https://doi.org/10.1007/s100510051054
Peculiarities in low temperature properties of doped manganites A1-xBxMnO3
1
National High Magnetic Field Laboratory, Florida State
University, Tallahassee, FL 32310, USA
2
L.D. Landau Institute for Theoretical Physics, Russian Academy
of Sciences, 117334 Moscow, Russia
3
Lawrence Berkeley Laboratory, University of California, Berkeley,
CA 94720, USA
Received:
22
September
1999
Published online: 15 April 2000
The phase diagram and low temperature properties of the doped
manganites A1-xBxMnO3 are discussed for the
concentrations 
. The transition from insulating
antiferromagnetic to metallic ferromagnetic state at 
is treated by means of percolation theory.
The unifying description of insulating and metallic states
is presented. The undoped manganite is a band insulator
consisting of ferromagnetic layers, which are coupled
antiferromagnetically along the c direction with
a low Néel temperature. The metallic phase
can be described by the two-band Fermi liquid picture.
The behavior of conductivity, spin wave excitations, etc.
is analyzed and the comparison with experimental data is
carried out.
PACS: 72.15.Gd – Galvanomagnetic and other magnetotransport effects / 75.30.Ds – Spin waves
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000
