LOW-TEMPERATURE EXCITON-MAGNON LIGHT-ABSORPTION IN 2-D AFM NH3(CH2)2NH3MNCL4

Authors
EREMENKO VV KACHUR IS PIRYATINSKAYA VG SHAPIRO VV
Citation
Vv. Eremenko et al., LOW-TEMPERATURE EXCITON-MAGNON LIGHT-ABSORPTION IN 2-D AFM NH3(CH2)2NH3MNCL4, Physica. B, Condensed matter, 194, 1994, pp. 191-192
Citations number
2
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
194
Year of publication
1994
Part
1
Pages
191 - 192
Database
ISI
SICI code
0921-4526(1994)194:<191:LELI2A>2.0.ZU;2-Q
Abstract
The shape of exciton-magnon band in light absorption spectra of the qu asi-two-dimensional antiferromagnet NH3(CH2)2NH3MnCl4 has been studied . At low temperatures the peculiarities of band shape which deviate fr om the framework of assumed before two-sublattice model were found. Th ey are related to doubling of the crystal lattice period which inevita bly requires a loss of the inversion operation in the spatial group of the crystal.