Room-temperature superparamagnetism due to giant magnetic anisotropy in Mo S defected single-layer MoS2

Journal of Physics. Condensed Matter : an Institute of Physics Journal
M A Khan, Michael N Leuenberger

Abstract

Room-temperature superparamagnetism due to a large magnetic anisotropy energy (MAE) of a single atom magnet has always been a prerequisite for nanoscale magnetic devices. Realization of two dimensional (2D) materials such as single-layer (SL) MoS2, has provided new platforms for exploring magnetic effects, which is important for both fundamental research and for industrial applications. Here, we use density functional theory (DFT) to show that the antisite defect (Mo S ) in SL MoS2 is magnetic in nature with a magnetic moment μ of  ∼2 [Formula: see text] and, remarkably, exhibits an exceptionally large atomic scale MAE [Formula: see text] of  ∼500 meV. Our calculations reveal that this giant anisotropy is the joint effect of strong crystal field and significant spin-orbit coupling (SOC). In addition, the magnetic moment μ can be tuned between 1 [Formula: see text] and 3 [Formula: see text] by varying the Fermi energy [Formula: see text], which can be achieved either by changing the gate voltage or by chemical doping. We also show that MAE can be raised to  ∼1 eV with n-type doping of the MoS2:Mo S sample. Our systematic investigations deepen our understanding of spin-related phenomena in SL MoS2 and could provide a route to nan...Continue Reading

References

Nov 30, 1998·Science·G A Prinz
Jan 5, 2001·Nature·H OhnoK Ohtani
Apr 12, 2001·Nature·M N Leuenberger, D Loss
Mar 17, 2010·Nano Letters·Andrea SplendianiFeng Wang
Jan 15, 2011·Physical Review Letters·Kin Fai MakTony F Heinz
Jan 15, 2011·Physical Review Letters·Wei HanR K Kawakami
Aug 27, 2011·Physical Review Letters·Wei Han, R K Kawakami
Nov 15, 2011·ACS Nano·Branimir RadisavljevicAndras Kis
Jan 27, 2012·Nano Letters·Yijin ZhangYoshihiro Iwasa
Oct 9, 2012·ACS Nano·Dominik Lembke, Andras Kis
Aug 13, 2013·Nano Letters·Britton W H BaugherPablo Jarillo-Herrero
May 9, 2014·Science·Ileana G RauHarald Brune
May 31, 2014·Science·Alexander Ako Khajetoorians, Jens Wiebe
Jun 24, 2014·Nanoscale·Jing-Jing ChenZhi-Min Liao
Sep 6, 2014·Physical Review Letters·M H D GuimarãesB J van Wees
Oct 14, 2014·Nano Letters·Lingming YangPeide D Ye
Feb 20, 2015·Nature Communications·Jinhua HongZe Zhang
Jan 2, 2016·Physical Review Letters·Xuedong OuHua Wu
Apr 16, 2016·Science·F DonatiH Brune
Mar 10, 2017·Nature·Fabian D NattererChristopher P Lutz

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Citations

Dec 17, 2021·Nature Communications·Katherine A CochraneBruno Schuler

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