Magnetic Structure of RCuIn (R = Nd, Tb, Ho, Er)

• Authors: A. Szytuła , S. Baran , T. Jaworska-Gołąb , B. Penc , A. Zarzycki , N. Stűsser , A. Arulraj , Yu. Tyvanchuk
• Languages of publication: EN

Abstracts

EN

Magnetic and neutron diffraction measurements of RCuIn (R = Nd, Tb, Ho, Er) are reported. The compounds crystallize in the hexagonal ZrNiAl-type structure. The ZrNiAl lattice originates from a distortion of a kagomélattice. The studied compounds are antiferromagnets with the Néel temperature equal to 4.9 K for R = Nd, 14.5 K for R = Tb, 4.5 K for R = Ho and 3.5 K for R = Er. The magnetic ordering is described by the propagation vectorwe k = (1/2, 1/2, k_z) with k_z equal to 0.161(6) for R = Nd, 0.2213(5) for R = Tb, 0.2510(3) for R = Ho and 0 for R = Er. The magnetic structure is noncollinear with magnetic moments in the basal plane for R = Nd, Tb and Ho and collinear with magnetic moments parallel to the c-axis for R = Er. The observed magnetic ordering results from the competition between exchange interactions of the Ruderman-Kittel-Kasuya-Yosida type, the geometrical frustration of the rare-earth magnetic moments and the influence of the crystal electric field. The latter affects the direction of magnetic moments and is responsible for the magnetic crystalline anisotropy.

Keywords

EN

61.12.-q; 71.20.Lp; 75.25.+z; 75.50.Ee

Discipline

• 71.20.Lp: Intermetallic compounds
• 75.50.Ee: Antiferromagnetics

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 4
• Pages: 1185-1192

Dates

published

2008-04

received

2007-06-03

Contributors

author

A. Szytuła

• M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

S. Baran

• M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

T. Jaworska-Gołąb

• M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

B. Penc

• M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

A. Zarzycki

• M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

author

N. Stűsser

• BENSC, Hahn-Meitner Institute, Berlin-Wannsee, Glienicker Str. 100, D-14-109 Berlin, Germany

author

A. Arulraj

• BENSC, Hahn-Meitner Institute, Berlin-Wannsee, Glienicker Str. 100, D-14-109 Berlin, Germany

author

Yu. Tyvanchuk

• Department of Inorganic Chemistry, Ivan Franko National University of Lviv,, Kyryla and Mefodiya 6, UA-79005 Lviv, Ukraine

References

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Identifiers

DOI

10.12693/APhysPolA.113.1185