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Journal of Applied Physics -- June 1, 2001 -- Volume 89, Issue 11 pp. 7198-7200

Localized spin flop transition in a ladder structure with nonmagnetic impurities

B. A. Ivanov

Institute of Magnetism, National Academy of Sciences of Ukraine, 03127, Kiev, Ukraine
Taras Shevchenko Kiev University, 03127, Kiev, Ukraine

C. E. Zaspel

Department of Environmental Sciences, University of Montana/Western, Dillon, Montana 59715

A. Yu. Merkolov

Taras Shevchenko Kiev University, 03127, Kiev, Ukraine

A classical two-leg spin ladder with an antiferromagnetic exchange interaction and easy axis anisotropy in an external magnetic field exhibits a spin flop transition. A single nonmagnetic impurity introduced into this system allows for the formation of a metastable localized spin flop state at a field above the bulk spin flop field. This state will be symmetrically pinned to the impurity. Two neighboring impurities on the same leg will also result in the stabilization of a localized state pinned to the impurities, but in this case the state is not centered on the impurities. ©2001 American Institute of Physics.

DOI: 10.1063/1.1356034
PACS: 75.50.Ee, 75.30.Hx, 75.30.Kz, 75.30.Et, 75.30.Gw        Additional Information

References

1. R. W. Wang, D. L. Mills, E. E. Fullerton, J. E. Mattson, and S. D. Bader, Phys. Rev. Lett. 72, 920 (1994). [ISI] [MEDLINE]
   
2. S. Rakhmanova, D. L. Mills, and E. E. Fullerton, Phys. Rev. B 57, 476 (1998). [ISI]
   
3. F. C. Nortemann, R. L. Stamps, A. C. Carrico, and R. E. Camley, Phys. Rev. B 46, 10847 (1992). [ISI]
   
4. N. Papanicolaou, J. Phys.: Condens. Matter 11, 59 (1999). [INSPEC] [ISI]
   
5. J. Karadamoglou and N. Papanicolaou, Phys. Rev. B 60, 9477 (1999). [ISI]
   
6. C. Micheletti, R. B. Griffiths, and J. Yeomans, Phys. Rev. B 59, 6239 (1999). [ISI]
   
7. A. K. Kolezhuk and H. J. Mikeska, Int. J. Mod. Phys. B 12, 2325 (1998). [INSPEC] [ISI]
   
8. J. de Jongh and A. R. Miedema, Adv. Phys. 23, 1 (1974). [INSPEC]
   

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