The de Haas–van Alphen effect and energy-band calculations are used to study angular-dependent extremal areas and effective masses of the Fermi surface of the highly correlated antiferromagnetic material The agreement between experiment and theory is reasonable for the areas measured with the field applied along the (100) axis of the tetragonal structure, but there is disagreement in size for the areas observed with the field applied along the (001) axis where the antiferromagnetic spin alignment is occurring. Detailed comparisons between experiment and theory are given.
- Received 22 November 2000
- Published 19 July 2001
© 2001 The American Physical Society