skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Hyperfine and crystal field interactions in multiferroic HoCrO 3

Authors:
; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1325264
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Journal of Physics. Condensed Matter
Additional Journal Information:
Journal Volume: 28; Journal Issue: 47; Related Information: CHORUS Timestamp: 2017-06-24 18:58:09; Journal ID: ISSN 0953-8984
Publisher:
IOP Publishing
Country of Publication:
United Kingdom
Language:
English

Citation Formats

Kumar, C. M. N., Xiao, Y., Nair, H. S., Voigt, J., Schmitz, B., Chatterji, T., Jalarvo, N. H., and Brückel, Th. Hyperfine and crystal field interactions in multiferroic HoCrO 3. United Kingdom: N. p., 2016. Web. doi:10.1088/0953-8984/28/47/476001.
Kumar, C. M. N., Xiao, Y., Nair, H. S., Voigt, J., Schmitz, B., Chatterji, T., Jalarvo, N. H., & Brückel, Th. Hyperfine and crystal field interactions in multiferroic HoCrO 3. United Kingdom. doi:10.1088/0953-8984/28/47/476001.
Kumar, C. M. N., Xiao, Y., Nair, H. S., Voigt, J., Schmitz, B., Chatterji, T., Jalarvo, N. H., and Brückel, Th. 2016. "Hyperfine and crystal field interactions in multiferroic HoCrO 3". United Kingdom. doi:10.1088/0953-8984/28/47/476001.
@article{osti_1325264,
title = {Hyperfine and crystal field interactions in multiferroic HoCrO 3},
author = {Kumar, C. M. N. and Xiao, Y. and Nair, H. S. and Voigt, J. and Schmitz, B. and Chatterji, T. and Jalarvo, N. H. and Brückel, Th},
abstractNote = {},
doi = {10.1088/0953-8984/28/47/476001},
journal = {Journal of Physics. Condensed Matter},
number = 47,
volume = 28,
place = {United Kingdom},
year = 2016,
month = 9
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1088/0953-8984/28/47/476001

Save / Share:
  • Cited by 11
  • Far-infrared reflection and ellipsometry measurements on multiferroic PrFe 3 ( BO 3 ) 4 and SmFe 3 ( BO 3 ) 4 single crystals were used to investigate the interaction between lattice phonons and electronic excitations associated with 4 f crystal-field transitions. A temperature-dependent interference between two types of excitations was observed in PrFe 3 ( BO 3 ) 4 in which the frequency of 4 f crystal-field electronic excitation of Pr 3 + falls into the TO-LO frequency interval of the optical phonon mode near 50 cm - 1 (1.5 THz). Experimental data were explained on the basis ofmore » a theoretical model of coupled electron-phonon modes. The fitting procedure revealed the value 14.8 cm - 1 for the electron-phonon coupling constant. This rather large value points to an essential role played by the electron-phonon interaction in the physics of multiferroics.« less
  • We report the measurement of Moessbauer hyperfine spectra of TmFe/sub 2/Si/sub 2/ using the 8.4 keV transition in /sup 169/Tm. The detailed temperature dependence of the quadrupole interaction has permitted us to evaluate the crystalline electric fields (CEF) acting on Tm atom. The analysis indicates the ground state of Tm to be a singlet state. However, the hyperfine coupling of the /sup 169/Tm with the excited CEF states generates a second order magnetic hyperfine interaction which has been observed in our experiment. An account of the spin relaxation of the second-order magnetic hyperfine interaction is presented.
  • An analysis has been carried out of the behavior of energy levels of the hyperfine structure of the positronium atom in a crystal field in the presence of an external magnetic field. For isotropic positronium, if the effective masses of the positron and electron are not identical, along with the splitting related to the square of the magnetic field there is also a linear Zeeman effect (for the levels of orthopositronium with m = +- 1). For anisotropic positronium in an axial crystal field the character of the splitting depends on the mutual orientation of the magnetic field and themore » axis of symmetry of the crystal field. The special features of the hyperfine structure of the positronium atom in a crystal field can manifest themselves in experiments that observe the precession of the polarization vector of the positronium in the magnetic field and should lead to an anisotropy in the magnetic quenching of positronium in oriented crystals.« less