and phonon spectra of high-Tc cuprates
title_full	Possible links between anomalies in the photoemission, optical and phonon spectra of high-Tc cuprates
title_fullStr	Possible links between anomalies in the photoemission, optical and phonon spectra of high-Tc cuprates
title_full_unstemmed	Possible links between anomalies in the photoemission, optical and phonon spectra of high-Tc cuprates
title_sort	possible links between anomalies in the photoemission, optical and phonon spectra of high-tc cuprates
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2008
url	https://doaj.org/article/8618f8c9816248ca83e2383b7597ce1c
work_keys_str_mv	AT cojocarusergiu possiblelinksbetweenanomaliesinthephotoemissionopticalandphononspectraofhightccuprates AT citror possiblelinksbetweenanomaliesinthephotoemissionopticalandphononspectraofhightccuprates AT marinarom possiblelinksbetweenanomaliesinthephotoemissionopticalandphononspectraofhightccuprates
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Possible links between anomalies in the photoemission, optical and phonon spectra of high-Tc cuprates

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