Dy2−xYxTi2O7: phonon vibration and magnetization with dilution View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2014-01-07

AUTHORS

Hui Liu, You-Ming Zou, Shi-Le Zhang, Ran-Ran Zhang, Chang-Jin Zhang, Yu-Heng Zhang

ABSTRACT

In this paper, the dilution effects of non-magnetic Y ions on spin-ice compound Dy2Ti2O7 by infrared and Raman spectra and magnetization measurements were investigated. An anomalous phonon softening with temperature decreasing is found in both the parent and diluted compounds, and Y doping can relax the softening of phonons except that of the IR mode near 233 cm−1, indicating a strong phonon–phonon coupling in the spin-ice material. The magnetization measurements reveal that the non-magnetic impurities do not severely influence the spin-ice rules in the ground state when the level of dilution is not very high. However, a large amount of dilution enhance the disorder and break the spin-ice state because the collective spin-flip clusters are no longer available. More... »

PAGES

81-88

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s12598-013-0178-y

DOI

http://dx.doi.org/10.1007/s12598-013-0178-y

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https://app.dimensions.ai/details/publication/pub.1015291203


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