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The discovery of archetypal two-dimensional (2D) materials provides enormous opportunities in both fundamental breakthroughs and device applications, as evident by the research booming in graphene, atomically thin transition-metal…

Mesoscale and Nanoscale Physics · Physics 2018-11-27 Chenqiang Hua , Feng Sheng , Qifeng Hu , Zhu-An Xu , Yunhao Lu , Yi Zheng

Three different CrNi2 complexes were synthesized. They differ from each other by the nature of the terminal ligand and of the counter anion : [Cr(CN)4[CN-Ni(tetren)]2]Cl, that crystallizes in two different crystallographic systems and…

Mesoscale and Nanoscale Physics · Physics 2009-09-29 Raluca Tiron , Wolfgang Wernsdorfer , Fabien Tuyeras , Ariane Scuiller , Valerie Marvaud , Michel Verdaguer

Recently a new class of quantum magnets, the so-called breathing pyrochlore spin systems, have attracted much attention due to their potential to host exotic emergent phenomena. Here, we present magnetometry, heat capacity, thermal…

Magnetic molecules are a class of compounds that is also investigated in view of their magnetocaloric properties. The isothermal entropy change and the adiabatic temperature change are key figures of merit for magnetocaloric performance.…

Chemical Physics · Physics 2026-02-23 D. Westerbeck , J. Schnack

MXene, the class of two-dimensional materials, has been found to be useful as potential electrode materials for electrochemical capacitors. Although experimental investigation on the electrochemical performances of a few MXenes have been…

Materials Science · Physics 2023-06-07 Mndira Das , Subhradip Ghosh

In the last years there has been a great interest in magnetic systems formed by a cluster of transition metal ions covalently bonded via superexchange bridges, embedded in a large organic molecule. Following the synthesis and the structural…

Materials Science · Physics 2007-05-23 F. Borsa , A. Lascialfari , Y. Furukawa

Binary transition metal nitride with a graphene-like structure and strong magnetic properties is rare. Based on the first-principles calculations, we design two kinds of $M$N$_4$ ($M$ =transition metal) monolayers, which are transition…

Materials Science · Physics 2024-06-19 Shuo Zhang , Panjun Feng , Dapeng Liu , Hongfen Wu , Miao Gao , Tongshuai Xu , Xun-Wang Yan , Z. Y. Xie

In the last years there has been a great interest in magnetic systems formed by a cluster of transition metal ions covalently bonded via superexchange bridges, embedded in a large organic molecule. Following the synthesis and the structural…

Materials Science · Physics 2007-05-23 F. Borsa , A. Lascialfari , Y. Furukawa

The magnetic susceptibility and magnetization of two new layered S=1/2 Heisenberg antiferromagnets with moderate exchange are reported. The two isostructural compounds, (2-amino-5-chloropyridinium)2CuBr4 ((5CAP)2CuBr4) and…

Materials Science · Physics 2009-11-07 F. M. Woodward , A. S. Albrecht , C. M. Wynn , C. P. Landee , M. M. Turnbull

The quadruple Calcium manganite (CaMn7O12) is a multiferroic material that exhibits a giant magnetically-induced ferroelectric polarization which makes it very interesting for magnetoelectric applications. Here, we report the Raman…

Strongly Correlated Electrons · Physics 2019-01-16 C. Toulouse , C. Martin , M-A. Measson , Y. Gallais , A. Sacuto , M. Cazayous

Correlated materials with competing spin-orbit and crystal-field interactions can host composite spin-orbital magnons that are highly susceptible to structural and electronic perturbations, enabling the control of magnetic dynamics beyond…

We devise a formalism to investigate in a systematic way the spectroscopic magnetic excitations in molecular magnets. This consists in introducing a bilinear spin Hamiltonian that allows for discrete coupling parameters accounting for…

Strongly Correlated Electrons · Physics 2018-05-04 M. Georgiev , H. Chamati

The single molecule magnet (SMM) bis(phthalocyaninato)terbium (III) (TbPc$_2$) has attracted steady research attention as an exemplar system for realizing molecule-based spin electronics. In this paper, we report on the spontaneous…

Magnetic molecules possess a high potential as building blocks for the design of spintronic devices. Moreover, the use of molecular materials opens the way for the controlled use of bottom-up, e.g. supramolecular, processing techniques…

Mesoscale and Nanoscale Physics · Physics 2013-04-25 Matias Urdampilleta , Svetlana Klyatskaya , Jean-Pierre Cleuziou , Mario Ruben , Wolfgang Wernsdorfer

The electronic structure is found to be understandable in terms of free-atom term values and universal interorbital coupling parameters, since self-consistent tight-binding calculations indicate that Coulomb shifts of the d-state energies…

Materials Science · Physics 2009-11-13 Walter A. Harrison

The series of magnetic rare earth pyrochlore stannates R2Sn2O7 (R = rare earth, except Ce and Pm) have been investigated by powder susceptibility measurements down to T =1.8 K. The results are compared to results for the analogous titanate…

Materials Science · Physics 2009-11-07 V. Bondah-Jagalu , S. T. Bramwell

The notion of artifical atom relies on the capability to change the number of carriers one by one in semiconductor quantum dots, and the resulting changes in their electronic structure. Organic molecules with transition metal atoms that…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 J. Fernandez-Rossier , Ramon Aguado

Materials that change their magnetic properties in response to the external stimuli have long been of interest for their potential applicability in magnetic storage device, spintronics and smart magnetic materials. Organic materials are…

Materials Science · Physics 2018-02-09 Yan Cui , Huiping Zhu , Lei Wang , Bo Li , Zhengsheng Han , Jiajun Luo

We explore theoretically the spin transport in nanostructures consisting of a gold quantum dot bridging nonmagnetic electrodes and two Mn12-Ph single molecule magnets (SMMs) that are thiol-bonded to the dot but are not in direct contact…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Fatemeh Rostamzadeh Renani , George Kirczenow

We investigate single molecule magnet transistors (SMMTs) with ligands that support transport resonances. We find the lowest unoccupied molecular orbitals of Mn12-benzoate SMMs (with and without thiol or methyl-sulfide termination) to be on…

Mesoscale and Nanoscale Physics · Physics 2011-11-23 Fatemeh Rostamzadeh Renani , George Kirczenow
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