scholarly journals Photoemission study of the metal-insulator transition inVO2/TiO2(001): Evidence for strong electron-electron and electron-phonon interaction

2004 ◽  
Vol 69 (16) ◽  
Author(s):  
K. Okazaki ◽  
H. Wadati ◽  
A. Fujimori ◽  
M. Onoda ◽  
Y. Muraoka ◽  
...  
Keyword(s):  
Insulator Transition ◽  
Phonon Interaction ◽  
Metal Insulator Transition ◽  
Strong Electron ◽  
Metal Insulator ◽  
Electron Phonon Interaction ◽  
Photoemission Study

Polaron Crystallization and the Metal–Insulator Transition

1998 ◽  
Vol 12 (29n31) ◽  
pp. 3131-3136 ◽  
Author(s):  
P. Quémerais ◽  
S. Fratini
Keyword(s):  
Physical Mechanism ◽  
Insulator Transition ◽  
Vibrational Modes ◽  
Zero Temperature ◽  
Phonon Coupling ◽  
Metal Insulator Transition ◽  
Strong Electron ◽  
Metal Insulator ◽  
Electron Phonon Coupling ◽  
Polar Materials

The Crystallization of polarons at finite density, due to the long-range Coulomb forces — when no bipolarons can be formed — is discussed close to the metal–insulator transition (MIT). As a function of the density, the melting is examined at zero temperature. By calculating the quantum fluctuations of both the electron and the polarization, we show that at strong electron–phonon coupling the dissociation of the polarons at the MIT is favored, rather than the melting towards a polaron liquid. In this regime, we demonstrate, that an instability of the transverse vibrational modes of the polaron crystal occurs as the density increases. This provides a new physical mechanism for the MIT in polar materials, for which an experimental signature is predicted.

Photoemission study of the metal-insulator transition inNiS2−xSex

1998 ◽  
Vol 58 (15) ◽  
pp. 9611-9614 ◽  
Author(s):  
K. Mamiya ◽  
T. Mizokawa ◽  
A. Fujimori ◽  
T. Miyadai ◽  
N. Chandrasekharan ◽  
...  
Keyword(s):  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Photoemission Study

scholarly journals Angle-resolved photoemission study of the metal-insulator transition in bismuth cobaltates

2007 ◽  
Vol 76 (16) ◽  
Author(s):  
Z. Yusof ◽  
B. O. Wells ◽  
T. Valla ◽  
P. D. Johnson ◽  
A. V. Fedorov ◽  
...  
Keyword(s):  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Photoemission Study

scholarly journals Photoemission study of the metal-insulator transition inCuIr2S4

1997 ◽  
Vol 55 (24) ◽  
pp. R15979-R15982 ◽  
Author(s):  
J. Matsuno ◽  
T. Mizokawa ◽  
A. Fujimori ◽  
D. A. Zatsepin ◽  
V. R. Galakhov ◽  
...  
Keyword(s):  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Photoemission Study
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