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@ARTICLE{Zhou:1034688,
      author       = {Zhou, Yishui and Lee, Min-Kai and Hammouda, Sabreen and
                      Devi, Sheetal and Yano, Shin-Ichiro and Sibille, Romain and
                      Zaharko, Oksana and Schmidt, Wolfgang and Schmalzl, Karin
                      and Beauvois, Ketty and Ressouche, Eric and Chang, Po-Chun
                      and Huang, Chun-Hao and Chang, Lieh-Jeng and Brückel,
                      Thomas and Su, Yixi},
      title        = {{G}round-state magnetic structures of topological kagome
                      metals {R} {V} 6 {S}n 6 ( {R} = {T}b , {D}y , {H}o , {E}r )},
      journal      = {Physical review research},
      volume       = {6},
      number       = {4},
      issn         = {2643-1564},
      address      = {College Park, MD},
      publisher    = {APS},
      reportid     = {FZJ-2024-07445},
      pages        = {043291},
      year         = {2024},
      abstract     = {Magnetic kagome metals have attracted tremendous research
                      interests recently, because they represent an ideal
                      playground for exploring the fascinating interplay between
                      their intrinsically inherited topologically nontrivial
                      electron band structures, magnetism and electronic
                      correlation effects, and the resultant novel
                      electronic/magnetic states and emergent excitations. In this
                      work, we report a comprehensive single-crystal neutron
                      diffraction investigation of the ground-state magnetic
                      structures of the recently discovered V-based topological
                      kagome metals 𝑅⁢V6⁢Sn6 (R = Tb, Dy, Ho, Er).
                      Furthermore, the sample synthesis details and our systematic
                      studies of crystal structure, low-temperature magnetic and
                      thermodynamic properties of these compounds via various
                      in-house characterization techniques are also reported. Our
                      single-crystal neutron diffraction measurements confirm that
                      the long-range magnetic order forms below 4.3 K for 𝑅=Tb,
                      3.0 K for 𝑅=Dy, 2.4 K for 𝑅=Ho, and 0.6 K for 𝑅=Er,
                      respectively. The ground-state magnetic structures of the
                      studied compounds are comprehensively determined via the
                      magnetic crystallography approaches. It can be revealed that
                      𝑅⁢V6⁢Sn6 (𝑅 = Tb, Dy, Ho) have a collinear
                      ferromagnetic order in the ground state, with the ordered
                      magnetic moment aligned along the 𝑐 axis for 𝑅 = Tb,
                      Ho, while approximately 20⁢∘ tilted off from the 𝑐
                      axis for 𝑅 = Dy. In contrast, ErV6⁢Sn6 shows an A-type
                      antiferromagnetic structure with a magnetic propagation
                      vector k = (0, 0, 0.5), and with the ordered magnetic moment
                      aligned in the 𝑎⁢𝑏 plane. The ordered magnetic
                      moments are determined as 9.4(2) µ𝐵, 6.6(2) µ𝐵,
                      6.4(2) µ𝐵, and 6.1(2) µ𝐵 for 𝑅 = Tb, Dy, Ho, and
                      Er, respectively. A comparison of the low-temperature
                      magnetic structures for both the extensively investigated
                      topological kagome metal series of 𝑅⁢V6⁢Sn6 and
                      𝑅⁢Mn6⁢Sn6 is given in detail. This allows to gain new
                      insights into the complex magnetic interactions, diverse
                      single-ion magnetic anisotropies and spin dynamics in these
                      compounds. The reported ground-state magnetic structures in
                      𝑅⁢V6⁢Sn6 (𝑅 = Tb, Dy, Ho, Er) can pave the way for
                      further explorations of the possible interplay between
                      magnetism and topologically nontrivial electron band
                      structures in the magnetically ordered phase
                      regime.external},
      cin          = {JCNS-2 / JARA-FIT / JCNS-4 / JCNS-ILL / JCNS-FRM-II},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / $I:(DE-82)080009_20140620$ /
                      I:(DE-Juel1)JCNS-4-20201012 / I:(DE-Juel1)JCNS-ILL-20110128
                      / I:(DE-Juel1)JCNS-FRM-II-20110218},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (FZJ) (POF4-6G4)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
      experiment   = {EXP:(DE-MLZ)External-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001390362200002},
      doi          = {10.1103/PhysRevResearch.6.043291},
      url          = {https://juser.fz-juelich.de/record/1034688},
}