Adatoms and Anderson localization in graphene

被引：12

作者：

Garcia, Jose H. ^{[1
]}

Uchoa, Bruno ^{[2
]}

Covaci, Lucian ^{[3
]}

Rappoport, Tatiana G. ^{[1
]}

机构：

[1] Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ, Brazil

[2] Univ Oklahoma, Dept Phys & Astron, Norman, OK 73019 USA

[3] Univ Antwerp, Dept Fys, B-2020 Antwerp, Belgium

来源：

PHYSICAL REVIEW B | 2014年 / 90卷 / 08期

基金：

美国国家科学基金会;

关键词：

TRANSITION; STATES; TRANSPORT; SYSTEMS; ABSENCE;

D O I：

10.1103/PhysRevB.90.085425

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We address the nature of the disordered state that results from the adsorption of adatoms in graphene. For adatoms that sit at the center of the honeycomb plaquette, as in the case of most transition metals, we show that the ones that form a zero-energy resonant state lead to Anderson localization in the vicinity of the Dirac point. Among those, we show that there is a symmetry class of adatoms where Anderson localization is suppressed, leading to an exotic metallic state with large and rare charge droplets, that localizes only at the Dirac point. We identify the experimental conditions for the observation of the Anderson transition for adatoms in graphene.

引用

页数：7

共 37 条

[11] Adatoms and Clusters of 3d Transition Metals on Graphene: Electronic and Magnetic Configurations [J].

Eelbo, T. ;

Wasniowska, M. ;

Thakur, P. ;

Gyamfi, M. ;

Sachs, B. ;

Wehling, T. O. ;

Forti, S. ;

Starke, U. ;

Tieg, C. ;

Lichtenstein, A. I. ;

Wiesendanger, R. .

PHYSICAL REVIEW LETTERS, 2013, 110 (13)

[12] Control of Graphene's Properties by Reversible Hydrogenation: Evidence for Graphane [J].

Elias, D. C. ;

Nair, R. R. ;

Mohiuddin, T. M. G. ;

Morozov, S. V. ;

Blake, P. ;

Halsall, M. P. ;

Ferrari, A. C. ;

Boukhvalov, D. W. ;

Katsnelson, M. I. ;

Geim, A. K. ;

Novoselov, K. S. .

SCIENCE, 2009, 323 (5914) :610-613

[13] Unified description of the dc conductivity of monolayer and bilayer graphene at finite densities based on resonant scatterers [J].

Ferreira, Aires ;

Viana-Gomes, J. ;

Nilsson, Johan ;

Mucciolo, E. R. ;

Peres, N. M. R. ;

Castro Neto, A. H. .

PHYSICAL REVIEW B, 2011, 83 (16)

[14] Orbital selective coupling between Ni adatoms and graphene Dirac electrons [J].

Gyamfi, M. ;

Eelbo, T. ;

Wasniowska, M. ;

Wehling, T. O. ;

Forti, S. ;

Starke, U. ;

Lichtenstein, A. I. ;

Katsnelson, M. I. ;

Wiesendanger, R. .

PHYSICAL REVIEW B, 2012, 85 (16)

[15] Bonding and charge transfer by metal adatom adsorption on graphene [J].

Liu, Xiaojie ;

Wang, C. Z. ;

Yao, Y. X. ;

Lu, W. C. ;

Hupalo, M. ;

Tringides, M. C. ;

Ho, K. M. .

PHYSICAL REVIEW B, 2011, 83 (23)

[16] Statistics of energy levels and eigenfunctions in disordered systems [J].

Mirlin, AD .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2000, 326 (5-6) :259-382

[17] DISTRIBUTION OF LOCAL-DENSITIES OF STATES, ORDER-PARAMETER FUNCTION, AND CRITICAL-BEHAVIOR NEAR THE ANDERSON TRANSITION [J].

MIRLIN, AD ;

FYODOROV, YV .

PHYSICAL REVIEW LETTERS, 1994, 72 (04) :526-529

[18] Disorder and electronic transport in graphene [J].

Mucciolo, E. R. ;

Lewenkopf, C. H. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2010, 22 (27)

[19] Two-dimensional gas of massless Dirac fermions in graphene [J].

Novoselov, KS ;

Geim, AK ;

Morozov, SV ;

Jiang, D ;

Katsnelson, MI ;

Grigorieva, IV ;

Dubonos, SV ;

Firsov, AA .

NATURE, 2005, 438 (7065) :197-200

[20] Electron transport in disordered graphene [J].

Ostrovsky, P. M. ;

Gornyi, I. V. ;

Mirlin, A. D. .

PHYSICAL REVIEW B, 2006, 74 (23)

← 1 2 3 4 →