About: Strong room-temperature easy-axis anisotropy in Tb2Fe17H3: an exception among R2Fe17 hydrides     Goto   Sponge   NotDistinct   Permalink

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  • 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.
  • 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. (en)
Title
  • Strong room-temperature easy-axis anisotropy in Tb2Fe17H3: an exception among R2Fe17 hydrides
  • Strong room-temperature easy-axis anisotropy in Tb2Fe17H3: an exception among R2Fe17 hydrides (en)
skos:prefLabel
  • Strong room-temperature easy-axis anisotropy in Tb2Fe17H3: an exception among R2Fe17 hydrides
  • Strong room-temperature easy-axis anisotropy in Tb2Fe17H3: an exception among R2Fe17 hydrides (en)
skos:notation
  • RIV/68378271:_____/13:00394517!RIV14-GA0-68378271
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  • I, P(GAP204/12/0150)
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  • 21
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  • RIV/68378271:_____/13:00394517
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  • magnetic anisotropy; ferrimagnetic materials; hydrogenatio (en)
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  • US - Spojené státy americké
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  • [9B210F5FD567]
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  • Physical Review. B
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  • 87
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  • Skourski, Y.
  • Drulis, H.
  • Tereshina, Evgeniya
  • Tereshina, I. S.
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  • 000317158000023
issn
  • 1098-0121
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  • 10.1103/PhysRevB.87.214425
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