Zeeman Effect of the Magnetic Excitations in a Diluted Magnetic Semiconductor: A Raman Scattering Study of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Cd</mi></mrow><mrow><mn>1</mn><mo>−</mo><mi mathvariant="normal">x</mi></mrow></msub></mrow></math></span> <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Mn</mi></mrow><mrow><mi mathvariant="normal">x</mi></mrow></msub></mrow></math></span> Te

A. Petrou; D. L. Peterson; S. Venugopalan; R. R. Galazka; A. K. Ramdas; S. Rodriguez

doi:10.1103/PhysRevLett.48.1036

Zeeman Effect of the Magnetic Excitations in a Diluted Magnetic Semiconductor: A Raman Scattering Study of ${Cd}_{1 - x}$ ${Mn}_{x}$ Te

A. Petrou, D. L. Peterson, S. Venugopalan, R. R. Galazka, A. K. Ramdas, and S. Rodriguez

Phys. Rev. Lett. 48, 1036 – Published 12 April 1982

Abstract

The electron paramagnetic transition of a magnetic ion in light scattering is reported. Intense Raman lines are observed corresponding to the $Δ m_{S} = \pm 1$ transitions within the Zeeman multiplet of ${Mn}^{+ +}$ , as well as their combinations with the zone-center longitudinal-optical phonons which interact with band electrons and, in turn, through exchange interaction, with ${Mn}^{+ +}$ . The phase transition to the magnetically ordered low-temperature phase is manifested in the evolution of the paramagnetic transition into a magnon line.

Received 28 December 1981

DOI:https://doi.org/10.1103/PhysRevLett.48.1036

Authors & Affiliations

A. Petrou, D. L. Peterson, S. Venugopalan^*, R. R. Galazka^†, A. K. Ramdas, and S. Rodriguez

Department of Physics, Purdue University, West Lafayette, Indiana 47907

^*Present address: Department of Physics State University of New York, Binghamton, N.Y. 13901.
^†Present address: Institute of Physics, Polish Academy of Sciences, Warsaw, Poland.