Macroscopic quantum coherence in ferrimagnets

Physical Review B - Condensed Matter and Materials Physics

Volumn 56, Issue 2, 1997, Pages 738-746

  Chiolero, Alain ^a   Loss, Daniel ^a  

^a UNIVERSITY OF BASEL   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000834592     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.56.738     Document Type: Article

References (37)

1. For an introduction, see, e.g., A.J. Leggett, in Chance and Matter, edited by J. Souletie, J. Vannimenus, and R. Stora (North-Holland, Amsterdam, 1987), p. 395.
2. J.M. Martinis, M.H. Devoret, and J. Clarke, Phys. Rev. B 35, 4682 (1987).
3. E.M. Chudnovsky and L. Gunther, Phys. Rev. Lett. 60, 661 (1988).
4. See, e.g., Quantum Tunneling of Magnetization, edited by L. Gunther and B. Barbara (Kluwer Academic, Norwell, MA, 1994).
5. D.D. Awschalom, J.F. Smyth, G. Grinstein, D.P. DiVincenzo, and D. Loss, Phys. Rev. Lett. 68, 3092 (1992).
6. M. Enz and R. Schilling, J. Phys. C 19, 1765, L711 (1986).
7. J.L. van Hemmen and S. Sütö, Europhys. Lett. 1, 481 (1986).
8. For a perturbative tunnel splitting calculation, see also I.Ya. Korenblit and E.F. Shender, Sov. Phys. JETP 48, 937 (1978).
9. B. Barbara and E.M. Chudnovsky, Phys. Lett. A 145, 205 (1990).
10. I.V. Krive and O.B. Zaslawski, J. Phys. Condens. Matter 2, 9457 (1990).
11. D. Loss, D.P. DiVincenzo, and G. Grinstein, Phys. Rev. Lett. 69, 3232 (1992).
12. D. Loss, D.P. DiVincenzo, G. Grinstein, D.D. Awschalom, and J.F. Smyth, Physica B 189, 189 (1993).
13. E.M. Chudnovsky, J. Magn. Magn. Mater. 140-144, 1821 (1995).
14. J.-M. Duan and A. Garg, J. Phys. Condens. Matter 7, 2171 (1995).
15. D.D. Awschalom, D.P. DiVincenzo, and J.F. Smyth, Science 258, 414 (1992).
16. S. Gider, D.D. Awschalom, T. Douglas, S. Mann, and M. Chaparala, Science 268, 77 (1995).
17. For a summary of criticisms raised against the ferritin experiment and their reply, see S. Gider, D.D. Awschalom, D.P. DiVincenzo, and D. Loss, Science 272, 424 (1996).
18. D. Gatteschi, A. Caneschi, L. Pardi, and R. Sessoli, Science 265, 1054 (1994).
19. O. Kahn, Molecular Magnetism (VCH, New York, NY, 1993).
20. L. Thomas, F. Lionti, R. Ballou, D. Gatteschi, R. Sessoli, and B. Barbara, Nature (London) 383, 145 (1996).
21. J.R. Friedman, M.P. Sarachik, J. Tejada, and R. Ziolo, Phys. Rev. Lett. 76, 3830 (1996).
22. A.F. Andreev and V.I. Marchenko, Usp. Fiz. Nauk 130, 39 (1980), [Sov. Phys. Usp. 23, 21 (1980)].
23. E. Fradkin, Field Theories of Condensed Matter Systems (Addison-Wesley, Reading, MA, 1991).
24. H.-B. Braun and D. Loss, Phys. Rev. B 53, 3237 (1996).
25. J. von Delft and C.L. Henley, Phys. Rev. Lett. 69, 3236 (1992).
26. J. Kevorkian, Perturbation Methods in Applied Mathematics (Springer-Verlag, Berlin, 1981).
27. G.C. Ford et al., Philos. Trans. R. Soc. London, Ser. B 304, 551 (1984).
28. K.M. Towe and W.F. Bradley, J. Colloid Interface Sci. 24, 384 (1967).
29. F.V. Chukrov, Int. Geol. Rev. 16, 1131(1973).
30. Notice that the structure of ferrihydrite itself is disputed; see, e.g., R.A. Eggleton and R.W. Fitzpatrick, Clays Clay Miner. 38, 335 (1990).
31. S.H. Kilcoyne and R. Cywinski, J. Magn. Magn. Mater. 140-144, 1466 (1995).
32. D.P.E. Dickson et al., J. Magn. Magn. Mater. 125, 345 (1993).
33. V.G. Bar’yakhtar, B.A. Ivanov, and M.V. Chetkin, Sov. Phys. Usp. 28, 563 (1985).
34. E.R. Bauminger and I. Nowik, Hyperfine Interact. 50, 489 (1989).
35. L. Néel, C. R. Acad. Sci. 252, 4075 (1961).
36. S.H. Bell et al., Biochim. Biophys. Acta 787, 227 (1984).
37. J. Tejada and X.X. Zhang, J. Phys. Condens. Matter 6, 263 (1994).