Magnetic Ordering in ErFe_{0.3}Ge_{2} and ErNi_{0.65}Ge_{2} Compounds

• Authors: B. Penc , A. Arulraj , D. Kaczorowski , A. Szytuła , E. Wawrzyńska
• Languages of publication: EN

Abstracts

EN

The magnetic ordering in ErFe_{0.3}Ge_{2} and ErNi_{0.65}Ge_{2} compounds crystallizing in the orthorhombic structure of the CeNiSi_{2}-type has been investigated by neutron diffraction and magnetic measurements. The Er magnetic moments have been found to order antiferromagnetically below 2.5 K in ErFe_{0.3}Ge_{2} and 2.3 K in ErNi_{0.65}Ge_{2}. The magnetic structure of the former compound can be described by the propagation vector k = (0.044(1), 0, 0.384(1)). The Er magnetic moments are aligned along the a-axis and alternate with the sequence ++- in the unit cell. At 1.5 K they are equal to 5.9(1) μ_{B}. In contrast, the magnetic unit cell of ErNi_{0.65}Ge_{2} has been established to be equal to the chemical one. The magnetic moments in this compound are arranged in a collinear manner pointing along the a-axis with the sequence +-+-. The Er moment value measured at 1.5 K is 2.90(8) μ_{B}.

Keywords

EN

71.20.Lp; 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: 2010
• Volume: 117
• Issue: 4
• Pages: 595-598

Dates

published

2010-04

Contributors

author

B. Penc

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

author

A. Arulraj

• BENSC, Hahn-Meitner-Institute, Glienicker Str. 100, 14109 Berlin-Wannsee, Germany

author

D. Kaczorowski

• W. Trzebiatowski Institute of Low Temperatures and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland

author

A. Szytuła

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

author

E. Wawrzyńska

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

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Identifiers

DOI

10.12693/APhysPolA.117.595