Theory of Spin-Space Groups

Details Theory of Spin-Space Groups Theory of Spin-Space Groups

Oct 1966

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1966rspsa.294..343b&link_type=abstract

Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Volume 294, Issue 1438, pp. 343-358

Physics

43

Scientific paper

The symmetry properties of a magnetically ordered crystal are normally described in terms of the magnetic space group. But the dominant interactions, Heisenberg exchange and anisotropy fields, have more symmetry than this in that the spins may be rotated independently of the lattice. The 'spin-space groups' appropriate to this symmetry are defined and described, and methods are given for finding the irreducible representations of their 'groups of k'. The theory is applicable to discussions of the excitation spectra in these systems, especially spin waves and conduction electrons. Compatibility relations between the spin-space group and the magnetic space group are considered-these allow discussion of the modification of the spectra brought about by the smaller interactions which only have the lower symmetry. The groups for antiferromagnetic rutile structures, spinels and garnets are examined in detail, and applied to spin waves. A group for helical spin structures, as found in rare earth metals, is discussed in relation to the energy band structure.

Affiliated with

Also associated with

No associations

Rating

Theory of Spin-Space Groups does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Theory of Spin-Space Groups, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of Spin-Space Groups will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1344031