Direct/Dual electronic thermal conductivity on graphene: Gate-potential and ripples

L. Palma-Chilla; J. C. Flores

doi:10.1016/j.physb.2019.411828

Direct/Dual electronic thermal conductivity on graphene: Gate-potential and ripples

L. Palma-Chilla
, J. C. Flores

Department of Physics

Universidad de La Serena

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A functional relationship allows to connect the thermodynamic properties between the Direct and Dual bands of a graphene sheet. For low temperature, analytical expressions for internal energy, heat capacity and entropy are obtained when a positive gate potential is considered. Through a numerical study, it is shown that thermal conductivity decreases in both branches when the gate potential is applied, whereas ripples increase electronic thermal conductivity.

Original language	English
Article number	411828
Journal	Physica B: Condensed Matter
Volume	577
DOIs	https://doi.org/10.1016/j.physb.2019.411828
State	Published - 15 Jan 2020

Keywords

Dual systems
Fractal dimensions
Graphene
Massless fermions
Negative temperature
Ripples

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10.1016/j.physb.2019.411828

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title = "Direct/Dual electronic thermal conductivity on graphene: Gate-potential and ripples",

abstract = "A functional relationship allows to connect the thermodynamic properties between the Direct and Dual bands of a graphene sheet. For low temperature, analytical expressions for internal energy, heat capacity and entropy are obtained when a positive gate potential is considered. Through a numerical study, it is shown that thermal conductivity decreases in both branches when the gate potential is applied, whereas ripples increase electronic thermal conductivity.",

keywords = "Dual systems, Fractal dimensions, Graphene, Massless fermions, Negative temperature, Ripples",

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T2 - Gate-potential and ripples

AU - Palma-Chilla, L.

AU - Flores, J. C.

PY - 2020/1/15

Y1 - 2020/1/15

N2 - A functional relationship allows to connect the thermodynamic properties between the Direct and Dual bands of a graphene sheet. For low temperature, analytical expressions for internal energy, heat capacity and entropy are obtained when a positive gate potential is considered. Through a numerical study, it is shown that thermal conductivity decreases in both branches when the gate potential is applied, whereas ripples increase electronic thermal conductivity.

AB - A functional relationship allows to connect the thermodynamic properties between the Direct and Dual bands of a graphene sheet. For low temperature, analytical expressions for internal energy, heat capacity and entropy are obtained when a positive gate potential is considered. Through a numerical study, it is shown that thermal conductivity decreases in both branches when the gate potential is applied, whereas ripples increase electronic thermal conductivity.

KW - Dual systems

KW - Fractal dimensions

KW - Graphene

KW - Massless fermions

KW - Negative temperature

KW - Ripples

UR - https://www.scopus.com/pages/publications/85074514465

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DO - 10.1016/j.physb.2019.411828

M3 - Article

AN - SCOPUS:85074514465

SN - 0921-4526

VL - 577

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

M1 - 411828

ER -

Direct/Dual electronic thermal conductivity on graphene: Gate-potential and ripples

Abstract

Keywords

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