| Full text | |
| Author(s): Show less - |
Puthirath, Anand B.
[1]
;
Balan, Aravind Puthirath
[2, 3]
;
Oliveira, Eliezer F.
[1, 4, 5]
;
Sreepal, Vishnu
[2, 3]
;
Robles Hernandez, Francisco C.
[1, 6]
;
Gao, Guanhui
[1]
;
Chakingal, Nithya
[1]
;
Sassi, Lucas M.
[1]
;
Thibeorchews, Prasankumar
[1]
;
Costin, Gelu
[7]
;
Vajtai, Robert
[1]
;
Galvao, Douglas S.
[1, 4, 5]
;
Nair, Rahul R.
[2, 3]
;
Ajayan, Pulickel M.
[1]
Total Authors: 14
|
| Affiliation: | [1] Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 - USA
[2] Univ Manchester, Dept Chem Engn & Analyt Sci CEAS, Manchester M13 9PL, Lancs - England
[3] Univ Manchester, Natl Graphene Inst NGI, Manchester M13 9PL, Lancs - England
[4] Univ Estadual Campinas, UNICAMP, Grp Organ Solids & New Mat, Gleb Wataghin Inst Phys, BR-13083970 Campinas, SP - Brazil
[5] Univ Estadual Campinas, UNICAMP, Ctr Computat Engn & Sci CCES, BR-13083970 Campinas, SP - Brazil
[6] Univ Houston, Mech Engn Technol Program, Dept Engn Technol, Coll Technol, Houston, TX 77204 - USA
[7] Rice Univ, Dept Earth Environm & Planetary Sci, Houston, TX 77005 - USA
Total Affiliations: 7
|
| Document type: | Journal article |
| Source: | Journal of Physical Chemistry C; v. 125, n. 34, p. 18927-18935, SEP 2 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
There has been no experimental evidence for ferromagnetic ordering in isotropic atomically thin two-dimensional crystals, until a bilayer Cr2Ge2Te6 and a three-atom thick monolayer CrI3 is shown to retain ferromagnetic ordering at finite temperatures. Here, we demonstrate successful isolation of a nonvan der Waals-type ultrathin nanosheet of FeS2 derived from naturally occurring pyrite mineral (FeS2) by means of liquid-phase exfoliation. Structural characterizations imply that (111)-oriented sheets are predominant and are supported theoretically by means of density functional theory surface energy calculations. Spin-polarized density theory calculations further predicted that (111)-oriented three-atom thick pyrite sheets have a stable ferromagnetic ground state different from their diamagnetic bulk counterparts. This theoretical finding is evaluated by experimentally employing low-temperature superconducting quantum interference device measurements, and an anomalous ferromagnetic kind of behavior is observed. (AU) | |
| FAPESP's process: | 16/18499-0 - Investigation on the structural, mechanical and functional properties of carbon-based nanostructures |
| Grantee: | Eliezer Fernando de Oliveira |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 13/08293-7 - CCES - Center for Computational Engineering and Sciences |
| Grantee: | Munir Salomao Skaf |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 19/07157-9 - DESIGNING NEW 3D STRUCTURES FROM ZEOLITE TEMPLATES FOR 3D PRINTING APPLICATIONS |
| Grantee: | Eliezer Fernando de Oliveira |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |