Abstract
In diluted magnetic systems, field induced level crossings can change the magnetic moment of the ground state of spin clusters. At low enough temperatures this will lead to steps in the magnetization vs. field curves, from which a variety of information can be extracted. Using a sensitive magnetometer operating below 50 mK, we have studied: 1) the dominant antiferromagnetic exchange constant between Eu++ ions in IV–VI Diluted Magnetic Semiconductors (DMSs); 2) distant-neighbor exchange constants in II–VI DMSs; 3) crystal field parameters for Co++ ions in CdS and CdSe; 4) the distribution of Jahn-Teller distortions for Cr++ ions in ZnTe; and 5) inequivalent nearest neighbors exchange constants in Cd1−xMnxSe. Selected results and a description of the apparatus are presented.
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References
Y. Shapira, J. Appl. Phys.67, 5090 (1990).
F. Varretet al., Solid State Commun.14, 17 (1974).
C.C. Becerra,et al., Phys. Status Solidi B129, K173 (1985).
Y. Shapiraet al., Phys. Rev. B30, 4021 (1984).
R.L. Aggarwalet al., in the Proc. 17th Intl. Conf. on the Phys. of Semicond., edited by J.D. Chadi and W.A. Harrison, (Springer, New York 1985), p. 419.
S. Foner,et al., Phys. Rev. B39, 11793 (1989).
X. Wang, D. Heiman, S. Foner, and P. Becla, Phys. Rev. B41, 1135 (1990).
M.T. Liu,et al., Phys. Rev. B (in press).
K.L. Taft,et al., J. Am. Chem. Soc.116, 823 (1994).
S. Foner,et al., Solid State Commun.95, 455 (1995).
E. ter Haar,et al., J. Low Temp. Phys.99, 151 (1995); G. Frossati, N.F. Oliveira Jr., US Patent no. 5.189.880 (1993).
A.G. Swanson,et al., Rev. Sci. Instrum.61, 848 (1990).
V. Bindilattiet al., Physica B194–196, 63 (1994).
V. Bindilattiet al., Phys. Rev. B50, 16464 (1994).
S. Isberet al., Phys. Rev. B51, 15211 (1995).
G.H. McCabeet al., Solid State. Commun.95 841 (1995).
J.T. Vallinet al., Phys. Rev. B,9, 2051 (1974).
W. Mac,et al., Phys. Rev. B50, 14144 (1994).
T.M. Pekarek,et al., Phys. Rev. B50, 16914 (1994).
U.W. Pohlet al., J. Chem. Phys.90, 6877 (1989).
B.E. Larsonet al., Phys. Rev. B,33, 1789 (1986).
V. Bindilattiet al., Phys. Rev. B45, 5328 (1992).
B.E. Larsonet al., Phys. Rev. B39, 1747 (1989); B.E. Larson, J. Appl. Phys. 67, 5240 (1990).
Y. Shapira,et al., Solid State Commun.75, 201 (1990).
T.Q. Vuet al., Phys. Rev. B46 11617 (1992).
T.M. Giebultowicz,et al., J. Appl. Phys.67, 5096 (1990).
A. Brunoet al., Phys Rev B38, 9168 (1988).
B.E. Larsonet al., Phys. Rev B37, 4137; (1988).
V. Bindilattiet al., Phys. Rev. B53, 5472 (1996).
E. ter Haaret al., to be published.
A. Maugeret al., Phys. Repts.141, 51 (1986).
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Bindilatti, V., Oliveira, N.F., ter Haar, E. et al. Magnetic interactions in diluted systems from low temperature magnetization steps. Czech J Phys 46 (Suppl 6), 3255–3262 (1996). https://doi.org/10.1007/BF02548138
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DOI: https://doi.org/10.1007/BF02548138