Interlayer ferromagnetic coupling and enhanced magnetism by biaxial strain in MnBi2Te4/VBi2Te4 heterojunction

Verdazyl-nitroxide diradicals were synthesized using the palladium-catalyzed cross-coupling reaction of the corresponding iodoverdazyls with a nitronyl nitroxide-2-ide gold(I) complex with high yields (up to 82%). The synthesized diradicals were found to be highly thermally stable and have a singlet (DEST » -64 cm–1) or triplet ground state (DEST ³ 25 and 100 cm–1), depending on which canonical hydrocarbon diradical type they belong to. Upon crystallization, triplet diradicals form unique one-dimensional (1D) spin S = 1 chains of organic diradicals with intrachain ferromagnetic coupling of J′/kB from 3 to 6 K.

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The localized electron: magnetic properties

10.1093/oso/9780198814597.003.0002 ◽

2018 ◽

Author(s):

Jean-Pierre Launay ◽

Michel Verdaguer

Keyword(s):

Single Molecule ◽

Model Systems ◽

Ferromagnetic Coupling ◽

Single Chain ◽

Single Molecule Magnets ◽

Magnetic Systems ◽

Orbital Interactions ◽

Prussian Blue Analogues ◽

Mononuclear Complexes

After preliminaries about electron properties, and definitions in magnetism, one treats the magnetism of mononuclear complexes, in particular spin cross-over, showing the role of cooperativity and the sensitivity to external perturbations. Orbital interactions and exchange interaction are explained in binuclear model systems, using orbital overlap and orthogonality concepts to explain antiferromagnetic or ferromagnetic coupling. The phenomenologically useful Spin Hamiltonian is defined. The concepts are then applied to extended molecular magnetic systems, leading to molecular magnetic materials of various dimensionalities exhibiting bulk ferro- or ferrimagnetism. An illustration is provided by Prussian Blue analogues. Magnetic anisotropy is introduced. It is shown that in some cases, a slow relaxation of magnetization arises and gives rise to appealing single-ion magnets, single-molecule magnets or single-chain magnets, a route to store information at the molecular level.

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Strain tuned high thermal conductivity in boron phosphide at nanometer length scales – a first-principles study

Physical Chemistry Chemical Physics ◽

10.1039/d0cp03690k ◽

2020 ◽

Vol 22 (36) ◽

pp. 20914-20921 ◽

Cited By ~ 1

Author(s):

Rajmohan Muthaiah ◽

Jivtesh Garg

Keyword(s):

Thermal Conductivity ◽

First Principles ◽

High Thermal Conductivity ◽

Biaxial Strain ◽

Length Scales ◽

First Principles Study ◽

Boron Phosphide

We report novel pathways to significantly enhance the thermal conductivity at nanometer length scales in boron phosphide through biaxial strain.

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A First-Principle Study of Monolayer Transition Metal Carbon Trichalcogenides

Journal of Superconductivity and Novel Magnetism ◽

10.1007/s10948-021-05980-1 ◽

2021 ◽

Author(s):

Muhammad Yar Khan ◽

Yan Liu ◽

Tao Wang ◽

Hu Long ◽

Miaogen Chen ◽

...

Keyword(s):

Phonon Dispersion ◽

Magnetic Ordering ◽

Dimensional Structure ◽

First Principle ◽

Two Dimensional ◽

Biaxial Strain ◽

Half Metallic ◽

First Principle Calculations ◽

Potential Applications ◽

External Strain

AbstractMonolayer MnCX3 metal–carbon trichalcogenides have been investigated by using the first-principle calculations. The compounds show half-metallic ferromagnetic characters. Our results reveal that their electronic and magnetic properties can be altered by applying uniaxial or biaxial strain. By tuning the strength of the external strain, the electronic bandgap and magnetic ordering of the compounds change and result in a phase transition from the half-metallic to the semiconducting phase. Furthermore, the vibrational and thermodynamic stability of the two-dimensional structure has been verified by calculating the phonon dispersion and molecular dynamics. Our study paves guidance for the potential applications of these two mono-layers in the future for spintronics and straintronics devices.

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Atomic-layered MoS2 on SiO2 under high pressure: Bimodal adhesion and biaxial strain effects

Physical Review Materials ◽

10.1103/physrevmaterials.1.024002 ◽

2017 ◽

Vol 1 (2) ◽

Cited By ~ 9

Author(s):

R. S. Alencar ◽

K. D. A. Saboia ◽

D. Machon ◽

G. Montagnac ◽

V. Meunier ◽

...

Keyword(s):

High Pressure ◽

Biaxial Strain ◽

Strain Effects ◽

Layered Mos2

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A novel and facile route to in-situ formation of composites with dual coupling interactions for considerable millimeter-wave absorption performance

Journal of Materials Chemistry C ◽

10.1039/d1tc03398k ◽

2021 ◽

Author(s):

Chuyang Liu ◽

Tao Jiang ◽

Tian Gao ◽

Guangxian Xia ◽

Yufan Cao ◽

...

Keyword(s):

Millimeter Wave ◽

Exchange Coupling ◽

Ferromagnetic Coupling ◽

Soft Magnetic ◽

Magnetic Exchange ◽

Magnetic Exchange Coupling ◽

Absorption Performance ◽

In Situ Formation ◽

Facile Route

It is well known that both hard/soft magnetic exchange-coupling and ferroelectric-ferromagnetic coupling could facilitate the microwave absorption behavior. Herein, we propose the BaZrxFe12-xO19/Fe3O4/BaZrO3 composites to integrate the advantages of the...

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Breaking atomic-level ordering via biaxial strain in functional oxides: A DFT study

Journal of Applied Physics ◽

10.1063/5.0039420 ◽

2021 ◽

Vol 129 (9) ◽

pp. 095301

Author(s):

Kanishk Rawat ◽

Dillon D. Fong ◽

Dilpuneet S. Aidhy

Keyword(s):

Atomic Level ◽

Dft Study ◽

Biaxial Strain ◽

Functional Oxides

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Biaxial strain, electric field and interlayer distance-tailored electronic structure and magnetic properties of two-dimensional g-C3N4/Li-adsorbed Cr2Ge2Te6 van der Waals heterostructures

Physical Chemistry Chemical Physics ◽

10.1039/d1cp00003a ◽

2021 ◽

Vol 23 (10) ◽

pp. 6171-6181

Author(s):

Yaoqi Gao ◽

Baozeng Zhou ◽

Xiaocha Wang

Keyword(s):

Magnetic Properties ◽

Electronic Structure ◽

Electric Field ◽

Van Der Waals ◽

Interlayer Distance ◽

Two Dimensional ◽

Biaxial Strain ◽

Van Der Waals Heterostructures

It is found that the biaxial strain, electric field and interlayer distance can effectively modulate the electronic structure and magnetic properties of two-dimensional van der Waals heterostructures.

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