Strong room-temperature easy-axis anisotropy in Tb2Fe17H3: an exception among R2Fe17 hydrides
Result description
The iron-rich intermetallics R2Fe17 (where R is a rare-earth element) proved unamenable to anisotropy control via interstitial doping. There is only one precedent, Sm2Fe17N3-d, where interstitial modification has stabilized an easy-axis anisotropy at all temperatures up to TC. All previous attempts to prepare a usable easy-axis in R2Fe17 hydrides have failed. Now we have succeeded in preparing a high-quality single-phase Tb2Fe17H3 single crystal, which has the required easy-axis anisotropy between 0 K and TC = 560 K. The main mechanism stabilizing the easy-axis anisotropy in hydrides is the same as in other similar compounds by way of boosting the leading crystal field parameter A20. However, the easy-axis anisotropy in Tb2Fe17 hydrides is also assisted by the fourth-order parameter A40.
Keywords
The result's identifiers
Result code in IS VaVaI
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Strong room-temperature easy-axis anisotropy in Tb2Fe17H3: an exception among R2Fe17 hydrides
Original language description
The iron-rich intermetallics R2Fe17 (where R is a rare-earth element) proved unamenable to anisotropy control via interstitial doping. There is only one precedent, Sm2Fe17N3-d, where interstitial modification has stabilized an easy-axis anisotropy at all temperatures up to TC. All previous attempts to prepare a usable easy-axis in R2Fe17 hydrides have failed. Now we have succeeded in preparing a high-quality single-phase Tb2Fe17H3 single crystal, which has the required easy-axis anisotropy between 0 K and TC = 560 K. The main mechanism stabilizing the easy-axis anisotropy in hydrides is the same as in other similar compounds by way of boosting the leading crystal field parameter A20. However, the easy-axis anisotropy in Tb2Fe17 hydrides is also assisted by the fourth-order parameter A40.
Czech name
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Czech description
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Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review. B
ISSN
1098-0121
e-ISSN
—
Volume of the periodical
87
Issue of the periodical within the volume
21
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
- "214425-1"-"214425-5"
UT code for WoS article
000320947800006
EID of the result in the Scopus database
2-s2.0-84879728590
Basic information
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Condensed matter physics (including formerly solid state physics, supercond.)
Year of implementation
2013