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Pengcheng Dai

Sam and Helen Worden Professor of Physics

Rice University

United States

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Research Interests

Condensed Matter Physics

100%

Materials Chemistry

100%

Solid State Physics

100%

Topological Insulator

100%

Quantum Magnetism

70%

Electronic Structure

50%

Magnetism

40%

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Articles29

Neutron scattering and thermodynamic evidence for emergent photons and fractionalization in a pyrochlore spin ice

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Year:

2025

Correlation between complex spin textures and the magnetocaloric and Hall effects in Eu(Ga1−xAlx)4 ( x=0.9 , 1)

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Year:

2025

Vacancy-induced suppression of charge density wave order and its impact on magnetic order in kagome antiferromagnet FeGe

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Year:

2025

Spin correlations in the nematic quantum disordered state of FeSe

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Year:

2025

Disentangling the intertwined orders in a magnetic kagome metal

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Year:

2025

Linear scaling relation between two-dimensional massless Dirac fermion Fermi velocity and Fe-As bond length in iron arsenide superconductor systems

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Year:

2025

Magnetism of kagome metals <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mo>(</mml:mo><mml:msub><mml:mi>Fe</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>Co</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:mo>)</mml:mo><mml:mspace width="0.16em"/><mml:mi>Sn</mml:mi></mml:mrow></mml:math> studied by <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>μ</mml:mi><mml:mi>SR</mml:mi></mml:mrow></mml:math>

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Year:

2025

Charge Dynamics of an Unconventional Three-Dimensional Charge Density Wave in Kagome FeGe

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Year:

2025

Thermal evolution of spin excitations in honeycomb Ising antiferromagnetic FePSe3

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Year:

2024

Conventional superconductivity in the doped kagome superconductor Cs(V0.86Ta0.14)3Sb5 from vortex lattice studies

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Year:

2024

Absence of E2g Nematic Instability and Dominant A1g Response in the Kagome Metal CsV3Sb5

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Year:

2024

Spin-Charge-Lattice Coupling across the Charge Density Wave Transition in a Kagome Lattice Antiferromagnet

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Year:

2024

Orbital Ingredients and Persistent Dirac Surface State for the Topological Band Structure in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>FeTe</mml:mi></mml:mrow><mml:mrow><mml:mn>0.55</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>Se</mml:mi></mml:mrow><mml:mrow><mml:mn>0.45</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

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Year:

2024

Reversible non-volatile electronic switching in a near-room-temperature van der Waals ferromagnet

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Year:

2024

Quantum simulation of an extended Dicke model with a magnetic solid

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Year:

2024

Spectral evidence for local-moment ferromagnetism in the van der Waals metals <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Fe</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>GaTe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Fe</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>GeTe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>

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Year:

2024

Symmetry Breaking and Ascending in the Magnetic Kagome Metal FeGe

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Year:

2024

Competing itinerant and local spin interactions in kagome metal FeGe

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Year:

2024

Search for orbital magnetism in the kagome superconductor CsV3Sb5 using neutron diffraction

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Year:

2024

Phase Stability of Hexagonal/Cubic Boron Nitride Nanocomposites

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Year:

2023

Spectral evidence for unidirectional charge density wave in detwinned <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>BaNi</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>As</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>

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Year:

2023

Disorder-induced excitation continuum in a spin- <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mfrac><mml:mn>1</mml:mn><mml:mn>2</mml:mn></mml:mfrac></mml:math> cobaltate on a triangular lattice

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Year:

2023

Diffusive excitonic bands from frustrated triangular sublattice in a singlet-ground-state system

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Year:

2023

Magnetism and charge density wave order in kagome FeGe

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Year:

2023

Evidence for Topological Magnon–Phonon Hybridization in a 2D Antiferromagnet down to the Monolayer Limit

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Year:

2023

Exchange field enhanced upper critical field of the superconductivity in compressed antiferromagnetic EuTe2

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Year:

2023

Imaging real-space flat band localization in kagome magnet FeSn

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Year:

2023

Tunable unconventional kagome superconductivity in charge ordered RbV3Sb5 and KV3Sb5

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Year:

2023

Spin structure and dynamics of the topological semimetal Co3Sn2-xInxS2

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Year:

2022

Collaborators23

Silke Paschen

Vienna University of Technology

AUSTRIA

Emilia Morosan

Professor

Rice University

UNITED STATES

Motoaki BAMBA

Associate Professor

Yokohama National University

JAPAN

Qimiao Si

Rice University

UNITED STATES

Yaofeng Xie

Rice University

UNITED STATES

Jae-Ho Chung

Professor

Korea University

SOUTH KOREA

Paul Steffens

Institut Laue-Langevin

FRANCE

Girsh Blumberg

Distinguished Professor

Rutgers University

UNITED STATES

Jiun-Haw Chu

Associate Professor

University of Washington

UNITED STATES

Andriy Nevidomskyy

Associate Professor

Rice University

UNITED STATES

Morten Ring Eskildsen

Professor

University of Notre Dame

UNITED STATES

Anand B Puthirath

Rice University

UNITED STATES

Han Yan

Assistant Professor

The Univeristy of Tokyo

JAPAN

Michael Flynn

Boston University

UNITED STATES

Nathan Chalus

Teaching Assistant

University of Notre Dame

UNITED STATES

Hanyu Zhu

Rice University

UNITED STATES

Mehrdad Toussi Kiani

Assistant Professor

Florida A&M University-Florida State University College of Engineering

UNITED STATES

Alex Amato

Head a.i.

Paul Scherrer Institut

SWITZERLAND

Sang-Wook Cheong

Professor

Rutgers University

UNITED STATES

Rui He

Professor

Texas Tech University

UNITED STATES

Jianwei Huang

Rice University

UNITED STATES

Yifeng Han

Arizona State University

UNITED STATES

YU He

University of California, Berkeley

UNITED STATES

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