1) La descarga del recurso depende de la página de origen
2) Para poder descargar el recurso, es necesario ser usuario registrado en Universia


Opción 1: Descargar recurso

Detalles del recurso

Descripción

Electronic phases with stripe patterns have been intensively investigated for their vital roles in unique properties of correlated electronic materials. How these real-space patterns affect the conductivity and other properties of materials (which are usually described in momentum space) is one of the major challenges of modern condensed matter physics. By studying the electronic structure of La2-2xSr1+2xMn2O7 (x ∼ 0.59) and in combination with earlier scattering measurements, we demonstrate the variation of electronic properties accompanying the melting of so-called bi-stripes in this material. The static bi-stripes can strongly localize the electrons in the insulating phase above Tc ∼ 160 K, while the fraction of mobile electrons grows, coexisting with a significant portion of localized electrons when the static bi-stripes melt below Tc. The presence of localized electrons below Tc suggests that the melting bi-stripes exist as a disordered or fluctuating counterpart. From static to melting, the bi-stripes act as an atomic-scale electronic valve, leading to a “colossal” metal-insulator transition in this material.

Pertenece a

PubMed Central (PMC3 - NLM DTD)  

Autor(es)

Sun, Z. -  Wang, Q. -  Fedorov, A. V. -  Zheng, H. -  Mitchell, J. F. -  Dessau, D. S. - 

Id.: 54970019

Idioma: inglés  - 

Versión: 1.0

Estado: Final

Palabras clavePhysical Sciences - 

Tipo de recurso: Text  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

Requerimientos técnicos:  Browser: Any - 

Fecha de contribución: 20-ene-2012

Contacto:

Localización:

Otros recursos de la mismacolección

  1. Defects in lysosomal maturation facilitate the activation of innate sensors in systemic lupus erythematosus Activation of innate sensors by self-antigen contributes to autoimmunity, although how intracellular...
  2. Sustained eruptions on Enceladus explained by turbulent dissipation in tiger stripes Eruptions on the ice moon Enceladus provide access to materials from Enceladus’ ocean. The mechanism...
  3. Enhanced gene targeting to evaluate Lynch syndrome alterations
  4. The “Atlantis Forest hypothesis” does not explain Atlantic Forest phylogeography
  5. [18F]CFA as a clinically translatable probe for PET imaging of deoxycytidine kinase activity Deoxycytidine kinase (dCK) is required for the activation of multiple nucleoside analog prodrugs use...

Aviso de cookies: Usamos cookies propias y de terceros para mejorar nuestros servicios, para análisis estadístico y para mostrarle publicidad. Si continua navegando consideramos que acepta su uso en los términos establecidos en la Política de cookies.