Journal
PHYSICAL REVIEW B
Volume 72, Issue 21, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.72.212404
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We use neutron scattering to study the spin and charge-orbital ordering (CO-OO) in the nearly half-doped perovskite manganite Pr-0.55(Ca0.8Sr0.2)(0.45)MnO3 (PCSMO). On cooling from room temperature, PCSMO first enters into a CO-OO state below T-CO and then becomes a CE-type long-range ordered antiferromagnet below T-N. At temperatures above T-N but below T-CO (T-N < T < T-CO), the spins in PCSMO form highly anisotropic smectic liquid-crystal-like texture with ferromagnetic (FM) quasi-long-range ordered one-dimensional zigzag chains weakly coupled antiferromagnetically. Such a magnetic smecticlike phase results directly from the spin-orbit interaction and demonstrates the presence of textured electronic soft phases in doped Mott insulators.
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