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Comments on the 2018 ESC/EACTS Guidelines for Myocardial Revascularization

2018; Elsevier BV; Volume: 72; Issue: 1 Linguagem: Inglês

10.1016/j.rec.2018.11.010

1885-5857

Borja Ibáñez, Víctor Bautista‐Hernández, Fernándo Alfonso, Gemma Berga Congost, Héctor Bueno, Manuel Carnero, Belén Cid-Álvarez, José M. de la Torre Hernández, Juan Antonio Franco Peláez, Soledad Ojeda, Vivencio Barrios, Armando Pérez de Prado, Eduardo Armada, Carlos Escobar, Juan Cosı́n-Sales, Raúl Moreno, José María García‐Acuña, Rosa María Lidón, Esteban López de Sá, Oriol Rodríguez‐Leor, Alessandro Sionís, Fernándo Alfonso, Borja Ibáñez, Fernando Arribas, Gemma Berga Congost, Héctor Bueno, Arturo Evangelista, Ignacio Ferreira‐González, Manuel F. Jiménez‐Navarro, Francisco Marı́n, Leopoldo Pérez de Isla, Antonia Sambola, Rafael Vázquez, Ana Viana‐Tejedor,

Coronary Interventions and Diagnostics

A softening of bending mode and a hardening of stretching mode on cooling are observed in infrared spectra of La0.25Ca0.75MnO3 nanoparticles with particle sizes (D) of 40–1000 nm, indicating part of melting charge ordering in the samples. The particle size variations of the inverse of effective number of carriers neff∗ and optical gap show their maxima around D = 350 nm at T = 6 K and then decrease as D reduces from 350 nm to 40 nm. The signals of the decreasing localization of charge carriers provide the possible evidences for the suppression of charge ordering with the decreasing particle size. These observations are explained based on the model of disordered surface and bulk-like core.