Room temperature ferromagnetism in anatase Ti0.95Cr0.05O2 thin films: Clusters or not?

Nguyen Hoa Hong; Ruyter, Antoine; Prellier, W.; Sakai, Joe
December 2004
Applied Physics Letters;12/20/2004, Vol. 85 Issue 25, p6212
Academic Journal
Laser ablated Cr-doped TiO2 thin films grown on LaAlO3 substrates are single phased anatase and room temperature ferromagnetic. The magnetic moment of Cr-doped TiO2 films is rather large, and it is consistent with the theoretical predictions. Magnetic force microscopy measurements certainly suggested that the strong ferromagnetism at high temperature in Cr-doped TiO2 films is intrinsic, and it must originate from the diluted magnetic matrix but not from any form of clusters.


Related Articles

  • Analysis of in-plane bit structure by magnetic force microscopy. Wadas, A.; Grütter, P.; Güntherodt, H.-J. // Journal of Applied Physics;4/1/1990, Vol. 67 Issue 7, p3462 

    Describes the behavior of the minute tip of the magnetic force microscope (MFM) over longitudinally directed magnetic bits using a quantitative approach. Role of the van der Waals force gradient in constant force gradient measurements; Function of MFM; Reason for the importance of the width of...

  • Interpretation of magnetic force microscopic images (abstract). Kikukawa, Atsushi; Awano, Hiroyuki; Hosaka, Sumio; Honda, Yukio; Imura, Ryo // Journal of Applied Physics;5/15/1994, Vol. 75 Issue 10, p6893 

    Presents an abstract of the study 'Interpretation of Magnetic Force Microscopic Images,' by Atsushi Kikukawa, Hiroyuki Awano, Sumio Hosaka, Yukio Honda and Ryo Imura.

  • An analysis of magnetization patterns measured using a magnetic force scanning tunneling microscope (abstract). Burke, E. R.; Gomez, R. D.; Mayergoyz, I. D. // Journal of Applied Physics;5/15/1994, Vol. 75 Issue 10, p6891 

    Presents an abstract of the study 'An Analysis of Magnetization Patterns Measured Using a Magnetic Force Scanning Tunneling Microscope,' by E.R. Burke, R.D. Gomez and I.D. Mayergoyz.

  • A low-temperature ultrahigh vacuum scanning force microscope with a split-coil magnet. Liebmann, M.; Schwarz, A.; Langkat, S. M.; Wiesendanger, R. // Review of Scientific Instruments;Oct2002, Vol. 73 Issue 10, p3508 

    We present the design of a scanning force microscope, which is optimized for magnetic force microscopy experiments. It can be operated at temperatures down to 5.2 K, in ultrahigh vacuum, and in magnetic fields of up to 5 T. Cooling is provided by a liquid helium bath cryostat, and the magnetic...

  • Magnetic force microscopy of recording media (abstract). Mamin, H. J.; Rugar, D.; Lambert, S. E.; Franco, L. P.; Sanders, I. L.; Yogi, T.; Beaulieu, T. // Journal of Applied Physics;5/1/1990, Vol. 67 Issue 9, p5953 

    Presents an abstract of the study 'Magnetic Force Microscopy of Recording Media,' by H.J. Mamin, D. Rugar, S.E. Lambert, L.P. Franco, I.L. Sanders, T. Yogi, T. Beaulieu.

  • dc magnetic force microscopy imaging of thin-film recording head. Rice, Paul; Moreland, John; Wadas, Andrzej // Journal of Applied Physics;5/15/1994, Vol. 75 Issue 10, p6878 

    Presents a study concerning direct current magnetic force microscopy imaging of thin-film recording head. Experimental procedure; Results of the study; Conclusion.

  • Modeling the behavior of the magnetic force microscope. Bryant, Paul; Schultz, S.; Fredkin, D. R. // Journal of Applied Physics;4/15/1991, Vol. 69 Issue 8, p5877 

    Presents a study which modeled the behavior of the magnetic force microscope under various probe/sample configurations. Assumption; Analysis of the effective magnetic surface charge on the probe; Investigation of a spherical probe with magnetization that can rotate in response to the local field.

  • Scanning magnetic force microscopy on Co/Pt magneto-optical disks. van Kesteren, H. W.; den Boef, A. J.; Zeper, W. B.; Spruit, J. H. M.; Jacobs, B. A. J.; Carcia, P. F. // Journal of Applied Physics;8/15/1991, Vol. 70 Issue 4, p2413 

    Presents a study which obtained high resolution images of domains written on cobalt/platinum magneto-optical disks using scanning magnetic force microscopy. Key advantage of the technique compared to electron microscopy techniques; Influence of the multilayer composition and preparation...

  • Metal-coated carbon nanotube tips for magnetic force microscopy. Zhifeng Deng; Yenilmez, Erhan; Leu, Josh; Hoffman, J. E.; Straver, Eric W. J.; Hongjie Dai; Moler, Kathryn A. // Applied Physics Letters;12/20/2004, Vol. 85 Issue 25, p6263 

    We fabricated cantilevers for magnetic force microscopy with carbon nanotube tips coated with magnetic material. Images of a custom hard drive demonstrated 20 nm lateral resolution, with prospects for further improvements.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics