Understanding Far-Infrared Absorption in the S=1 Antiferromagnetic Chain Compound NENP

Details Understanding Far-Infrared Absorption in the S=1 Antiferromagnetic Chain Compound NENP Understanding Far-Infrared Absorption in the S=1 Antiferromagnetic Chain Compound NENP

1993-09-17

arxiv.org/abs/cond-mat/9309022v1

Physics

Condensed Matter

12 pages, revtex, preprint HU-CMT-93H9A

Scientific paper

10.1103/PhysRevLett.72.912

Infrared transmission measurements on the $S=1$ antiferromagnetic chain compound NENP in applied magnetic fields show a sharp absorption line at the field-shifted Haldane gap. This violates a wave-vector selection rule of the Hamiltonian normally used for NENP, as the gap excitations occur at the Brillouin zone boundary. We argue that the crystal structure admits terms which can explain the absorption lines. In addition, in an applied field, staggered orientations of the g-tensors produce a staggered magnetic field. This can explain the observation of a finite gap at all applied fields.

Affiliated with

Also associated with

No associations

Rating

Understanding Far-Infrared Absorption in the S=1 Antiferromagnetic Chain Compound NENP 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 Understanding Far-Infrared Absorption in the S=1 Antiferromagnetic Chain Compound NENP, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Understanding Far-Infrared Absorption in the S=1 Antiferromagnetic Chain Compound NENP will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-274563