Low temperature behavior of magnetic domains observed using a magnetic force microscope
Chung, S. H.
Shinde, S. R.
Ogale, S. B.
Greene, R. L.
Gomez, R. D.
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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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.