Thermodynamic properties of an electron gas on a curved surface

被引：2

作者：

Batista, F. F., Jr. ^{[1
]}

Farias, G. A. ^{[1
]}

Almeida, N. S. ^{[2
]}

机构：

[1] Univ Fed Ceara, Dept Fis, BR-60455900 Fortaleza, Ceara, Brazil

[2] Univ Estado Rio Grande do Norte, Dept Fis, BR-59610210 Mossoro, RN, Brazil

来源：

EUROPEAN PHYSICAL JOURNAL B | 2013年 / 86卷 / 09期

关键词：

Mesoscopic and Nanoscale Systems;

D O I：

10.1140/epjb/e2013-40495-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report a study on thermodynamic properties of a two-dimensional electron gas confined in a sector of a circular cylinder immersed in a dc magnetic field perpendicular to its axis. This field configuration produces on the electrons in the curved surface, effects similar to a non-homogeneous magnetic field on a flat system. We study these effects by calculating the energy spectra for different curvature radius and symmetries of the magnetic field with respect to the surface. The analysis of the density of states, chemical potential and specific heat of these systems helps to understand the correlation between the externally controlled symmetry and their physical properties.

引用

页数：5

共 20 条

[1] LANDAU QUANTIZATION OF ELECTRONS ON A SPHERE [J].

AOKI, H ;

SUEZAWA, H .

PHYSICAL REVIEW A, 1992, 46 (03) :R1163-R1166

[2] EFFECT OF LOCALIZATION ON THE HALL CONDUCTIVITY IN THE TWO-DIMENSIONAL SYSTEM IN STRONG MAGNETIC-FIELDS [J].

AOKI, H ;

ANDO, T .

SOLID STATE COMMUNICATIONS, 1981, 38 (11) :1079-1082

[3] One-dimensional steeplechase for electrons realized [J].

Björk, MT ;

Ohlsson, BJ ;

Sass, T ;

Persson, AI ;

Thelander, C ;

Magnusson, MH ;

Deppert, K ;

Wallenberg, LR ;

Samuelson, L .

NANO LETTERS, 2002, 2 (02) :87-89

[4] Effect of curvature of a 2D electron sheet on the ballistic conductance and spin-orbit interaction [J].

Chaplik, AV ;

Magarill, LI ;

Romanov, DA .

PHYSICA B-CONDENSED MATTER, 1998, 249 :377-382

[5] Growth of carbon nanotubes at temperatures compatible with integrated circuit technologies [J].

Chen, Guan Yow ;

Jensen, Ben ;

Stolojan, Vlad ;

Silva, S. R. P. .

CARBON, 2011, 49 (01) :280-285

[6] Surface carrier transport in Y nanojunctions: Signatures of the geometric potential [J].

Cuoghi, Giampaolo ;

Ferrari, Giulio ;

Bertoni, Andrea .

PHYSICAL REVIEW B, 2009, 79 (07)

[7] QUANTUM-MECHANICS OF A CONSTRAINED PARTICLE [J].

DACOSTA, RCT .

PHYSICAL REVIEW A, 1981, 23 (04) :1982-1987

[8] Carrier states on cylindrical 2DEGs in a magnetic field [J].

Ferrari, Giulio ;

Bertoni, A. ;

Goldoni, G. ;

Molinari, E. .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2008, 40 (06) :2040-2042

[9] Cylindrical two-dimensional electron gas in a transverse magnetic field [J].

Ferrari, Giulio ;

Bertoni, Andrea ;

Goldoni, Guido ;

Molinari, Elisa .

PHYSICAL REVIEW B, 2008, 78 (11)

[10] Schrodinger equation for a particle on a curved surface in an electric and magnetic field [J].

Ferrari, Giulio ;

Cuoghi, Giampaolo .

PHYSICAL REVIEW LETTERS, 2008, 100 (23)

← 1 2 →