Schmid, M. and Mannhart, J. and Giessibl, Franz J. (2008) Searching atomic spin contrast on nickel oxide (001) by force microscopy. PHYSICAL REVIEW B, 77 (4): 045402. ISSN 1098-0121,
Full text not available from this repository. (Request a copy)Abstract
The (001) surface of NiO, an antiferromagnet at room temperature, was investigated under ultrahigh vacuum conditions with frequency modulation atomic force microscopy. The antiferromagnetic coupling between ions leads to a spin superstructure on (001) surfaces. Exchange interaction between the probe of a force microscope and the NiO (001) surface should allow us to image spin superstructures in real space. The surface was imaged with three different probing tips: nonmagnetic W tips, ferromagnetic Co tips, and antiferromagnetic NiO tips-and atomic resolution was achieved with all three of them in various distance regimes and in several channels. Atomic resolution is obtained with all tips, but evidence for spin contrast is lacking although oscillation amplitudes in the angstrom regime have been used, where optimal signal-to-noise ratio is expected.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NIO(001) SURFACE; EXCHANGE FORCE; FE FILMS; 1ST-PRINCIPLES; SPECTROSCOPY; NIO(100); TIP; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Giessibl > Group Franz J. Giessibl |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Nov 2020 09:36 |
| Last Modified: | 23 Nov 2020 09:36 |
| URI: | https://pred.uni-regensburg.de/id/eprint/31759 |
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