In Situ Formation of Free-Standing Single-Atom-Thick Antiferromagnetic Chromium Membranes

Huy Quang Ta; Qin Xiao Yang; Shuyuan Liu; A. Bachmatiuk; Rafael G. Mendes; Thomas Gemming; Yu Liu; Lijun Liu; Klaudia Tokarska; Rajen B. Patel; Jin Ho Choi; Mark H. Rümmeli

doi:10.1021/acs.nanolett.0c01082

In Situ Formation of Free-Standing Single-Atom-Thick Antiferromagnetic Chromium Membranes

Huy Quang Ta, Qin Xiao Yang, Shuyuan Liu, A. Bachmatiuk, Rafael G. Mendes, Thomas Gemming, Yu Liu, Lijun Liu, Klaudia Tokarska, Rajen B. Patel, Jin Ho Choi, Mark H. Rümmeli

extern

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Compared to van der Waals two-dimensional (2D) layers with lateral covalent bonds, metallic bonding systems favor close-packed structures, and thus, free-standing 2D metals have remained, for the most part, elusive. However, a number of theoretical studies suggest a number of metals can exist as 2D materials and a few early experiments support this notion. Here we demonstrate free-standing single-atom-thick crystalline chromium (Cr) suspended membranes using aberration-corrected transmission electron microscopy and image simulations. Density functional theory studies confirm the 2D Cr membranes have an antiferromagnetic ground state making them highly attractive for spintronic applications. Moreover, the work also helps consolidate the existence of a new family of 2D metal layers.

Original language	English
Pages (from-to)	4354-4361
Number of pages	8
Journal	Nano Letters
Volume	20
Issue number	6
DOIs	https://doi.org/10.1021/acs.nanolett.0c01082
Publication status	Published - 10 Jun 2020
Externally published	Yes

Keywords

2D metals
In situ TEM
antiferromagnetic
chromium
free-standing single-atom-thick membrane
single-element 2D

Access to Document

10.1021/acs.nanolett.0c01082

Cite this

@article{8fe5860b74f24212ae1a71333b75eb85,

title = "In Situ Formation of Free-Standing Single-Atom-Thick Antiferromagnetic Chromium Membranes",

abstract = "Compared to van der Waals two-dimensional (2D) layers with lateral covalent bonds, metallic bonding systems favor close-packed structures, and thus, free-standing 2D metals have remained, for the most part, elusive. However, a number of theoretical studies suggest a number of metals can exist as 2D materials and a few early experiments support this notion. Here we demonstrate free-standing single-atom-thick crystalline chromium (Cr) suspended membranes using aberration-corrected transmission electron microscopy and image simulations. Density functional theory studies confirm the 2D Cr membranes have an antiferromagnetic ground state making them highly attractive for spintronic applications. Moreover, the work also helps consolidate the existence of a new family of 2D metal layers.",

keywords = "2D metals, In situ TEM, antiferromagnetic, chromium, free-standing single-atom-thick membrane, single-element 2D",

author = "Ta, {Huy Quang} and Yang, {Qin Xiao} and Shuyuan Liu and A. Bachmatiuk and Mendes, {Rafael G.} and Thomas Gemming and Yu Liu and Lijun Liu and Klaudia Tokarska and Patel, {Rajen B.} and Choi, {Jin Ho} and R{\"u}mmeli, {Mark H.}",

year = "2020",

month = jun,

day = "10",

doi = "10.1021/acs.nanolett.0c01082",

language = "English",

volume = "20",

pages = "4354--4361",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "6",

}

TY - JOUR

T1 - In Situ Formation of Free-Standing Single-Atom-Thick Antiferromagnetic Chromium Membranes

AU - Ta, Huy Quang

AU - Yang, Qin Xiao

AU - Liu, Shuyuan

AU - Bachmatiuk, A.

AU - Mendes, Rafael G.

AU - Gemming, Thomas

AU - Liu, Yu

AU - Liu, Lijun

AU - Tokarska, Klaudia

AU - Patel, Rajen B.

AU - Choi, Jin Ho

AU - Rümmeli, Mark H.

PY - 2020/6/10

Y1 - 2020/6/10

N2 - Compared to van der Waals two-dimensional (2D) layers with lateral covalent bonds, metallic bonding systems favor close-packed structures, and thus, free-standing 2D metals have remained, for the most part, elusive. However, a number of theoretical studies suggest a number of metals can exist as 2D materials and a few early experiments support this notion. Here we demonstrate free-standing single-atom-thick crystalline chromium (Cr) suspended membranes using aberration-corrected transmission electron microscopy and image simulations. Density functional theory studies confirm the 2D Cr membranes have an antiferromagnetic ground state making them highly attractive for spintronic applications. Moreover, the work also helps consolidate the existence of a new family of 2D metal layers.

AB - Compared to van der Waals two-dimensional (2D) layers with lateral covalent bonds, metallic bonding systems favor close-packed structures, and thus, free-standing 2D metals have remained, for the most part, elusive. However, a number of theoretical studies suggest a number of metals can exist as 2D materials and a few early experiments support this notion. Here we demonstrate free-standing single-atom-thick crystalline chromium (Cr) suspended membranes using aberration-corrected transmission electron microscopy and image simulations. Density functional theory studies confirm the 2D Cr membranes have an antiferromagnetic ground state making them highly attractive for spintronic applications. Moreover, the work also helps consolidate the existence of a new family of 2D metal layers.

KW - 2D metals

KW - In situ TEM

KW - antiferromagnetic

KW - chromium

KW - free-standing single-atom-thick membrane

KW - single-element 2D

UR - https://www.mendeley.com/catalogue/7cffdd45-ca2a-3cbb-8f3f-44c1f59fc7fe/

U2 - 10.1021/acs.nanolett.0c01082

DO - 10.1021/acs.nanolett.0c01082

M3 - Article

C2 - 32357000

SN - 1530-6984

VL - 20

SP - 4354

EP - 4361

JO - Nano Letters

JF - Nano Letters

IS - 6

ER -

In Situ Formation of Free-Standing Single-Atom-Thick Antiferromagnetic Chromium Membranes

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this