Abstract
Advances in materials growth and characterization have, over the past ten years, made possible the investigation of basic physical processes in new “artificial” materials. These materials are artificial in the sense that the geometry and composition are controlled during growth on micrometer and nanometer length scales. This results in macroscopic behaviour that can be dramatically different from that of a material in its bulk form. Magnetic order and reversal processes, which have been extensively studied since the turn of the century, are now being re-examined for nanostructured materials.
The results presented here for the different magnetization configurations observed in submicron magnetic dots, rings and wires exemplify current state-of-the-art growth, lithography and imaging technologies. Using these geometries the potential for precise control of micromagnetic behaviour in patterned materials by control of shape and size is demonstrated. The boundaries between the different ground state configurations have been established experimentally as a function of the lateral width and height. Furthermore, metastable configurations can be induced following specific magnetization histories.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
P. Grünberg, R. Schreiber, Y. Pang, M. Brodsky and H. Sowers, Phys. Rev. Lett. 57, 2442 (1986).
K. Ounadjela, D. Muller, A. Dinia, A. Arbaoui, P. Panissod, and G. Suran, Phys. Rev. B 45, 7768 (1992).
P. J. H. Bloemen, H. W. van Kerstern, H. J. M. Swagten, and W. J. M. de Jonge, Phys. Rev. B 50, 13505 (1994).
P. Bruno and C. Chappert, Phys. Rev. Lett. 67, 1602 (1991).
S. S. P. Parkin, R. Bhadra, and K. P. Roche, Phys. Rev. Lett. 66, 2152 (1991).
P. Bruno, Phys. Rev. B 52, 411 (1995).
P. Carcia, A. Meinhaldt, and A. Suna, Appl. Phys. Lett. 47, 178 (1985).
Z. Q. Qiu, J. Pearson, and S. D. Bader, Phys. Rev. Lett. 70, 1006 (1993).
A. Berger and H. Hopster, Phys. Rev. Lett. 76, 519 (1996).
M. N. Baibich, J. M. Broto, A. Fert, Nguyen Van Dau, F. Petro., P. Etienne, G. Creuzet, A. Friederich, and J. Chazelas, Phys. Rev. Lett. 61, 2472 (1988).
For a review on GMR, see A. Barthelemy, A. Fert, F. Petro., “Giant Magnetoresistance in Magnetic Multilayers”, Handbook of Magnetic Materials, Vol. 12, Edited by K. Buschow, 1999, Elsevier Science.
P. Bruno in “Synchrotron Radiation and Magnetism” edited by E. Beaurepaire, B. Carrière, and J.-P. Kappler, Les Editions de Physique, Les Ulis (1997).
W. Geerts, Y. Suzuki, T. Katayama, K. Tanaka, K. Ando, and S. Yoshida, Phys. Rev. B 50, 12581 (1994).
K. Ounadjela and R. L. Stamps, “Mesoscopic Magnetism in Metals” in the Handbook of Nanostructured Materials and Nanotechnology, Vol. 2: Spectroscopy and Theory, p. 429, Editor Hari Singh Nalwa, Academic Press (1999).
M. A. Kastner, Rev. Mod. Phys., 64, 849 (1992)
M. A. Kastner, Physics Today, 24(1993).
M. Johnson, “Magnetoelectronic memories last and last...”, IEEE Spectrum, 33, (February 2000).
J. Zhu and G. A. Prinz, “VMRAM memory holds both promise and challenge”, Data Storage, 40, (September 2000).
G.A. Prinz and K. Hathaway, “Magnetoelectronics”, Physics Today, Vol. 48, 24 (1995).
G. A. Gibson and S. Schultz, J. Appl. Phys. 73, 4516 (1993).
A. D. Kent, S. van Molnar, S. Gider, D. D. Awschalom, J. Appl. Phys. 76, 6656 (1994).
S. Manalis, K. Babcock, J. Massie, V. Elings, M. Dugas, Appl. Phys. Lett. 66, 2585 (1995).
S. Okazaki, “Lithography for VLSI”, Proc. SPIE 2440 (1995).
D. L. Spears and H. I. Smith, Solid State Technol. 12, 21 (1972).
G. Simon, A. M. Haghiri-Gosnet, J. Bourneix, D. Decanini, Y. Chen, F. Rousseaux, H. Launois, and B. Vidal, J. Vac. Sci. Technol. B 15, 2489 (1997).
For a review on different lithography techniques see: Y. Chen and A. Pepin, “Nanofabrication: Conventional and non-conventional methods”, Electrophoresis, to appear in January 2001.
M. Hehn, K. Ounadjela, J.-P. Bucher, F. Rousseaux, D. Decanini, B. Bartenlian, and C. Chappert, Science 272, 1782 (1996).
S. Chou, IEEE Trans. Mag., 85, 664 (1997).
K. Hong and N. Giordano, J. Phys.: Condens. Matter 10, L401 (1998).
U. Ruediger, J. Yu, S. Zhang, A. Kent, and S. S. P. Parkin, Phys. Rev. Lett. 80, 5639 (1998).
U. Ebels, A. Radulescu, Y. Henry, L. Piraux, and K. Ounadjela, Phys. Rev. Lett. 84, 983(2000).
M. Viret, Y. Samson, P. Warin, A. Marty, F. Ott, E. Sondergard, O. Klein, and C. Fermon, Phys. Rev. Lett. 85, 3962 (2000).
W. Wernsdorfer, K. Hasselbach, A. Suplice, A. Benoit, J.-E. Wergrowe, L. Thomas, B. Barbara, and D. Mailly, Phys. Rev. B 53, 3341 (1996).
W. Wernsdorfer, B. Doudin, D. Mailly, K. Hasselbach, A. Benoit, J. Meier, J.-Ph. Ansermet, and B. Barbara, Phys. Rev. Lett. 77, 1873(1996).
W. Wernsdorfer, K. Hasselbach, B. Barbara, L. Thomas, D. Mailly, and G. Suran, J. Magn. Magn. Mater. 145, 33–39 (1995).
K. Ounadjela, M. Hehn and R. Ferré, “Domain confinement in mesoscopic eptitaxial cobalt patches”, in “Magnetic hysteresis in novel magnetic materials”, edited by G. Hadjipanayis, Kluwer Academic Publishers, 485 (1997).
A. Hubert and R. Schäfer, “Magnetic domains”, Springer, Berlin, (1998).
R. D. Gomez, T. V. Luu, A. O. Pak, K. J. Kirk, and J. N. Chapman, J. Appl. Phys. 85, 6163(1999).
I. L. Prejbeanu, L. D. Buda, U. Ebels, M. Viret, C. Fermon, and K. Ounadjela, IEEE Trans. Magn., June (2001).
F. Rousseaux, D. Decanini, F. Carcenac, E. Cambril, M.F. Ravet, C. Chappert, N. Bardou, B. Bartenlian, and P. Veillet, J. Vac. Sci. Technol. B 13, 2787 (1995).
L. Piraux, S. Dubois, E. Ferain, R. Legras, K. Ounadjela, J.-M. George, J.-L. Maurice, and A. Fert, J. Magn. Magn. Mater. 165, 352 (1997).
E. Ferain and R. Legras, Nucl. Instrum. Methods B 131, 97 (1997) and references therein.
J.-L. Maurice, D. Imhoff, P. Etienne, O. Durand, S. Dubois, L. Piraux, J.-M. George, P. Galtier, and A. Fert, J. Magn. Magn. Mater. 184, 1 (1998).
K. L. Babcock, V. B. Elings, J. Shi, D. D. Awschalom, and M. Dugas, Appl. Phys. Lett. 69, 705 (1996).
R. Wiesendanger “Scanning Probe microscopy and spectroscopy: methods and applications”, Cambridge University Press, 1995.
J. J. Saentz, N. Garcia, P. Grutter, E. Meyer, H. Heizelmann, R. Wiesendanger, L. Rosenthaler, H. R. Hidber, and H. J. Güntherodt, J. Vac. Sci. Technol. A6, 279 (1988).
Y. Martin, C. C. Williams, and H.K. Wickramasinghe, J. Appl. Phys. 61, 4723 (1987).
D. Rugar, H. J. Mamin, P. Guethner, S. E. Lambert, J. E. Stern, J. McFadyen, and T. Yogi, J. Appl. Phys 68, 1169 (1990)
H. J. Hug, B. Stiefel, P. J. A. van Schendel, A. Moser, R. Hofer, S. Martin, H.-J. Güntherodt, S. Porthun, L. Abelmann, J. C. Lodder, G. Bochi, and R. C. O’Handley, J. Appl. Phys. 83, 5609 (1998).
R. Proksch, G. D. Skidmore, E. D. Dahlberg, S. Foss, J. J. Schmidt, C. Merton, B. Walsh, and M. Dugas, Appl. Phys. Lett. 69, 2599 (1996).
S. Porthun, L. Abelmann, C. Lodder, J. Magn. Magn. Mater. 182, 238 (1998).
L. D. Landau and E. Lifshitz, Phys. Z. Sowjetunion 8, 153(1935).
T. J. Gilbert, Phys. Rev. 100, 1243(1955).
A. J. Newell, W. Williams, and D. J. Dunlop, J. Geophys. Res. 98, 9551 (1993).
Y. Nakatani, N. Uesaka, and N. Hayashi, J. Appl. Phys. 28, 2485 (1989).
P. Weiss, J. de Phys. Rad. 6, 661 (1907).
For a review on magnetic bubbles in oxides see: A. P. Malozemo. and J. C. Slonczewski, “Magnetic Domain Walls in Bubble Materials”, Academic Press, New York, (1979).
C. Kittel, Phys. Rev. 70, 965 (1946).
C. Kooy and U. Enz, Philips Res. Rep. 15, 7 (1960).
S. Chikazumi, “Physics of Ferromagnetism”, chapter 17, Oxford University Press, 1997.
D. Craik, “Magnetism principles and applications”, chapter 4.1, Wiley 1995.
A. H. Bobeck and E. Della Torre, “Magnetic Bubbles”, North Holland, Amsterdam (1975).
A. H. Eschenfelder, “Magnetic Bubble Technology”, Springer, Berlin, Heidelberg, New York (1981).
M. Hehn, S. Padovani, K. Ounadjela, and J.-P. Bucher, Phys. Rev. B. 54, 3428 (1996).
U. Ebels, L. Buda, P. E. Wigen, and K. Ounadjela, Chapter 6 in “Spin Dynamics in Confined Magnetic Structures”, edited by B. Hillebrands and K. Ounadjela, Springer, Spring 2001.
V. Gehanno, A. Marty, B. Gilles, and Y. Samson, Phys. Rev. B 55, 12552 (1997); V. Gehanno, Y. Samson, A. Marty, B. Gilles, and A. Chamberod, J. Magn. Magn. Mater. 172, 26 (1997).
A. Asenjo, J. M. Garcia, D. Garcia, A. Hernando, M. Vazquez, P. A. Caro, D. Ravelosona, A. Cebollada, and F. Briones, J. Magn. Magn. Mater. 196, 23(1999).
L. Folks, U. Ebels, R. Sooryakumar, D. Weller, and R. F. C. Farrow, J. Magn. Soc. Jpn. 23 No S1, 85 (1999).
R. Allenspach and M. Stampanoni, in “Magnetic Surfaces, Thin Films and Multilayers”, edited by S. S. P. Parkin et al., MRS Symposia Proceedings no. 231, p.17, Material Research Society Pittsburg (1992).
This is illustrated for the case of eptiaxial Fe films in: E. Gu, E. Ahmad, S. J. Gray, C. Daboo, J. A. C. Bland, L. M. Brown, M. Rührig, A. J. McGibbon, and J. N. Chapman, Phys. Rev. Lett. 78, 1158 (1997).
M. Demand, M. Hehn, K. Ounadjela, R. L. Stamps, E. Cambril, A. Cornette, and F. Rousseaux, J. Appl. Phys. 87, 5111 (2000).
T. Shinjo, T. Okuna, R. Hassdorf, K. Shigeto, and T. Ono, Science 289, 930 (2000).
M. Schneider, H. Hoffmann, and J. Zweck, Appl. Phys. Lett. 77, 2909 (2000).
R. P. Cowburn, J. Phys. D 33, R1 (2000).
W. F. Brown, Jr., J. Appl. Phys. 39, 993(1968).
M. Hehn, PhD thesis, University Louis Pasteur, Strasbourg (1997).
M. Hehn, R. Ferré, K. Ounadjela, J.-P. Bucher, and F. Rousseaux, J. Magn. Magn. Mater. 165, 5 (1997).
R. Ferré, M. Hehn, and K. Ounadjela, J. Magn. Magn. Mater. 165, 9 (1997).
R. P. Cowburn, A. O. Adeyeye, and M. E. Welland, Phys. Rev. Lett. 81, 5414 (1998).
R. P. Cowburn, D. K. Koltsov, A. O. Adeyeye, M. E. Welland, and D. M. Tricker, Phys. Rev. Lett. 83, 1042 (1999).
M. Demand, PhD thesis, University Louis Pasteur, Strasbourg (1998).
J. Raabe, R. Pulwey, R. Sattler, T. Zweck, and D. Weiss, J. Appl. Phys. 88, 4437 (2000).
T. Pokhil, D. Song, and J. Nowak, J. Appl. Phys. 87, 6319 (2000).
A. Fernadez and C. J. Cerjan, J. Appl. Phys. 87, 1395 (2000).
A. Fernandez, M. R. Gibbsons, M. A. Wall, and C. J. Cerjan, J. Magn. Magn. Mater. 190, 71 (1998).
E. Girgis, J. Schelten, J. Shi, J. Janeski, S. Tehrani, and H. Goronkin, Appl. Phys. Lett. 76, 3780 (2000).
M. Kleiber, F. Kümmerlein, M. Löhndorf, A. Wadas, D. Weiss, and R. Wiesendanger, Phys. Rev. B 58, 5563(1998).
E. C. Stoner and E. P. Wohlfarth, Philos. Trans. London, Ser. A 240, 599 (1948); L. Néel, Acad. Sci. Paris, 224, 1550 (1947).
These experiments have been performed by our group in collaboration with M. Natali and Y. Chen, from L2M Bagneux.
L. D. Buda, I. L. Prejbeanu, M. Demand, U. Ebels, and K. Ounadjela, IEEE Trans. Magn., June (2001).
J. Miltat, “Applied Magnetism”, NATO ASI Series, edited by R. Gerber, C. D. Wright, G. Asti, Kluwer Dordrecht, 221 (1994).
M. E. Schabes and H. N. Bertram, J. Appl. Phys. 64, 1347 (1988).
R. P. Cowburn and M. E. Welland, Phys. Rev. B 58, 9217 (1998).
Y. Zheng and J. Zhu, J. Appl. Phys. 81, 5471 (1997).
K. J. Kirk, J. N. Chapman, and C. D. W. Wilkinson, Appl. Phys. Lett. 71, 539 (1997).
J. Shi et al., IEEE Trans. Magn. 34, 997 (1998).
J. Gadbois, J.-G. Zhu, and W. Vavra, A. Hurst, IEEE Trans. Magn. 34, 1066 (1998).
M. Rührig, B. Khamesehpour, K. J. Kirk, J. N. Chapman, P. Aitchison, S. McVitie, and C. D. W. Wilkinson, IEEE Trans. Magn. 32, 4452 (1996).
J.G. Zhu, Y. Zheng, and G. A. Prinz, J. Appl. Phys. 87, 6668 (2000).
S. P. Li, A. Peyrade, M. Natali, A. Lebib, Y. Chen, U. Ebels, L.D. Buda, and K. Ounadjela, Phys. Rev. Lett. 86, (2001).
M. Ledermann, R. O’Barr, and S. Schultz, IEEE Trasn. Magn. 31 3793 (1997); R. O’Barr and S. Schultz, J. Appl. Phys. 81, 5458 (1997).
R. Ferre, K. Ounadjela, J. M. George, L. Piraux, and S. Dubois, Phys. Rev. B 56, 14066 (1997).
J.-E. Wegrowe, D. Kelly, A. Franck, S. E. Gilbert, and J.-Ph. Ansermet, Phys. Rev. Lett. 82, 3681 (1999).
I. L. Prejbeanu, L. D. Buda, U. Ebels, and K. Ounadjela, Appl. Phys. Lett. 77, 3066 (2000).
A. Hubert, IEEE Trans. Magn. 21, 1604 (1985).
A. Aharoni, “Introduction to the theory of ferromagnetism”, Clarendon Press, Oxford, (1996).
D. Hinzke and U. Nowak, J. Magn. Magn. Mater. 221, 365 (2000).
R. C. O’Handley, “Modern Magnetic Materials, Principles and Applications”, Chapter 9.2, Wiley, New York, (2000).
J. F. Gregg, W. Allen, K. Ounadjela, M. Viret, M. Hehn, S. M. Thomson, and J. M. D. Coey, Phys. Rev. Lett 77, 1580 (1996)
M. Viret, D. Vignoles, D. Cole, J. M. D. Coey, W. Allen, D. S. Daniel, and J. F. Gregg, Phys. Rev. B 53, 8464 (1996).
D. Ravelosona, A. Cebollada, F. Briones, C. Diaz-Paniagua, M. A. Hidalgo, and F. Batallan, Phys. Rev. B, 59, 4322 (1999).
A. D. Kent, U. Ruediger, J. Yu, L. Thomas, and S. S. P. Parkin, J. Appl. Phys. 85, 5243(1999).
M. Viret, Y. Samson, P. Warin, A. Marty, F. Ott, E. Sondergard, O. Klein, and C. Fermon, Phys. Rev. Lett. 85, 3962 (2000).
P. M. Levy and S. Zhang, Phys. Rev. Lett. 79, 5110 (1997).
T. R. McGuire and R. I. Potter, IEEE Trans. Magn. 11, 1018 (1975).
F. C. Schwerer and J. Silcox, Phys. Rev. Lett 20, 101 (1968).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2001 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Ounadjela, K., Prejbeanu, I.L., Buda, L.D., Ebels, U., Hehn, M. (2001). Observation of Micromagnetic Configurations in Mesoscopic Magnetic Elements. In: Ziese, M., Thornton, M.J. (eds) Spin Electronics. Lecture Notes in Physics, vol 569. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45258-3_15
Download citation
DOI: https://doi.org/10.1007/3-540-45258-3_15
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-41804-7
Online ISBN: 978-3-540-45258-4
eBook Packages: Springer Book Archive