Strong correlation between high-temperature electronic and low-temperature magnetic ordering in La1-xCaxMnO3 continuous phase diagram

Young K. Yoo, Young K. Yoo, Fred Duewer, Fred Duewer, Tomoteru Fukumura, Haitao Yang, Dong Yi, Sheng Liu, Hauyee Chang, Tetsuya Hasegawa, Tetsuya Hasegawa, Masashi Kawasaki, Masashi Kawasaki, Hideomi Koinuma, Hideomi Koinuma, Xiao Dong Xiang

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Optical and microwave impedance and magnetic mapping of continuous phase diagram of thin film La1-xCaxMnO3 was achieved on a single chip. The optical and microwave impedance images obtained by charge-coupled device camera and scanned evanescent microwave probe showed abrupt variations in visible wavelength reflectance and microwave impedance as functions of composition at room temperature. The low-temperature magnetic order probed by scanning superconducting quantum interference device microscope is directly correlated with the room-temperature electrical impedance variation. Most of these variations may arise from remnant electronic orbital ordering persisting to room temperature in these compounds. We also observed a narrow singular stripe in composition with dramatically increased conductivity.

Original languageEnglish
Article number224421
Pages (from-to)2244211-2244215
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number22
Publication statusPublished - 2001
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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