Charge melting and polaron collapse in colossal magnetoresistive oxides.
Journal Article
·
· Phys. Rev. Lett.
X-ray and neutron scattering measurements directly demonstrate the existence of polarons in the paramagnetic phase of optimally doped colossal magnetoresistive oxides. The polarons exhibit short-range correlations that grow with decreasing temperature, but disappear abruptly at the ferromagnetic transition because of the sudden charge delocalization. The 'melting' of the charge ordering as we cool through T{sub c} occurs with the collapse of the quasistatic polaron scattering, and provides important new insights into the relation of polarons to colossal magnetoresistance.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; NSF; FOR
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 943259
- Report Number(s):
- ANL/MSD/JA-38667
- Journal Information:
- Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: 21 ; Nov. 22, 1999 Vol. 83; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- ENGLISH
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