Double exchange model and the unique properties of the manganites

2001 ◽  
Vol 171 (2) ◽  
pp. 121 ◽  
Author(s):  
Yurii A. Izyumov ◽  
Yu.N. Skryabin
Keyword(s):  
Double Exchange ◽  
Exchange Model

scholarly journals Cantor spectra for the double-exchange model

2001 ◽  
Vol 63 (21) ◽  
Author(s):  
Atsuo Satou ◽  
Masanori Yamanaka
Keyword(s):  
Double Exchange ◽  
Exchange Model

scholarly journals Magnetic instabilities and phase diagram of the double-exchange model in infinite dimensions

2006 ◽  
Vol 8 (7) ◽  
pp. 116-116 ◽  
Author(s):  
R S Fishman ◽  
F Popescu ◽  
G Alvarez ◽  
J Moreno ◽  
Th Maier ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Double Exchange ◽  
Exchange Model ◽  
Infinite Dimensions

scholarly journals Hund nodal line semimetals: The case of a twisted magnetic phase in the double-exchange model

2019 ◽  
Vol 99 (2) ◽  
Author(s):  
R. Matthias Geilhufe ◽  
Francisco Guinea ◽  
Vladimir Juričić
Keyword(s):  
Magnetic Phase ◽  
Double Exchange ◽  
Nodal Line ◽  
Exchange Model

Phase diagram of the double exchange model

1998 ◽  
Vol 58 (13) ◽  
pp. 8186-8189 ◽  
Author(s):  
L. Sheng ◽  
H. Y. Teng ◽  
C. S. Ting
Keyword(s):  
Phase Diagram ◽  
Double Exchange ◽  
Exchange Model

EXACT WAVEFUNCTION OF THE ONE-DIMENSIONAL DOUBLE-EXCHANGE MODEL WITH ONE ELECTRON

2012 ◽  
Vol 26 (30) ◽  
pp. 1250154 ◽  
Author(s):  
KYOHEI NAKANO ◽  
ROBERT EDER ◽  
YUKINORI OHTA
Keyword(s):  
Single Particle ◽  
Double Exchange ◽  
Exchange Interactions ◽  
Exchange Model ◽  
Particle Spectrum ◽  
Lower Edge ◽  
One Dimensional ◽  
Mobile Electron ◽  
Spin Excitations ◽  
The One

We study the one-dimensional double-exchange model with L localized spins and one mobile electron. We solve the Schrödinger equation analytically and obtain the energies and wavefunctions for all the eigenstates with spin S = (l-1)/2 exactly. As an application, we compute the single-particle Green's function. We show that, for vanishing exchange interactions between localized spins, the single-particle spectrum is entirely incoherent and the lowest band has an infinite band mass, i.e., the single electron is localized due to its interaction with the spin excitations. For nonvanishing exchange interactions between localized spins, the lower edge of the spectrum acquires a dispersion but the spectrum remains incoherent with no well-defined quasiparticle peak.

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