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Two-dimensional hea...
Two-dimensional heavy fermions in the van der Waals metal CeSiI
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- Posey, Victoria A. (författare)
- Columbia Univ, Dept Chem, New York, NY 10027 USA.
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- Turkel, Simon (författare)
- Columbia Univ, Phys Dept, New York, NY 10027 USA.;Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Div, Upton, NY 11973 USA.
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- Rezaee, Mehdi (författare)
- Harvard Univ, Phys Dept, Cambridge 02138, MA USA.
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- Devarakonda, Aravind (författare)
- Columbia Univ, Phys Dept, New York, NY 10027 USA.
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- Kundu, Asish K. (författare)
- Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Div, Upton, NY 11973 USA.
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- Ong, Chin Shen (författare)
- Uppsala universitet,Materialteori
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- Thinel, Morgan (författare)
- Columbia Univ, Dept Chem, New York, NY 10027 USA.;Columbia Univ, Phys Dept, New York, NY 10027 USA.
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- Chica, Daniel G. (författare)
- Columbia Univ, Dept Chem, New York, NY 10027 USA.
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- Vitalone, Rocco A. (författare)
- Columbia Univ, Phys Dept, New York, NY 10027 USA.
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- Jing, Ran (författare)
- Columbia Univ, Phys Dept, New York, NY 10027 USA.
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- Xu, Suheng (författare)
- Columbia Univ, Phys Dept, New York, NY 10027 USA.
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- Needell, David R. (författare)
- Columbia Univ, Dept Chem, New York, NY 10027 USA.
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- Meirzadeh, Elena (författare)
- Columbia Univ, Dept Chem, New York, NY 10027 USA.
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- Feuer, Margalit L. (författare)
- Columbia Univ, Dept Chem, New York, NY 10027 USA.
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- Jindal, Apoorv (författare)
- Columbia Univ, Phys Dept, New York, NY 10027 USA.
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- Cui, Xiaomeng (författare)
- Harvard Univ, Phys Dept, Cambridge 02138, MA USA.
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- Valla, Tonica (författare)
- Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Div, Upton, NY 11973 USA.;Donostia Int Phys Ctr DIPC, Donostia San Sebastian, Spain.
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- Thunström, Patrik, 1981- (författare)
- Uppsala universitet,Materialteori
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- Yilmaz, Turgut (författare)
- Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY USA.
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- Vescovo, Elio (författare)
- Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY USA.
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- Graf, David (författare)
- Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL USA.
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- Zhu, Xiaoyang (författare)
- Columbia Univ, Dept Chem, New York, NY 10027 USA.
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- Scheie, Allen (författare)
- Neutron Scattering Div, Oak Ridge Natl Lab, Oak Ridge, TN USA.;Los Alamos Natl Lab, MPA Q, Los Alamos, NM USA.
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- May, Andrew F. (författare)
- Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN USA.
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- Eriksson, Olle, 1960- (författare)
- Uppsala universitet,Materialteori,Uppsala Univ, Wallenberg Initiat Mat Sci Sustainabil, Uppsala, Sweden.
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- Basov, D. N. (författare)
- Columbia Univ, Phys Dept, New York, NY 10027 USA.
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- Dean, Cory R. (författare)
- Columbia Univ, Phys Dept, New York, NY 10027 USA.
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- Rubio, Angel (författare)
- Max Planck Inst Struct & Dynam Matter, Ctr Free Electron Laser Sci, Hamburg, Germany.;Dept Phys, Hamburg, Germany.;Univ Pais Vasco UPV EHU, Nanobio Spect Grp & European Theoret Spect Facil E, Departmento Polimeros & Mat Avanzados Fis Quim & T, San Sebastian, Spain.;Flatiron Inst, Ctr Computat Quantum Phys, New York, NY 10010 USA.
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- Kim, Philip (författare)
- Harvard Univ, Phys Dept, Cambridge 02138, MA USA.
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- Ziebel, Michael E. (författare)
- Columbia Univ, Dept Chem, New York, NY 10027 USA.
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- Millis, Andrew J. (författare)
- Columbia Univ, Phys Dept, New York, NY 10027 USA.;Flatiron Inst, Ctr Computat Quantum Phys, New York, NY 10010 USA.
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- Pasupathy, Abhay N. (författare)
- Columbia Univ, Phys Dept, New York, NY 10027 USA.;Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Div, Upton, NY 11973 USA.
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- Roy, Xavier (författare)
- Columbia Univ, Dept Chem, New York, NY 10027 USA.
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Columbia Univ, Dept Chem, New York, NY 10027 USA Columbia Univ, Phys Dept, New York, NY 10027 USA.;Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Div, Upton, NY 11973 USA. (creator_code:org_t)
- Springer Nature, 2024
- 2024
- Engelska.
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Ingår i: Nature. - : Springer Nature. - 0028-0836 .- 1476-4687. ; 625:7995, s. 483-488
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Heavy-fermion metals are prototype systems for observing emergent quantum phases driven by electronic interactions1-6. A long-standing aspiration is the dimensional reduction of these materials to exert control over their quantum phases7-11, which remains a significant challenge because traditional intermetallic heavy-fermion compounds have three-dimensional atomic and electronic structures. Here we report comprehensive thermodynamic and spectroscopic evidence of an antiferromagnetically ordered heavy-fermion ground state in CeSiI, an intermetallic comprising two-dimensional (2D) metallic sheets held together by weak interlayer van der Waals (vdW) interactions. Owing to its vdW nature, CeSiI has a quasi-2D electronic structure, and we can control its physical dimension through exfoliation. The emergence of coherent hybridization of f and conduction electrons at low temperature is supported by the temperature evolution of angle-resolved photoemission and scanning tunnelling spectra near the Fermi level and by heat capacity measurements. Electrical transport measurements on few-layer flakes reveal heavy-fermion behaviour and magnetic order down to the ultra-thin regime. Our work establishes CeSiI and related materials as a unique platform for studying dimensionally confined heavy fermions in bulk crystals and employing 2D device fabrication techniques and vdW heterostructures12 to manipulate the interplay between Kondo screening, magnetic order and proximity effects.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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Posey, Victoria ...
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Turkel, Simon
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Rezaee, Mehdi
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Devarakonda, Ara ...
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Kundu, Asish K.
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Ong, Chin Shen
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visa fler...
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Thinel, Morgan
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Chica, Daniel G.
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Vitalone, Rocco ...
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Jing, Ran
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Xu, Suheng
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Needell, David R ...
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Meirzadeh, Elena
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Feuer, Margalit ...
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Jindal, Apoorv
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Cui, Xiaomeng
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Valla, Tonica
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Thunström, Patri ...
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Yilmaz, Turgut
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Vescovo, Elio
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Graf, David
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Zhu, Xiaoyang
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Scheie, Allen
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May, Andrew F.
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Eriksson, Olle, ...
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Basov, D. N.
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Dean, Cory R.
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Rubio, Angel
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Kim, Philip
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Ziebel, Michael ...
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Millis, Andrew J ...
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Pasupathy, Abhay ...
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Roy, Xavier
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