Phys. Rev. B 54, 3007–3010 (1996)Charge ordering and magnetoresistance in Nd1-xCaxMnO3 due to reduced double exchangeSee Also: Erratum Received 11 April 1996; published in the issue dated 1 August 1996 Structural, transport, and magnetic properties of Nd1-xCaxMnO3 (0≤x≤1) have been studied to probe the consequence of strong lattice distortion and reduced double exchange. Charge ordering has been observed over a large composition range of 0.30≤x≤0.80. For 0.33≤x≤0.40, at low temperatures, a magnetic field induces a first-order antiferromagnetic semiconductor to ferromagnetic metal transition and reduces the resistance by several orders of magnitude. These results illustrate the competition between double exchange and mechanisms that promote charge localization. © 1996 The American Physical Society. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.54.3007
DOI:
10.1103/PhysRevB.54.3007
PACS:
71.30.+h, 71.38.+i, 72.15.Gd, 75.30.Kz
See AlsoErratum: Erratum: Charge ordering and magnetoresistance in Nd1-xCaxMnO3 due to reduced double exchange [Phys. Rev. B 54, 3007 (1996)], Phys. Rev. B 55, 11878 (1997). |
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