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APS » Journals » Phys. Rev. B » Volume 59 » Issue 7
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Phys. Rev. B 59, 4549–4552 (1999)

Electronic and magnetic states in doped LaCoO3

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K. Tsutsui* and J. Inoue
Department of Applied Physics, Nagoya University, Nagoya 464-8603, Japan

S. Maekawa
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan

Received 25 August 1998; published in the issue dated 15 February 1999

The electronic and magnetic states in doped perovskite cobaltites, (La,Sr)CoO3, are studied in the numerically exact diagonalization method on Co2O11 clusters. For realistic parameter values, it is shown that a high spin state and an intermediate spin state coexist in one-hole-doped clusters due to strong p-d mixing. The magnetic states in the doped cobaltites obtained in the calculation explain various experimental results.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.59.4549
DOI:
10.1103/PhysRevB.59.4549
PACS:
71.10.-w, 71.27.+a, 71.30.+h, 75.30.Et

*Present address: Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.

 
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