Anisotropic mass enhancement in a two-dimensional heavy-fermion material

Nature Physics (2025)Cite this article In a heavy-fermion material, hybridization of conduction electrons and electrons in partially filled core-levels enhances the mass of charge carriers. Now, experiments using a two-dimensional heavy-fermion material show that the hybridization can be extremely anisotropic, with the result that the effective mass of charge carriers is direction-dependent.This is a preview of subscription content, access via your institution Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription $32.99 / 30 days cancel any timeSubscribe to this journal Receive 12 print issues and online access $259.00 per yearonly $21.58 per issueBuy this articlePrices may be subject to local taxes which are calculated during checkoutKondo, J. Sticking to my bush. J. Phys. Soc. Jpn 74, 1–3 (2005). This paper opens a special volume marking 40 years of the Kondo effect, the collected articles summarize the evolution of the field.Article Google Scholar Stewart, G. R. Heavy-fermion systems. Rev. Mod. Phys. 56, 755–787 (1984). This review provides an overview of the experimental signatures of heavy-fermion systems.Article Google Scholar Hoffman, J. E. et al. Imaging quasiparticle interference in Bi2Sr2CaCu2O8+δ. Science 297, 1148–1151 (2002). This paper demonstrates the power of QPI as a tool to map out low-energy band structure in a material.Article Google Scholar Jacko, A. C., Fjaerestad, J. O. & Powell, B. J. A unified explanation of the Kadowaki–Woods ratio in strongly correlated metals. Nat. Phys. 5, 422–425 (2009). This paper explains the universality of the Kadowaki–Woods ratio across different heavy-fermion systems.Article Google Scholar Download referencesPublisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.This is a summary of: Turkel, S. et al. Nodal hybridization in a two-dimensional heavy-fermion material. Nat. Phys. https://doi.org/10.1038/s41567-025-03060-y (2025).Reprints and permissions Anisotropic mass enhancement in a two-dimensional heavy-fermion material. Nat. Phys. (2025). https://doi.org/10.1038/s41567-025-03067-5Download citationPublished: 06 November 2025Version of record: 06 November 2025DOI: https://doi.org/10.1038/s41567-025-03067-5Anyone you share the following link with will be able to read this content:Sorry, a shareable link is not currently available for this article. Provided by the Springer Nature SharedIt content-sharing initiative