Evidence for semiconducting behavior with a narrow band gap of Bernal graphite

被引：65

作者：

Garcia, N. ^{[2
,3
]}

Esquinazi, P. ^{[1
]}

Barzola-Quiquia, J. ^{[1
]}

Dusari, S. ^{[1
]}

机构：

[1] Univ Leipzig, Inst Expt Phys 2, Div Superconduct & Magnetism, D-04103 Leipzig, Germany

[2] CSIC, Lab Fis Sistemas Pequenos & Nanotecnol, E-28006 Madrid, Spain

[3] Univ Fed Santa Catarina, Lab Filmes Finos & Superficies, Florianopolis, SC, Brazil

来源：

NEW JOURNAL OF PHYSICS | 2012年 / 14卷

关键词：

DIRAC-FERMIONS; TRANSITION; BICRYSTALS; TRANSPORT; SUPERCONDUCTIVITY; INTERFACES; GERMANIUM; ENERGY; BI;

D O I：

10.1088/1367-2630/14/5/053015

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the resistance of a large number of highly oriented graphite samples with areas ranging from several mm(2) to a few mu m(2) and thickness from similar to 10 nm to several tens of micrometers. The measured resistance can be explained by the parallel contribution of semiconducting graphene layers with low carrier density < 10(9) cm(-2) and the one from metallic-like internal interfaces. The results indicate that ideal graphite with Bernal stacking structure is a semiconductor with a narrow band gap E-g similar to 40 meV.

引用

页数：14

共 68 条

[1]

[Anonymous], PHYS REV LETT

[2] Electric carrier concentration in graphite: Dependence of electrical resistivity and magnetoresistance on defect concentration [J].

Arndt, A. ;

Spoddig, D. ;

Esquinazi, P. ;

Barzola-Quiquia, J. ;

Dusari, S. ;

Butz, T. .

PHYSICAL REVIEW B, 2009, 80 (19)

[3] Ferromagnetic- and Superconducting-Like Behavior of the Electrical Resistance of an Inhomogeneous Graphite Flake [J].

Barzola-Quiquia, J. ;

Esquinazi, P. .

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2010, 23 (04) :451-455

[4] The influence of Ga+ irradiation on the transport properties of mesoscopic conducting thin films [J].

Barzola-Quiquia, J. ;

Dusari, S. ;

Bridoux, G. ;

Bern, F. ;

Molle, A. ;

Esquinazi, P. .

NANOTECHNOLOGY, 2010, 21 (14)

[5] Sample size effects on the transport characteristics of mesoscopic graphite samples [J].

Barzola-Quiquia, J. ;

Yao, J. -L. ;

Roediger, P. ;

Schindler, K. ;

Esquinazi, P. .

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2008, 205 (12) :2924-2933

[6]

Barzola-Quiquia J, 2011, GRAPHENE EXPT STUDY

[7] The structure of graphite [J].

Bernal, JD .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER, 1924, 106 (740) :749-773

[8] Ultrafast Carrier Dynamics in Graphite [J].

Breusing, Markus ;

Ropers, Claus ;

Elsaesser, Thomas .

PHYSICAL REVIEW LETTERS, 2009, 102 (08)

[9] Critical exponents of the semimetal-insulator transition in graphene: A Monte Carlo study [J].

Drut, Joaquin E. ;

Laehde, Timo A. .

PHYSICAL REVIEW B, 2009, 79 (24)

[10] Is Graphene in Vacuum an Insulator? [J].

Drut, Joaquin E. ;

Lahde, Timo A. .

PHYSICAL REVIEW LETTERS, 2009, 102 (02)

← 1 2 3 4 5 6 7 →