Formation of two-dimensional polarons that are absent in three-dimensional crystals

被引：20

作者：

Muntwiler, M. ^{[1
]}

Zhu, X.-Y. ^{[1
]}

机构：

[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.98.246801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the direct time domain observation of a many-body process in a two-dimensional system: small polaron formation from the localization of a conduction band electron in NaCl thin films of unit cell thickness. Contrary to theoretical prediction for bulk NaCl crystal where an electron polaron does not exist, time-resolved two-photon photoemission reveals small polaron formation from delocalized conduction band electrons in crystalline NaCl thin films. The increased deformability and the reduced electronic bandwidth of a crystalline lattice in the thin film format are both responsible for the formation of small polarons that are absent in bulk solids.

引用

页数：4

共 50 条

[21] Coincidence of the molecular organization of β-substituted oligothiophenes in two-dimensional layers and three-dimensional crystals [J].

Azumi, R ;

Götz, G ;

Debaerdemaeker, T ;

Bäuerle, P .

CHEMISTRY-A EUROPEAN JOURNAL, 2000, 6 (04) :735-744

[22] Direct Transcription of Two-Dimensional Colloidal Crystal Arrays into Three-Dimensional Photonic Crystals [J].

Vlad, Alexandru ;

Froelich, Andreas ;

Zebrowski, Thomas ;

Dutu, Constantin Augustin ;

Busch, Kurt ;

Melinte, Sorin ;

Wegener, Martin ;

Huynen, Isabelle .

ADVANCED FUNCTIONAL MATERIALS, 2013, 23 (09) :1164-1171

[23] From two-dimensional to three-dimensional turbulence through two-dimensional three-component flows [J].

Biferale, L. ;

Buzzicotti, M. ;

Linkmann, M. .

PHYSICS OF FLUIDS, 2017, 29 (11)

[24] Advances in two-dimensional and three-dimensional computer vision [J].

Sutton, MA ;

McNeill, SR ;

Helm, JD ;

Chao, YJ .

PHOTO-MECHANICS, 2000, 77 :323-372

[25] A comparison between the two-dimensional and three-dimensional lattices [J].

Dolocan, A ;

Dolocan, VO ;

Dolocan, V .

MODERN PHYSICS LETTERS B, 2004, 18 (25) :1301-1309

[26] Three-dimensional diffraction tomography by two-dimensional sectioning [J].

Halse, OR ;

Stammes, JJ ;

Devaney, AJ .

OPTICS COMMUNICATIONS, 2003, 224 (4-6) :185-195

[27] Two-Dimensional Static Margin for Three-Dimensional Aircraft [J].

Schmidt, David K. ;

Lisoski, Derek ;

Danowsky, Brian P. .

JOURNAL OF AIRCRAFT, 2025, 62 (03) :748-750

[28] Two-Dimensional and Three-Dimensional Evaluation of the Deformation Relief [J].

Alfyorova, E. A. ;

Lychagin, D. V. .

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2017 (AMHS'17), 2017, 1909

[29] Synthetic opal as two-dimensional and three-dimensional nanotemplates [J].

White, PA ;

Heales, L ;

Barber, RL ;

Pham, KN ;

Turney, TW .

AUSTRALIAN JOURNAL OF CHEMISTRY, 2001, 54 (9-10) :629-631

[30] Three-dimensional object recognition in the absence of two-dimensional [J].

Phinney, RE ;

Noguiera, CAM ;

Siegel, RM .

INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, 1996, 37 (03) :848-848

← 1 2 3 4 5 →