Charge-Transfer and Non-Rigid-Band Effects in the Graphite Compound Li<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">C</mml:mi></mml:mrow><mml:mrow><mml:mn>6</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

Eberhardt, W.; McGovern, I.T.; Plummer, E. W.; Fisher, Julian

doi:10.1103/physrevlett.44.200

Cited by 173 publications

(39 citation statements)

References 14 publications

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“…Another band has the top of dispersion at ∼5 eV at the point and exhibits a strong downward dispersion toward the K point. The electronic structure of C 6 LiC 6 looks quite similar to that of C 6 X (X = Li, Ca, La, Eu, and Yb), 1,6,8,9,15,[18][19][20] although the weak intensity near the point is not observed in pristine graphene or graphite. In order to see more clearly these dispersive features in the ARPES spectra, we have mapped out the band structure and show the result in Fig.…”

Section: Resultsmentioning

confidence: 73%

“…1 In fact, lithium(Li)-intercalated graphite (Li-GIC) has been widely used as an anode material in the rechargeable battery. [2][3][4][5] Fabrication of bulk Li-GIC and its electric structure have been intensively studied experimentally [6][7][8][9] and theoretically, [10][11][12][13] while it is unclear whether the intercalation of Li atoms is possible in the thinnest limit, namely in bilayer graphene. Fabrication of Li-intercalated bilayer graphene is not only challenging but also very important for developing a new nano-scale-thickness ion battery with a high charge/discharge rate.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Li-intercalated bilayer graphene

et al. 2011

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We have succeeded in fabricating Li-intercalated bilayer graphene on silicon carbide. The low-energy electron diffraction from Li-deposited bilayer graphene shows a sharp 3 × 3 R 30° pattern in contrast to Li-deposited monolayer graphene. This indicates that Li atoms are intercalated between two adjacent graphene layers and take the same well-ordered superstructure as in bulk C6Li. The angle-resolved photoemission spectroscopy has revealed that Li atoms are fully ionized and the π bands of graphene are systematically folded by the superstructure of intercalated Li atoms, producing a snowflake-like Fermi surface centered at the Γ point. The present result suggests a high potential of Li-intercalated bilayer graphene for application to a nano-scale Li-ion battery

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Section: Resultsmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Fabrication of Li-intercalated bilayer graphene

et al. 2011

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“…Because of the nearly rigid-band behaviour both of the occupied <r-band [15] and of the unoccupied rc-band (see our core excitation spectroscopy results [16]) we conclude that the energy of the a -*• ^-transition remains roughly the same.…”

Section: Lic 6 S(q Co)-spectra Of Lic 6 Together With the Deduced mentioning

confidence: 87%

“…Whereas the occupied 7r-band shows rigidband behaviour [15], the interlayer band of LiC 6 will be 2 eV lower in energy than the graphite interlayer state, possibly because of strong hybridization with the Li metal 2s-band [2].…”

Section: Lic 6 S(q Co)-spectra Of Lic 6 Together With the Deduced mentioning

confidence: 99%

The Dynamic Structure Factor of LiC₆ and KC₈ : Inelastic Synchrotron X-Ray Scattering Results

Berthold

Gabriel

Schülke

1993

Zeitschrift Für Naturforschung A

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The dynamic structure factor S(q, &>) of electrons in lithium-intercalated graphite (LiC 6 ) and potassium-intercalated graphite (KC 8 ) for momentum transfer q || c-axis has been measured by inelastic synchrotron X-ray scattering. The dielectric function s{q, a>) was deduced from the data and compared with e(q, co) of pristine graphite.The main feature in the different Im [e(q, tt>)]-spectra, a more or less intense peak around 14 eV, can be assigned to maxima of the symmetry-projected joint density of occupied and unoccupied electron states near the Fermi level. Knowing the position of the occupied bands by photoemission experiments, predictions about the unoccupied n and interlayer states can be made.In the case of LiC 6 , a shift and broadening of the first Im [e(q, a>)]-peak was found, which can be explained by a decrease of the energy of the interlayer-band because of the strong hybridization of this graphite-derived band with the Li metal 2s-band.In the case of KC 8 , a weakening of the first peak of Im [e(q, co)] was observed, which we attribute both to a decreasing overlap of the occupied 7t-derived state with the empty interlayer state and to a change of symmetry of the occupied er-derived states as well as of the empty rc-derived states.

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“…For example, a rigid band model with charge transfer was proposed by assuming that intercalation only alters the density of state (DOS) at the Fermi level (E F ) without any other change in the electronic structure [10]. However, previous experiments in intercalated graphite compounds did not support the rigid band model [11]. It is therefore of interest to determine if the rigid band model is applicable to TMDC, which is a question not yet answered in the literature.…”

Section: Introductionmentioning

confidence: 99%

Anisotropic intermediate coupling superconductivity in Cu_0.03TaS₂

Zhu¹,

Sun²,

Zhang³

et al. 2009

J. Phys.: Condens. Matter

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Charge-Transfer and Non-Rigid-Band Effects in the Graphite Compound LiC6

Cited by 173 publications

References 14 publications

Fabrication of Li-intercalated bilayer graphene

Fabrication of Li-intercalated bilayer graphene

The Dynamic Structure Factor of LiC₆ and KC₈ : Inelastic Synchrotron X-Ray Scattering Results

Anisotropic intermediate coupling superconductivity in Cu_0.03TaS₂

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Charge-Transfer and Non-Rigid-Band Effects in the Graphite Compound LiC6

Cited by 173 publications

References 14 publications

Fabrication of Li-intercalated bilayer graphene

Fabrication of Li-intercalated bilayer graphene

The Dynamic Structure Factor of LiC6 and KC8 : Inelastic Synchrotron X-Ray Scattering Results

Anisotropic intermediate coupling superconductivity in Cu0.03TaS2

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Product

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The Dynamic Structure Factor of LiC₆ and KC₈ : Inelastic Synchrotron X-Ray Scattering Results

Anisotropic intermediate coupling superconductivity in Cu_0.03TaS₂