High magnetic field study of the Tm2Fe17 and Tm2Fe17D3.2 compounds / Isnard O.,Andreev A. V.,Kuz'min M. D.,Skourski Y.,Gorbunov D. I.,Wosnitza J.,Kudrevatykh N. V.,Iwasa A.,Kondo A.,Matsuo A.,Kindo K. // PHYSICAL REVIEW B. - 2013. - V. 88, l. 17.

ISSN/EISSN:

2469-9950 / 2469-9969

Type:

Article

Abstract:

A magnetization study of a Tm2Fe17 single crystal and aligned powder of the deuteride Tm2Fe17D3.2 has been carried out in steady (14 T) and pulsed (60 T and, in one case, up to 74 T) magnetic fields at temperatures between 1.5 and 300 K. Tm2Fe17 is a ferrimagnet with T-C = 295 K and a spontaneous moment of 22 mu(B)/f.u. at T = 4.2 K. Of particular interest are low-temperature magnetization curves along the sixfold crystal axis c, which is an easy direction in Tm2Fe17 and a hard direction in the deuteride. In either case the magnetization increases with magnetic field undulatorily in broad steps whose height is a multiple of the atomic moment of Tm, mu(Tm) = 7 mu(B). In Tm2Fe17, the positions of the steps yield information on the Fe-Tm molecular field, 48 T on the Tm 2d site and 60 T on the Tm 2b site, whereas the crystal field parameter A(66) is found from the widths of the steps: A(66)(b) = -35 Ka(0)(-6) and A(66)(d) = -26 Ka(0)(-6) (here a(0) is the Bohr radius). It also proves possible to estimate the other sixth-order crystal field parameter: A(60) similar to -4 Ka(0)(-6) (on average for both sites). Less information can be extracted from the powder data for the deuteride. Thus, the mean molecular field on Tm in Tm2Fe17D3.2 is found to be 49 T or 9\% less than in the parent binary compound.

Author keywords:

TM-169 MOSSBAUER-SPECTROSCOPY; INTERMETALLIC COMPOUNDS; GD2FE17HX SYSTEM; PHASE-TRANSITION; DIFFRACTION; R2FE17; SERIES; HO; ANISOTROPY; SM2FE17D5

DOI:

10.1103/PhysRevB.88.174406

Web of Science ID:

ISI:000326817900002

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	NOV 7
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	174406
EISSN	2469-9969
Keywords-Plus	TM-169 MOSSBAUER-SPECTROSCOPY; INTERMETALLIC COMPOUNDS; GD2FE17HX SYSTEM; PHASE-TRANSITION; DIFFRACTION; R2FE17; SERIES; HO; ANISOTROPY; SM2FE17D5
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	olivier.isnard@grenoble.cnrs.fr
ResearcherID-Numbers	Gorbunov, Denis/G-7443-2014 Andreev, Alexander/B-6057-2011
Funding-Acknowledgement	Czech Science Foundation {[}204/12/0150]; Czech Academy of Sciences {[}M100101203]; EuroMag-NET program under EU {[}228043]; HLD at HZDR; Program of Czech Research Infrastructures {[}LM2011025]; Charles University {[}SVV-2013-267303, GAUK-703912]
Funding-Text	This work was supported by Czech Science Foundation (grant 204/12/0150), by the Czech Academy of Sciences (Grant No. M100101203) and by the EuroMag-NET program under EU Contract No. 228043. We acknowledge the support of HLD at HZDR, a member of the European Magnetic Field Laboratory (EMFL). The static-field magnetization measurements were performed at the Magnetism and Low-Temperature Laboratories (MLTL, http://mltl.eu) supported within the Program of Czech Research Infrastructures (Project No. LM2011025). DIG also acknowledges Charles University Grants No. SVV-2013-267303 and No. GAUK-703912. M. D. K. is grateful to Joseph Fourier University (Grenoble) for supporting his stay in Grenoble.
Number-of-Cited-References	55
Usage-Count-Last-180-days	5
Usage-Count-Since-2013	35
Journal-ISO	Phys. Rev. B
Doc-Delivery-Number	249YV