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  Exploring the complex magnetic phase diagram of Ce2PdGe3: A neutron powder diffraction and µSR study

Bhattacharyya, A., Ritter, C., Adroja, D. T., Coomer, F. C., & Strydom, A. M. (2016). Exploring the complex magnetic phase diagram of Ce2PdGe3: A neutron powder diffraction and µSR study. Physical Review B, 94(1): 014418, pp. 1-7. doi:10.1103/PhysRevB.94.014418.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-2399-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-C488-E
Genre: Journal Article

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 Creators:
Bhattacharyya, A.1, Author
Ritter, C.1, Author
Adroja, D. T.1, Author
Coomer, F. C.1, Author
Strydom, A. M.2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              

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 Abstract: The magnetic state of the tetragonal compound Ce2PdGe3, which crystallizes in the space group P4(2)/mmc, a derivative of the alpha-ThSi2 structure, has been investigated by magnetic susceptibility, heat capacity, muon spin relaxation (mu SR), and neutron diffractionmeasurements. Heat capacity data indicate two separate magnetic phase transitions at T-N1 = 10.7 K and T-N2 = 2.3 K. The presence of bulk long-range magnetic order is confirmed by our mu SR study below 11 K, where a drop of nearly 2/3 in the muon initial asymmetry and a sharp increase in the muon depolarization rate were observed. Neutron powder diffraction reveals that only one out of two Ce sites becomes magnetically ordered with magnetic propagation vector kappa = (0) at T-N1, adopting an antiferromagnetic arrangement of magnetic moments mu(Ce3+) = 1.78(1) mu(B) along the c axis. At T-N2 the second Ce site orders similarly, following the same magnetic propagation vector kappa = (0), showing, however, at the same time a significant ferromagnetic component within the tetragonal basal plane. A second propagation vector, kappa = (1/2,0, 1/2), appears concomitantly at T-N2.

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Language(s): eng - English
 Dates: 2016-07-152016-07-15
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 94 (1) Sequence Number: 014418 Start / End Page: 1 - 7 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008