The uniaxial antiferromagnet fef2 : spin configurations,

• Main Author: Perpustakaan UGM, i-lib
• Format: Article NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 1994
• Subjects: Jurnal i-lib UGM
• Online Access: https://repository.ugm.ac.id/26462/; http://i-lib.ugm.ac.id/jurnal/download.php?dataId=9489
• Institution: Universitas Gadjah Mada

ABSTRACT - - We present the first complete theoretital'oVliqueLinei'dince (45c) far infrared reflectivity of the :uniaxialaAtiPgrEPROISW FeF2, together with experimental comparisons, for the case where the crystal c axis is tilted away from the applied.. static field H 7 :c bya general angle 9. These spectra are directly,myerned bythe frequency-dependent magnetic permeability -téri66i'VW-sc3'_ the corresponding experimental technique can beicadirectprO4ft ofF,Ab dynamics of the sample. Zeeman splittings by the applied field at a particular value of 0 are found in both--s 'and-friialarisafiOn spectra. Our theoretical reflectivities are in gzidz-agree.Aea4stiVi the experimental results. In particular, the predicted weak s to p and p to s refections for values of 0 intermediate 90 which indicate the occurrence of rotation.x&-IpolatriStailetrY-Ar-e also verified experimentally. In all cases.thejippreciprocity of the reflectivity is very clearly seen, that is,--the Wir4aliAty changes when H. is reversed. Special cases when tbsiirfPci3LC, lies along H. and transverse to Hoare also considered to givelpowle:te study for the reflectivity.