This title appears in the Scientific Report :
2000
Magnetic structure of DyCu2 in the virgin and in the converted state
Magnetic structure of DyCu2 in the virgin and in the converted state
The orthorhombic intermetallic compound DyCu2 shows below T-N = 27 K a complex magnetic-phase diagram due to RKKY interaction in combination with a strong crystal field anisotropy. In the easy a-direction the low-field antiferromagnetic structures AF1 (commensurate) and AF2 (incommensurate sinusoida...
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Personal Name(s): | Reif, T. |
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Doerr, M. / Loewenhaupt, M. / Rotter, M. / Svoboda, P. / Welzel, S. | |
Contributing Institute: |
Institut für Festkörperforschung; IFF |
Published in: | Physica / A, 276/278 (2000) S. 600 - 601 |
Imprint: |
Amsterdam
North Holland Publ. Co.
2000
|
Physical Description: |
600 - 601 |
Document Type: |
Journal Article |
Research Program: |
Methodenentwicklung für Synchrotron- und Neutronenstrahlung |
Series Title: |
Physica A
276/278 |
Subject (ZB): | |
Publikationsportal JuSER |
The orthorhombic intermetallic compound DyCu2 shows below T-N = 27 K a complex magnetic-phase diagram due to RKKY interaction in combination with a strong crystal field anisotropy. In the easy a-direction the low-field antiferromagnetic structures AF1 (commensurate) and AF2 (incommensurate sinusoidal modulated) were determined with wave vectors tau = (2/3 10) and tau* = (0.6510), respectively. In an external magnetic field parallel to a with 1.6 T < mu(0)H < 2.0 T a phase F1 exists with the same tau = (2/3 10) as AF1 but with the higher harmonic 2 tau instead of 3 tau in AF1 which corresponds to a ferromagnetic modulation. In strong magnetic fields parallel to the c-direction DyCu2 undergoes a conversion of the easy axis from a- into c-direction. This conversion remains stable after switching off the field., After the conversion the magnetic structures in fields parallel to c are similar to those measured in the virgin state in fields parallel to a. (C) 2000 Elsevier Science B.V. All rights reserved. |