Magnetic and electronic properties of Eu4Sr4Ga16Ge30

[en] Magnetization, static and ac magnetic susceptibility, nuclear forward scattering, and electrical resistivity measurements have been performed on polycrystalline Eu4Sr4Ga16Ge30, a type I clathrate that has divalent strontium and europium ions encapsulated within a Ga-Ge framework. These data are compared with those of type I clathrates Eu8Ga16Ge30 and Eu6Sr2Ga16Ge30. The ferromagnetic ordering of these Eu-containing clathrates is substantially altered by the incorporation of strontium, as compared to Eu8Ga16Ge30. Ferromagnetism, accompanied by a relatively large negative magnetoresistance, is observed below 15 and 20 K in Eu4Sr4Ga16Ge30 and Eu6Sr2Ga16Ge30, respectively. An effective magnetic moment of 7.83 mu(B) per Eu ion is observed above 30 K for Eu4Sr4Ga16Ge30, a moment which is close to the free-ion moment of 7.94 mu(B) per europium(II) ion.

Disciplines :

Physics

Author, co-author :

Woods, G. T.

Marti

Beekman, M.

Hermann, Raphaël ; Université de Liège - ULiège > Département de physique > Département de physique

Grandjean, Fernande ; Université de Liège - ULiège > Département de physique > Département de physique

Keppens, V.

Leupold, O.

Long, Gary J

Nolas, G. S.

Language :

English

Title :

Magnetic and electronic properties of Eu4Sr4Ga16Ge30

Publication date :

2006

Journal title :

Physical Review. B, Condensed Matter and Materials Physics

ISSN :

1098-0121

eISSN :

1550-235X

Publisher :

American Physical Soc, College Pk, United States - Maryland

Volume :

Issue :

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 13 December 2012

Statistics

Number of views

36 (1 by ULiège)

Number of downloads

0 (0 by ULiège)

More statistics

Scopus citations^®

Scopus citations^®
without self-citations

OpenCitations

Bibliography

G. S. Nolas in Chemistry, Physics, and Materials Science of Thermoelectric Materials, Beyond Bismuth Telluride, edited by, M. G. Kanatzidis,,, S. D. Mahanti,, and, T. P. Hogan, (Kluwer Academic/Plenum, 2003), p. 107.
See, for example, G. S. Nolas, G. A. Slack, and S. B. Schujman in Semiconductors and Semimetals, edited by, T. M. Tritt, (Academic Press, 2001), Vol. 29, p. 255.
V. Pacheco, W. Carrillo-Cabrera, V. H. Tran, S. Paschen, and Y. Grin, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.87.099601 87, 099601 (2001);
T. Kawaguchi, K. Tanigaki, and M. Yasukawa, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.87.099602 87, 099602 (2001), and references therein.
J. L. Cohn, G. S. Nolas, V. Fessatidis, T. H. Metcalf, and G. A. Slack, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.82.779 82, 779 (1999).
B. C. Sales, B. C. Chakoumakos, R. Jin, J. R. Thompson, and D. Mandrus, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.63.245113 63, 245113 (2001).
B. C. Chakoumakos, B. C. Sales, and D. G. Mandrus, J. Am. Ceram. Soc. JACTAW 0002-7820 322, 127 (2001).
S. Paschen, W. Carrillo-Cabrera, A. Bentien, V. H. Tran, M. Baenitz, Y. Grin, and F. Steglich, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.64.214404 64, 214404 (2001).
Y. Zhang, P. L. Lee, G. S. Nolas, and A. P. Wilkinson, Appl. Phys. Lett. APPLAB 0003-6951 10.1063/1.1473236 80, 2931 (2002).
V. Pacheco, A. Bentien, W. Carrillo-Cabrera, S. Paschen, F. Steglich, and Yu. Grin, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.71.165205 71, 165205 (2005).
Y. Mudryk, P. Rogl, C. Paul, S. Berger, E. Bauer, G. Hilscher, C. Godart, and H. Noël, J. Phys.: Condens. Matter JCOMEL 0953-8984 10.1088/0953-8984/14/34/318 14, 7991 (2002).
http://www.esrf.fr/exp_facilities/ID18/
A. I. Chumakov and W. Sturhahn, Hyperfine Interact. HYINDN 0304-3843 123/124, 781 (1999).
O. Leupold, A. I. Chumakov, E. E. Alp, W. Sturhahn, and A. Q. R. Baron, Hyperfine Interact. HYINDN 0304-3843 123/124, 611 (1999).
W. Sturhahn, J. Phys.: Condens. Matter JCOMEL 0953-8984 10.1088/0953-8984/16/5/009 16, S497 (2004).
G. J. Long, R. P. Hermann, F. Grandjean, E. E. Alp, W. Sturhahn, C. E. Johnson, D. E. Brown, O. Leupold, and R. Rüffer, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.71.140302 71, 140302 (R) (2005).
C. Kittel, Introduction to Solid State Physics (Wiley, New York, 1971), Chap..
N. W. Ashcroft and N. D. Mermin, Solid State Physics (Thomson, 1976), Chap., p. 699.
A. Bentien, V. Pacheco, S. Paschen, Yu. Grin, and F. Steglich, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.71.165206 71, 165206 (2005).
C. K. Yang, J. Zhao, and J. P. Lu, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.70.073201 70, 073201 (2004).
M. Kataoka, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.63.134435 63, 134435 (2001).
M. Christensen, J. D. Bryan, H. Birkedal, G. D. Stucky, B. Lebech, and B. B. Iversen, Phys. Rev. B PRBMDO 0163-1829 10.1103/PhysRevB.68.174428 68, 174428 (2003).