Giant magnetic anisotropy of a 5d transition metal decorated two-dimensional polyphthalocyanine framework

Wang, Peng; Hu, Jun; Huang, Xiaoming; Zhao, Jijun

doi:10.1039/c5tc04402b

Cited by 38 publications

(24 citation statements)

References 49 publications

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“…For other properties like magnetism which have been studied considerably, we refer the reader to existing literatures. 29,[52][53][54][55][56][57][58]…”

Section: Electron Localization In Typical Building Unitsmentioning

confidence: 99%

Electron delocalization in single-layer phthalocyanine-based covalent organic frameworks: a first principle study

Pham

Tran

et al. 2019

RSC Adv.

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“…For other properties like magnetism which have been studied considerably, we refer the reader to existing literatures. 29,[52][53][54][55][56][57][58]…”

Section: Electron Localization In Typical Building Unitsmentioning

confidence: 99%

Electron delocalization in single-layer phthalocyanine-based covalent organic frameworks: a first principle study

Pham

Tran

et al. 2019

RSC Adv.

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“…Unlike graphene, the symmetry of a single layer is not hexagonal, but rather D 4h . This unique structure makes 2D PPC highly promising material for a wide variety of technological applications, including catalysis, [4] memristors, [5] magnetic storage devices, [6] spintronics, [7] advanced fuel cells, [8] optoelectronics [9] and others. A natural question to ask is why these materials are not widely used yet?…”

Section: Introductionmentioning

confidence: 99%

“…PPCs are promising candidates for potential applications in spintronics and future magnetic storage devices. [6][7]49] Cho et al [49] theoretically demonstrated that the chromium porphyrin network possesses a half-metallic behavior when the Cr atom spins lie in a parallel alignment. Since the Cr atoms are separated by a large distance (>8 Å), the spin coupling is small and thus their directions can be simply controlled by an external magnetic field.…”

Section: Spintronicsmentioning

confidence: 99%

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Recent Advances in 2D Polymeric Phthalocyanines: Synthesis, Characterization, Applications and New Challenges

Korepanov¹,

Sedlovets²

2019

MHC

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This article is dedicated to Prof. Dieter Wöhrle, whose works for a long time have been the highest standard and a source of inspiration for us 2D polyphthalocyanines (PPCs) are actively studied as advanced materials for new generation energy and microelectronics. Some time ago such compounds were dubbed "just a dream of synthetic chemists", what was a perfect reflection of, on the one hand, high promise, and, on the other hand, experimental difficulties faced with the 2D polymers. Despite a long history of PPCs (since late 1950s), it was shown recently that in many works the reaction products were misinterpreted , and the studied compounds should be assigned to a low degree of the polymerization. Recent years, the discovery of graphene has inspired a new wave of interest to PPCs. From the graphene point of view, the questions are: whether we can make other graphene-like materials with modified properties? Can we use metal atoms to tune its electronic properties? Can we make a magnetic 2D material? From the polymer chemistry point of view, the major problem is why the common synthetic approaches and characterization techniques didn't work for this polymer as expected? And how to identify the reaction products? This review covers evolution of the synthetic approaches, establishment of the reliable characterization techniques, as well as the promising applications of 2D PPCs and the "new dreams" in science and technology of these materials.

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“…The outermost atom of these vertical dimer could generate a giant MAE as large as 100 meV and might be increased to 150 meV with the tuning of external electrical fields. These discoveries lead to a new research field of building magnetic recording devices at the atomic scale [43][44][45][46][47][48][49][50][51][52][53].…”

Section: Introductionmentioning

confidence: 99%

Giant magnetic anisotropy of heavyp-elements on high-symmetry substrates: a new paradigm for supported nanostructures

et al. 2018

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Nanostructures with giant magnetic anisotropy energies (MAEs) are desired in designing miniaturized magnetic storage and quantum computing devices. Previous works focused mainly on materials or elements with d electrons. Here, by taking Bi-X(X = In, Tl, Ge, Sn, Pb) adsorbed on nitrogenized divacancy of graphene and Bi atoms adsorbed on MgO (100) as examples, through ab initio and model calculations, we propose that special p-element dimers and single-adatoms on symmetry-matched substrates possess giant atomic MAEs of 72-200 meV, and has room temperature structural stability. The huge MAEs originate from the p-orbital degeneracy around the Fermi level in a symmetrymatched surface ligand field and the lifting of this degeneracy when spin-orbit interaction (SOI) is taken into account. Especially, we developed a simplified quantum mechanical model for the design principles of giant MAEs of supported magnetic adatoms and dimers. Thus, our discoveries and mechanisms provide a new paradigm to design giant atomic MAE of p electrons in supported nanostructures.

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Giant magnetic anisotropy of a 5d transition metal decorated two-dimensional polyphthalocyanine framework

Abstract: Giant perpendicular magnetic anisotropy is found in a 5d transition-metal adatom decorated two dimensional (2D) polyphthalocyanine framework (TM@Pc) by means of first-principles calculations.

Cited by 38 publications

References 49 publications

Electron delocalization in single-layer phthalocyanine-based covalent organic frameworks: a first principle study

Electron delocalization in single-layer phthalocyanine-based covalent organic frameworks: a first principle study

Recent Advances in 2D Polymeric Phthalocyanines: Synthesis, Characterization, Applications and New Challenges

Giant magnetic anisotropy of heavyp-elements on high-symmetry substrates: a new paradigm for supported nanostructures

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