@article{ISI:000186993500043,
 abstract = {Manganites of the LA(1-x)Ca(x)MnO(3) family show a variety of new and
poorly understood electronic, magnetic and structural effects. Here we
outline a new approach recently proposed by us, where we argue that due
to strong Jahn-Teller (JT) coupling with phonons the twofold degenerate
e(g) states at the Mn sites dynamically reorganize themselves into
localised, JT polarons l with exponentially small inter-site hopping,
and band-like, nonpolaronic states b, leading to a new 2-band model for
manganites which includes strong Coulomb and Hund's couplings. We also
discuss some results from a dynamical mean-field theory treatment of the
model which explains quantitatively a wide variety of experimental
results, including insulator-metal transitions and CMR, in terms of the
influence of physical conditions on the relative energies and occupation
of the l and b states. We argue that this microscopic coexistence of the
two types of electronic states, and their relative occupation and
spatial correlation is the key to manganite physics.},
 author = {Ramakrishnan, TV and Krishnamurthy, HR and Hassan, SR and Pai, GV},
 issn = {0253-4134},
 journal = {PROCEEDINGS OF THE INDIAN ACADEMY OF SCIENCES-CHEMICAL SCIENCES},
 month = {OCT-DEC},
 note = {International Conference on Emerging Directions in Chemical Sciences,
BANGALORE, INDIA, NOV 25-28, 2003},
 number = {5-6},
 pages = {767-774},
 researcherid-numbers = {Pai, G. Venketeswara/A-1031-2009},
 times-cited = {1},
 title = {Colossal magnetoresistance manganites: A new approach},
 unique-id = {ISI:000186993500043},
 volume = {115},
 year = {2003}
}