Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Bharti Matta; Philipp Rosenzweig; Kathrin Küster; Craig Polley; Ulrich Starke

doi:10.1103/PhysRevB.111.155435

Research paper

Experimental GrowthExperimental CharacterizationComputational DFT

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Bharti Matta, Philipp Rosenzweig, Kathrin Küster, Craig Polley et al.

2025·10.1103/PhysRevB.111.155435·arXiv:2501.08172

Research paper

Experimental GrowthExperimental CharacterizationComputational DFT

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Bharti Matta, Philipp Rosenzweig, Kathrin Küster, Craig Polley et al.

2025·10.1103/PhysRevB.111.155435·arXiv:2501.08172

Research paper

Experimental GrowthExperimental CharacterizationComputational DFT

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Bharti Matta, Philipp Rosenzweig, Kathrin Küster, Craig Polley et al.

2025·10.1103/PhysRevB.111.155435·arXiv:2501.08172

Research paper

Experimental GrowthExperimental CharacterizationComputational DFT

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Bharti Matta, Philipp Rosenzweig, Kathrin Küster, Craig Polley et al.

2025·10.1103/PhysRevB.111.155435·arXiv:2501.08172

Research paper

Experimental GrowthExperimental CharacterizationComputational DFT

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Bharti Matta, Philipp Rosenzweig, Kathrin Küster, Craig Polley et al.

2025·10.1103/PhysRevB.111.155435·arXiv:2501.08172

Research paper

Experimental GrowthExperimental CharacterizationComputational DFT

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Bharti Matta, Philipp Rosenzweig, Kathrin Küster, Craig Polley et al.

2025·10.1103/PhysRevB.111.155435·arXiv:2501.08172

Research paper

Experimental GrowthExperimental CharacterizationComputational DFT

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Bharti Matta, Philipp Rosenzweig, Kathrin Küster, Craig Polley et al.

2025·10.1103/PhysRevB.111.155435·arXiv:2501.08172

Research paper

Experimental GrowthExperimental CharacterizationComputational DFT

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Bharti Matta, Philipp Rosenzweig, Kathrin Küster, Craig Polley et al.

2025·10.1103/PhysRevB.111.155435·arXiv:2501.08172

Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding Pb-QFMLG with a graphene monolayer above an intercalated Pb layer on SiC.

5 preparations5 characterizations7 properties4 figures

ExperimentalCStudied MaterialPbStudied MaterialSiCSubstrate / Dielectric

Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding Pb-QFMLG with a graphene monolayer above an intercalated Pb layer on SiC.

5 preparations5 characterizations7 properties4 figures

ExperimentalCStudied MaterialPbStudied MaterialSiCSubstrate / Dielectric

Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding Pb-QFMLG with a graphene monolayer above an intercalated Pb layer on SiC.

5 preparations5 characterizations7 properties4 figures

ExperimentalCStudied MaterialPbStudied MaterialSiCSubstrate / Dielectric

Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding Pb-QFMLG with a graphene monolayer above an intercalated Pb layer on SiC.

5 preparations5 characterizations7 properties4 figures

ExperimentalCStudied MaterialPbStudied MaterialSiCSubstrate / Dielectric

Type	Label	Value	Material	Sample	Condition	Source
Substrate Periodicity	superstructure periodicity relative to graphene	10×10	C Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Surface Periodicity	corrugation spacing	2.5nm	C Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Fermi Momentum	kF	1.4angstrom⁻¹	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Effective Mass	m*	5.3me	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Electron Density	interlayer Pb electron density	680000000000000cm⁻²	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Calculated Band Gap	Pb band gap	0.025eV	Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Interlayer Spacing	Pb-Si distance	2.8angstrom	Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Optical Band Gap	band gap	0.5eV	—	—	—	—
Exciton Binding Energy	exciton binding energy	0.5eV	—	—	—	—

Type	Label	Value	Material	Sample	Condition	Source
Substrate Periodicity	superstructure periodicity relative to graphene	10×10	C Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Surface Periodicity	corrugation spacing	2.5nm	C Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Fermi Momentum	kF	1.4angstrom⁻¹	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Effective Mass	m*	5.3me	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Electron Density	interlayer Pb electron density	680000000000000cm⁻²	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Calculated Band Gap	Pb band gap	0.025eV	Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Interlayer Spacing	Pb-Si distance	2.8angstrom	Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Optical Band Gap	band gap	0.5eV	—	—	—	—
Exciton Binding Energy	exciton binding energy	0.5eV	—	—	—	—

Type	Label	Value	Material	Sample	Condition	Source
Substrate Periodicity	superstructure periodicity relative to graphene	10×10	C Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Surface Periodicity	corrugation spacing	2.5nm	C Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Fermi Momentum	kF	1.4angstrom⁻¹	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Effective Mass	m*	5.3me	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Electron Density	interlayer Pb electron density	680000000000000cm⁻²	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Calculated Band Gap	Pb band gap	0.025eV	Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Interlayer Spacing	Pb-Si distance	2.8angstrom	Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Optical Band Gap	band gap	0.5eV	—	—	—	—
Exciton Binding Energy	exciton binding energy	0.5eV	—	—	—	—

Type	Label	Value	Material	Sample	Condition	Source
Substrate Periodicity	superstructure periodicity relative to graphene	10×10	C Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Surface Periodicity	corrugation spacing	2.5nm	C Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Fermi Momentum	kF	1.4angstrom⁻¹	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Effective Mass	m*	5.3me	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Electron Density	interlayer Pb electron density	680000000000000cm⁻²	Pb	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Calculated Band Gap	Pb band gap	0.025eV	Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Interlayer Spacing	Pb-Si distance	2.8angstrom	Pb SiC	Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding		—
Optical Band Gap	band gap	0.5eV	—	—	—	—
Exciton Binding Energy	exciton binding energy	0.5eV	—	—	—	—

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Why these are connected

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Why these are connected

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Why these are connected

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Why these are connected

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Why these are connected

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Why these are connected

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Why these are connected

Pb-intercalated epitaxial graphene on SiC: Full insight into band structure and orbital character of interlayer Pb, and charge transfer into graphene

Why these are connected

Samples

Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding Pb-QFMLG with a graphene monolayer above an intercalated Pb layer on SiC.

Materials

Growth

Processing

Characterization

Properties

Simulations

Samples

Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding Pb-QFMLG with a graphene monolayer above an intercalated Pb layer on SiC.

Materials

Growth

Processing

Characterization

Properties

Simulations

Samples

Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding Pb-QFMLG with a graphene monolayer above an intercalated Pb layer on SiC.

Materials

Growth

Processing

Characterization

Properties

Simulations

Samples

Pb-intercalated epitaxial graphene on 6H-SiC(0001), yielding Pb-QFMLG with a graphene monolayer above an intercalated Pb layer on SiC.

Materials

Growth

Processing

Characterization

Properties

Simulations