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@ARTICLE{Stekiel:1024430,
      author       = {Stekiel, Michal and Cermak, Petr and Franz, Christian and
                      Meven, Martin and Legut, Dominik and Simeth, Wolfgang and
                      Hansen, Ursula Bengaard and Fak, Björn and Weber, Stefan
                      and Schönmann, Rudolf and Kumar, Vivek and Nemkovskiy,
                      Kirill and Deng, Hao and Bauer, Andreas and Pfleiderer,
                      Christian and Schneidewind, Astrid},
      title        = {{L}ong-range magnetic order in {C}e{P}d{A}l$_3$ enabled by
                      orthorhombic deformation},
      journal      = {Physical review research},
      volume       = {6},
      number       = {2},
      issn         = {2643-1564},
      address      = {College Park, MD},
      publisher    = {APS},
      reportid     = {FZJ-2024-02173},
      pages        = {023117},
      year         = {2024},
      abstract     = {We investigate the effect of structural deformation on the
                      magnetic properties of orthorhombic CePdAl3 in relation to
                      its tetragonal polymorph. Utilizing x-ray and neutron
                      diffraction, we establish that the crystal structure has the
                      𝐶⁢𝑚⁢𝑐⁢𝑚 space-group symmetry and exhibits
                      pseudotetragonal twinning. According to density functional
                      calculations, the tetragonal-orthorhombic deformation
                      mechanism has its grounds in the relatively small free
                      enthalpy difference between the polymorphs, allowing either
                      phase to be quenched, and fully accounts for the twinned
                      microstructure of the orthorhombic phase. Neutron
                      diffraction measurements show that orthorhombic CePdAl3
                      establishes long-range magnetic order below 𝑇N=5.29⁢(5)
                      K characterized by a collinear, antiferromagnetic
                      arrangement of magnetic moments. Magnetic anisotropies of
                      orthorhombic CePdAl3 arise from strong spin-orbit coupling
                      as evidenced by the crystal-field splitting of the 4⁢𝑓
                      multiplet, fully characterised with neutron spectroscopy. We
                      discuss the potential mechanism of frustration posed by
                      antiferromagnetic interactions between nearest neighbors in
                      the tetragonal phase, which hinders the formation of
                      long-range magnetic order in tetragonal CePdAl3. We propose
                      that orthorhombic deformation releases the frustration and
                      allows for long-range magnetic order.},
      cin          = {JCNS-FRM-II / MLZ / JCNS-4},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3 /
                      I:(DE-Juel1)JCNS-4-20201012},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
                      (POF4-6G4) / 632 - Materials – Quantum, Complex and
                      Functional Materials (POF4-632) / DFG project 323760292 -
                      Mehrkomponentige Elektronische Korrelationen in
                      Nicht-Zentrosymmetrischen f-Elektron-Verbindungen
                      (323760292) / DFG project 403191981 - Emergente
                      Elektrodynamik Topologischer Spintexturen (403191981) / DFG
                      project 390814868 - EXC 2111: Munich Center for Quantum
                      Science and Technology (MCQST) (390814868) / TOPFIT -
                      Topological Spin Solitons for Information Technology
                      (291079) / ExQuiSid - Extreme Quantum Matter in Solids
                      (788031) / DFG project 107745057 - TRR 80: Von
                      elektronischen Korrelationen zur Funktionalität (107745057)
                      / DFG project 492547816 - TRR 360: Eingeschränkte
                      Quantenmaterie (492547816)},
      pid          = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632 /
                      G:(GEPRIS)323760292 / G:(GEPRIS)403191981 /
                      G:(GEPRIS)390814868 / G:(EU-Grant)291079 /
                      G:(EU-Grant)788031 / G:(GEPRIS)107745057 /
                      G:(GEPRIS)492547816},
      experiment   = {EXP:(DE-MLZ)DNS-20140101 / EXP:(DE-MLZ)HEIDI-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001226371100001},
      doi          = {10.1103/PhysRevResearch.6.023117},
      url          = {https://juser.fz-juelich.de/record/1024430},
}