Uniaxial ferromagnetism in the kagome metal 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>TbV</mml:mi><mml:mn>6</mml:mn></mml:msub><mml:msub><mml:mi>Sn</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math>

Rosenberg, Elliott; DeStefano, Jonathan M.; Guo, Yucheng; Oh, Ji Seop; Hashimoto, Makoto; Lü, Donghui; Birgeneau, R. J.; Lee, Yongbin; Ke, Liqin; Yi, Ming; Chu, Jiun‐Haw

doi:10.1103/physrevb.106.115139

Cited by 38 publications

(11 citation statements)

References 26 publications

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“…Moreover, the R elements in the adjacent layers cannot change the main electronic structure near E F defined by V 3d orbitals but can supply various magnetic moments which could modify kagome physics in the V layers. Recent studies of RV 6 Sn 6 have revealed kagome surface states and topological surface states [27][28][29][30]. ScV 6 Sn 6 has been extensively studied as the only compound among the series of RV 6 Sn 6 that displays a CDW order [31][32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Kagome surface states and weak electronic correlation in vanadium-kagome metals

Ding

Liu

Zhao

et al. 2023

J. Phys.: Condens. Matter

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RV6Sn6 (R = Y and lanthanides) with two-dimensional vanadium-kagome surface states is an ideal platform to investigate kagome physics and manipulate the kagome features to realize novel phenomena. Utilizing the micron-scale spatially resolved angle-resolved photoemission spectroscopy and ﬁrst-principles calculations, we report a systematical study of the electronic structures of RV6Sn6 (R = Gd, Tb, and Lu) on the two cleaved surfaces, i.e., the V- and RSn1-terminated (001) surfaces. The calculated bands without any renormalization match well with the main ARPES dispersive features, indicating the weak electronic correlation in this system. We observe ’W’-like kagome surface states around the Brillouin zone corners showing R-element-dependent intensities, which is probably due to various coupling strengths between V and RSn1 layers. Our ﬁnding suggests an avenue for tuning electronic states by interlayer coupling based on two-dimensional kagome lattices.

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Section: Introductionmentioning

confidence: 99%

Kagome surface states and weak electronic correlation in vanadium-kagome metals

Ding

Liu

Zhao

et al. 2023

J. Phys.: Condens. Matter

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“…So far, none of the other RV 6 Sn 6 appear to host CDW order. ,,,− What makes the scandium version special? One clue is that the CDW in ScV 6 Sn 6 is suppressed by pressure and disappears before 2.4 GPa .…”

Section: Introductionmentioning

confidence: 99%

Tiny Sc Allows the Chains to Rattle: Impact of Lu and Y Doping on the Charge-Density Wave in ScV₆Sn₆

Meier,

Madhogaria,

Mozaffari

et al. 2023

J. Am. Chem. Soc.

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The kagome metals display an intriguing variety of electronic and magnetic phases arising from the connectivity of atoms on a kagome lattice. A growing number of these materials with vanadium−kagome nets host charge− density waves (CDWs) at low temperatures, including ScV 6 Sn 6 , CsV 3 Sb 5 , and V 3 Sb 2 . Curiously, only the Sc version of the RV 6 Sn 6 materials with a HfFe 6 Ge 6type structure hosts a CDW (R = Gd−Lu, Y, Sc). In this study, we investigate the role of rare earth size in CDW formation in the RV 6 Sn 6 compounds. Magnetization measurements on our single crystals of (Sc,Lu)V 6 Sn 6 and (Sc,Y)V 6 Sn 6 establish that the CDW is suppressed by substituting Sc by larger Lu or Y. Single-crystal X-ray diffraction reveals that compressible Sn−Sn bonds accommodate the larger rare earth atoms within loosely packed R−Sn−Sn chains without significantly expanding the lattice. We propose that Sc provides extra room in these chains crucial to CDW formation in ScV 6 Sn 6 . Our rattling chain model explains why both physical pressure and substitution by larger rare earth atoms hinder CDW formation despite opposite impacts on lattice size. We emphasize the cooperative effect of pressure and rare earth size by demonstrating that pressure further suppresses the CDW in a Lu-doped ScV 6 Sn 6 crystal. Our model not only addresses why a CDW only forms in the RV 6 Sn 6 materials with tiny Sc but also advances our understanding of why unusual CDWs form in the kagome metals.

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“…For example, the nonmagnetic AV 3 Sb 5 (A: K, Rb, Cs) family has provided a unique platform for exploring the unique intertwining of charge density wave (CDW) order and a superconducting ground state. − ,− However, the introduction of magnetic degrees of freedom alongside the Kagome network is a fertile area for exploration. While magnetic analogues of the AV 3 Sb 5 are still in development, the CoSn family of kagome compounds and associated derivatives (e.g., AM 6 X 6 ) have exemplified the diversity and complexity of mixing magnetic sublattices with the kagome motif. − …”

Section: Introductionmentioning

confidence: 99%

Evolution of Highly Anisotropic Magnetism in the Titanium-Based Kagome Metals LnTi₃Bi₄ (Ln: La···Gd³⁺, Eu²⁺, Yb²⁺)

Ortiz,

Miao,

Parker

et al. 2023

Chem. Mater.

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Here, we present a family of titanium-based kagome metals of the form LnTi3Bi4 (Ln: La···Gd3+, Eu2+, Yb2+). Four previously unreported compounds are presented: YbTi3Bi4, GdTi3Bi4, NdTi3Bi4, and PrTi3Bi4. Single-crystal growth methods are provided alongside detailed magnetic and thermodynamic measurements across the entire series. The LnTi3Bi4 family of compounds are orthorhombic (Fmmm), layered compounds that exhibit slightly distorted titanium-based kagome nets interwoven with zigzag lanthanide-based (Ln) chains. Crystals are easily exfoliated parallel to the kagome sheets, and angular resolved photoemission (ARPES) measurements highlight the intricacy of the electronic structure in these compounds. Density functional theory (DFT) and ARPES studies find Dirac points near the Fermi level, consistent with the kagome-derived band structure. The magnetic properties and the associated anisotropy emerge from the quasi-1D zigzag chains of Ln and impart a wide array of magnetic ground states ranging from anisotropic ferromagnetism to complex antiferromagnetism with a cascade of metamagnetic transitions. The combination of the kagome-based electronic structure and highly anisotropic Ln-based magnetism on an exfoliatable platform cements the LnTi3Bi4 family as an interesting addition to the ever-expanding suite of kagome metals.

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Uniaxial ferromagnetism in the kagome metal TbV6Sn6

Cited by 38 publications

References 26 publications

Kagome surface states and weak electronic correlation in vanadium-kagome metals

Kagome surface states and weak electronic correlation in vanadium-kagome metals

Tiny Sc Allows the Chains to Rattle: Impact of Lu and Y Doping on the Charge-Density Wave in ScV₆Sn₆

Evolution of Highly Anisotropic Magnetism in the Titanium-Based Kagome Metals LnTi₃Bi₄ (Ln: La···Gd³⁺, Eu²⁺, Yb²⁺)

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Uniaxial ferromagnetism in the kagome metal TbV6Sn6

Cited by 38 publications

References 26 publications

Kagome surface states and weak electronic correlation in vanadium-kagome metals

Kagome surface states and weak electronic correlation in vanadium-kagome metals

Tiny Sc Allows the Chains to Rattle: Impact of Lu and Y Doping on the Charge-Density Wave in ScV6Sn6

Evolution of Highly Anisotropic Magnetism in the Titanium-Based Kagome Metals LnTi3Bi4 (Ln: La···Gd3+, Eu2+, Yb2+)

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Product

Resources

About

Tiny Sc Allows the Chains to Rattle: Impact of Lu and Y Doping on the Charge-Density Wave in ScV₆Sn₆

Evolution of Highly Anisotropic Magnetism in the Titanium-Based Kagome Metals LnTi₃Bi₄ (Ln: La···Gd³⁺, Eu²⁺, Yb²⁺)