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We use the electrode-less time-resolved microwave conductivity (TRMC) technique to characterize spin-crossover (SCO) nanoparticles. We show that TRMC is a simple and accurate mean for simultaneously as-sessing the magnetic state of SCO…

Functionalized nanoparticles (NPs) are complex objects present in a variety of systems ranging from synthetic grafted nanoparticles to viruses. The morphology and number of the decorating groups can vary widely between systems. Thus, the…

Mesoscale and Nanoscale Physics · Physics 2023-03-22 Daniela Moreno-Chaparro , Nicolas Moreno , Florencio Balboa-Usabiaga , Marco Ellero

An important contribution to the thermoelectric and spin-caloric transport properties in magnetic materials at elevated temperatures is the formation of a spin-disordered state due to local moment fluctuations. This effect has not been…

Materials Science · Physics 2015-06-23 Roman Kováčik , Phivos Mavropoulos , Stefan Blügel

We studied the magnetic properties of self-assembled aggregates of BiFeO3 nanoparticles (~ 20-40 nm). The aggregates formed two different structures - one with limited and another with massive cross-linking - via `drying-mediated…

Mesoscale and Nanoscale Physics · Physics 2020-08-14 Sudipta Goswami , Aditi Sahoo , Dipten Bhattacharya , Ozgur Karci , P. K. Mohanty

Using large-scale molecular dynamics simulations, we investigate the scaling of morphological and contact mechanics properties of Al and Cu nanoparticles (NPs) physisorbed on suspended graphene. The characteristic linear size of a NP ranges…

Mesoscale and Nanoscale Physics · Physics 2026-05-20 Mykola Prodanov , Oleksii Khomenko

Electric conduction mechanisms are studied in the pressed nanoflake powder of the molybdenum-disulfide-oxide (MoSxOy) depending on their content and structure. The MoSxOy nanoflakes were prepared by reaction of (NH4)6Mo7O24 with thiourea in…

Structural, magnetic, and dielectric properties of Sm$_2$CoMnO$_6$ have been studied. X-ray diffraction and Rietveld analysis show that the sample crystallizes in the monoclinic structure with \textit{P2$_1$/n} space group. Magnetic study…

Strongly Correlated Electrons · Physics 2020-04-29 Ilyas Noor Bhatti , Imtiaz Noor Bhatti , Rabindra Nath Mahato , M. A. H. Ahsan

All-electric-controlled nonvolatile spin field-effect transistors (SFETs) based on two-dimensional (2D) multiferroic van der Waals (vdW) heterostructures hold great promise for advanced spintronics applications. However, their performance…

Materials Science · Physics 2025-10-02 B. Liu , X. Zhang , W. Hou , H. Feng , Zhengei Dai , Zhi-Xin Guo

Very recently, it was demonstrated explicitly that a zigzag graphene nanoribbon (GNR) exhibits a crossover of conductance from G0 to G0/2 with increasing the length (G0 = 2e2/h is the quantum of conductance) even at room-temperature…

Mesoscale and Nanoscale Physics · Physics 2015-10-22 Zhao-Dong Chu , Lin He

We study the transport properties of nanoscale superconducting (S) devices in which two superconducting electrodes are bridged by two parallel ferromagnetic (F) wires, forming an SFFS junction with a separation between the two wires less…

Superconductivity · Physics 2012-06-05 Madalina Colci , Kuei Sun , Nayana Shah , Smitha Vishveshwara , Dale J. Van Harlingen

We studied the exchange coupling and decoupling occurring in a nanocomposite spin system based on a 3D Heisenberg model by means of Monte Carlo numerical computation simulation. Different from conventional micromagnetism approach which…

Materials Science · Physics 2007-05-23 Y. Z. Shao , W. R. Zhong , T. Lan , R. H. Lee

Co$_2$C nanoparticles (NPs) are amongst transition metal carbides whose magnetic properties have not been well explored. A recent study by Nirmal Roy et al. [1] showed that a collection of Co$_2$C NPs exhibit an exchange bias (EB) effect…

Strongly Correlated Electrons · Physics 2023-09-25 Nirmal Roy , P C Mahato , Suprotim Saha , M. Telling , J. S. Lord , D T Adroja , S. S. Banerjee

We study the switching behavior of two spin-crossover molecules residing in a nanojunction device consisting of two closely spaced gold electrodes. The spin states are monitored through a real-time measurement of the resistance of the…

Mesoscale and Nanoscale Physics · Physics 2021-09-29 Philipp Stegmann , Alex Gee , Neil T. Kemp , Jürgen König

Rapidly developing science and technology demand new materials with versatile and promising properties for practical applications. In this context, pseudo-octahedral iron(II) spin crossover (SCO) complexes are particularly appealing - not…

Two-dimensional (2D) materials for their versatile band structures and strictly 2D nature have attracted considerable attention over the past decade. Graphene is a robust material for spintronics owing to its weak spin-orbit and hyperfine…

Mesoscale and Nanoscale Physics · Physics 2017-01-30 Kuei-Lin Chiu , Yang Xu

Here we analyze the electron transport properties of a device formed of two crossed graphene nanoribbons with zigzag edges (ZGNRs) in a spin state with total magnetization different from zero. While the ground state of ZGNRs has been shown…

Mesoscale and Nanoscale Physics · Physics 2025-01-15 Sofia Sanz , Géza Giedke , Daniel Sánchez-Portal , Thomas Frederiksen

Electrically manipulating the quantum properties of nano-objects, such as atoms or molecules, is typically done using scanning tunnelling microscopes and lateral junctions. The resulting nanotransport path is well established in these model…

The recently obtained spin-crossover nanoparticles are possible candidates for applications in the recording media industry as materials for data storage, or as pressure and temperature sensors. For these applications the intermolecular…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 Laurentiu Stoleriu , Alexandru Stancu , Pradip Chakraborty , Andreas Hauser , Cristian Enachescu

The central question in the field of 2D materials is how a material behaves when it is patterned at nanometer scale with different edge geometries. Due to the anisotropy inherent in the puckered structure, black phosphorene nanostructures…

Mesoscale and Nanoscale Physics · Physics 2019-12-13 Yi Ren , Pu Liu , Benliang Zhou , Xiaoying Zhou , Guanghui Zhou

The progress of magnonics ultimately depends on material platforms that offer precise control of spin waves propagation. Here, we put forward a chemical strategy to create locally tunable magnonic crystals by integrating switchable…

Materials Science · Physics 2025-12-22 Andrei Shumilin , Sourav Dey , Denisa Coltuneac , Laurentiu Stoleriu , José J. Baldoví