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Title: Gapped electronic structure of epitaxial stanene on InSb(111)

Journal Article · · Physical Review B
 [1];  [2];  [1];  [3];  [4];  [4];  [5];  [6];  [7];
  1. Univ. of Illinois at Urbana-Champaign, IL (United States). Dept. of Physics; Univ. of Illinois at Urbana-Champaign, IL (United States). Frederick Seitz Materials Research Lab.; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  2. Academia Sinica, Taipei (Taiwan). Inst. of Atomic and Molecular Sciences
  3. Univ. of Illinois at Urbana-Champaign, IL (United States). Dept. of Physics; Univ. of Illinois at Urbana-Champaign, IL (United States). Frederick Seitz Materials Research Lab.; Nanjing Univ. of Science and Technology, Nanjing (China). College of Science
  4. Univ. of Illinois at Urbana-Champaign, IL (United States). Dept. of Physics; Univ. of Illinois at Urbana-Champaign, IL (United States). Frederick Seitz Materials Research Lab.
  5. Univ. of Missouri, Columbia, MO (United States). Dept. of Physics and Astronomy
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  7. Academia Sinica, Taipei (Taiwan). Inst. of Atomic and Molecular Sciences; Georgia Inst. of Technology, Atlanta, GA (United States). School of Physics

We report that stanene (single-layer gray tin), with an electronic structure akin to that of graphene but exhibiting a much larger spin-orbit gap, offers a promising platform for room-temperature electronics based on the quantum spin Hall (QSH) effect. This material has received much theoretical attention, but a suitable substrate for stanene growth that results in an overall gapped electronic structure has been elusive; a sizable gap is necessary for room-temperature applications. Here, we report a study of stanene, epitaxially grown on the (111)B-face of indium antimonide (InSb). Angle-resolved photoemission spectroscopy measurements reveal a gap of 0.44 eV, in agreement with our first-principles calculations. Lastly, the results indicate that stanene on InSb(111) is a strong contender for electronic QSH applications.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Univerisity of Illinois at Urbana-Champaign, Urbana, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-05CH11231; FG02-07ER46383
OSTI ID:
1571094
Alternate ID(s):
OSTI ID: 1416628; OSTI ID: 1416710
Journal Information:
Physical Review B, Vol. 97, Issue 3; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 83 works
Citation information provided by
Web of Science

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Cited By (18)

Thermal Stability Enhancement in Epitaxial Alpha Tin Films by Strain Engineering journal August 2019
Realizing an Epitaxial Decorated Stanene with an Insulating Bandgap journal July 2018
Recent Advances in Growth of Novel 2D Materials: Beyond Graphene and Transition Metal Dichalcogenides journal July 2018
Stanene: A Promising Material for New Electronic and Spintronic Applications journal August 2019
Growth and Magnetotransport in Thin‐Film α‐Sn on CdTe journal September 2019
The Xenes Generations: A Taxonomy of Epitaxial Single‐Element 2D Materials journal September 2019
Epitaxial growth and physical properties of 2D materials beyond graphene: from monatomic materials to binary compounds journal January 2018
Kinetic pathways towards mass production of single crystalline stanene on topological insulator substrates journal January 2018
Facile fabrication of 2D stanene nanosheets via a dealloying strategy for potassium storage journal January 2019
Experimental observation of conductive edge states in weak topological insulator candidate HfTe 5 journal December 2018
Stabilizing the isolated Sn 2 Bi nanosheet and tailoring its electronic structure by chemical functionalization: A computational study journal February 2019
A van der Waals epitaxial growth of ultrathin two-dimensional Sn film on graphene covered Cu(111) substrate journal September 2019
Group-IV 2D materials beyond graphene on nonmetal substrates: Challenges, recent progress, and future perspectives journal December 2019
Functionalization of group-14 two-dimensional materials journal May 2018
Interacting topological insulators: a review journal October 2018
Epitaxial growth and electronic properties of few-layer stanene on InSb (1 1 1) journal October 2019
The Xenes Generations: A Taxonomy of Epitaxial Single‐Element 2D Materials journal September 2019
Interacting topological insulators: a review text January 2018

Figures / Tables (4)


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