Lattice effects on the charge-ordering transition in R{sub 0.5}Sr{sub 1.5}MnO{sub 4}

Journal Article · Mon Dec 01 04:00:00 EST 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.56.14879· OSTI ID:554358

Moritomo, Y; Nakamura, A ^[1]; Mori, S; Yamamoto, N ^[2]; Ohoyama, K; Ohashi, M ^[3]

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1. Center for Integrated Research in Science and Engineering, Nagoya University, Nagoya 464-01 (Japan)
2. Department of Physics, Tokyo Institute of Technology, Tokyo 152 (Japan)
3. Institute for Materials Research, Tohoku University, Sendai 980-77 (Japan)

Magnetic and transport properties are investigated for single crystals of layered-type{endash}doped manganites R{sub 0.5}Sr{sub 1.5}MnO{sub 4} with systematic variation of the averaged radius r{sub R} of the trivalent rare-earth ions R{sup 3+}. La{sub 0.5}Sr{sub 1.5}MnO{sub 4} (R=La) shows a charge-ordering (CO) transition at T{sub CO}=230 K. With a decrease of the in-plane Mn-O bond length d{sub Mn{minus}O(in)}, T{sub CO} decreases and eventually the transition disappears for R=Nd. Such a remarkable lattice effect on the CO transition is in sharp contrast to the negligible lattice effect in the isostructural layered nickelates. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 554358
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 23 Vol. 56; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BOND LENGTHS
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
JAHN-TELLER EFFECT
LANTHANUM OXIDES
LATTICE PARAMETERS
MAGNETIC SUSCEPTIBILITY
MAGNETORESISTANCE
MANGANESE OXIDES
MONOCRYSTALS
PEROVSKITES
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
X-RAY DIFFRACTION