Low temperature behavior of magnetic domains observed using a magnetic force microscope

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2001-06-01

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4. S.H. Chung, M. Dreyer, A. Shinde, S. Ogale, T. Venkatesan, R. Green and R.D. Gomez “Low temperature behavior of magnetic domains observed using magnetic force microscope”, Journal of Applied. Physics 89, 6784-6786 (2001).

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Abstract

A commercial atomic force microscope/magnetic force microscope ~MFM! was modified to cool magnetic samples down to around 100 K under a high vacuum while maintaining its routine imaging functionality. MFM images of a 120 nm thick La0.7Ca0.3MnO3 film on a LaAlO3 substrate at low temperature show the paramagnetic-to-ferromagnetic phase transition. Evolution of magnetic domains and magnetic ripples with decreasing temperature are also observed near the edge of a 20 nm thick patterned Co film on a Si substrate.

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