P-wave Pairing and Colossal Magnetoresistance in Manganese Oxides

Details P-wave Pairing and Colossal Magnetoresistance in Manganese Oxides P-wave Pairing and Colossal Magnetoresistance in Manganese Oxides

1998-08-25

arxiv.org/abs/cond-mat/9808275v1

Mod. Phys. Lett. B 12, 507 (1998)

Physics

Condensed Matter

Materials Science

LaTex, 14 pages, For more information, please send me an e-mail. e-mail adrress : yjkim@fen.bilkent.edu.tr

Scientific paper

10.1142/S0217984998000615

We point out that the existing experimental data of most manganese oxides show the {\sl frustrated} p-wave superconducting condensation in the ferromagnetic phase in the sense that the superconducting coherence is not long enough to cover the whole system. The superconducting state is similar to the $A_{1}$ state in superfluid He-3. The sharp drop of resistivity, the steep jump of specific heat, and the gap opening in tunneling are well understood in terms of the p-wave pairing. In addition, colossal magnetoresistance (CMR) is naturally explained by the superconducting fluctuations with increasing magnetic fields. The finite resistivity may be due to some magnetic inhomogeneities. This study leads to the possibility of room temperature superconductivity.

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