Explanipedia

Germanene-based two-dimensional magnet with tunable properties Open

С. В. Еремеев, A. V. Matetskiy, A. Barla, Paolo Moras, C. Carbone , et al. · 2025

Germanene-Based Two-Dimensional Magnet with Tunable Properties Open

A. V. Matetskiy, A. Barla, Paolo Moras, C. Carbone, Valeria Milotti , et al. · 2025

Magnetic order engineering in two-dimensional Dirac systems is of great interest for theoretical and technological exploration. Up to now, the experimental advances in this field mostly concerned graphene monolayers. Here, we report a comp…

Mastering the growth of antimonene on Bi2Se3: Strategies and insights Open

R. Flammini, Conor Hogan, Stefano Colonna, F. Ronci, Mauro Satta , et al. · 2025

Antimonene, the two-dimensional phase of antimony, appears in two distinct allotropes when epitaxially grown on Bi2Se3: the puckered asymmetric washboard (α) and buckled honeycomb (β) bilayer structures. As-deposited antimony films exhibit…

Spin-Dependent Gap in Graphene on a Magnetic Substrate Open

Polina M. Sheverdyaeva, Gustav Bihlmayer, E. Cappelluti, D. Pacilè, F. Mazzola , et al. · 2024

We present a detailed analysis of the electronic properties of graphene/Eu/Ni(111). By using angle- and spin-resolved photoemission spectroscopy and ab initio calculations, we show that the intercalation of Eu in the graphene/Ni(111) inter…

Spin-selective evolution of the Zhang-Rice state in binary transition metal oxide MnO(001) film Open

Asish K. Kundu, Polina M. Sheverdyaeva, Paolo Moras, Krishnakumar S. R. Menon, Subhasish Mandal , et al. · 2024

Here, the Zhang-Rice (ZR) state is a strongly hybridized bound state formed by transition-metal and oxygen atoms. The spin fluctuations within the ZR state are known to play an important role in high-T_c superconductivity in cupr…

Giant Rashba-splitting of one-dimensional metallic states in Bi dimer lines on InAs(100) Open

Polina M. Sheverdyaeva, Gustav Bihlmayer, S. Modesti, Vitaliy Feyer, Matteo Jugovac , et al. · 2024

Experimental electronic structure and quasi 1D spin texture of Bi dimer lines on InAs(100) displaying giant Rashba parameter.

Spin Selective Evolution of Zhang-Rice State in Binary Transition Metal Oxide Open

Asish K. Kundu, Polina M. Sheverdyaeva, Paolo Moras, Krishnakumar S. R. Menon, Subhasish Mandal , et al. · 2023

The Zhang-Rice (ZR) state is a strongly hybridized bound state formed by the transition metal and oxygen atoms. The spin-fluctuations within the ZR state are known to play an important role in high-$T_\mathrm{c}$ superconductivity in cupra…

Giant and Tunable Out-of-Plane Spin Polarization of Topological Antimonene Open

Polina M. Sheverdyaeva, Conor Hogan, Gustav Bihlmayer, Jun Fujii, I. Vobornik , et al. · 2023

Topological insulators are bulk insulators with metallic and fully spin-polarized surface states displaying Dirac-like band dispersion. Due to spin-momentum locking, these topological surface states (TSSs) have a predominant in-plane spin …

Anomalous Concentration Dependence of Surface Tension and Concentration-Concentration Correlation Functions of Binary Non-Electrolyte Solutions Open

C. Carbone, Eduardo Guzmán, Ramón G. Rubio · 2023

The concentration dependence of the surface tension of several binary mixtures of non-electrolytes has been measured at 298.15 K. The mixtures have been chosen since they presented a so-called “W-shape” concentration dependence of the exce…

Energy-overlap of the Dirac surface state with bulk bands in Open

С. В. Еремеев, O. De Luca, Polina M. Sheverdyaeva, L. Ferrari, A. V. Matetskiy , et al. · 2023

Topological insulators in which the Fermi level is in the bulk gap and intersects only a topological surface state (the Dirac cone) are of special interest in the current research. In the last decades, a fine-tuning of the chemical composi…

Interplay between magnetic order and electronic band structure in ultrathin GdGe2 metalloxene films Open

A. V. Matetskiy, Valeria Milotti, Polina M. Sheverdyaeva, Paolo Moras, C. Carbone , et al. · 2023

Small uncompensated magnetic moment arises due to hybridization of the Gd and Ge orbitals in the 2D AFM system with broken inversion symmetry.

Dilational Rheology of Fluid/Fluid Interfaces: Foundations and Tools Open

Eduardo Guzmán, Armando Maestro, C. Carbone, Francisco Ortega, Ramón G. Rubio · 2022

Fluid/fluid interfaces are ubiquitous in science and technology, and hence, the understanding of their properties presents a paramount importance for developing a broad range of soft interface dominated materials, but also for the elucidat…

One-dimensional Rashba states with unconventional spin texture in Bi chains Open

Polina M. Sheverdyaeva, D. Pacilè, D. Topwal, Unnikrishnan Manju, M. Papagno , et al. · 2022

Spin-polarized electrons confined in low-dimensional structures are of high interest for spintronics applications. Here, in this study, we investigate the electronic structure of an ordered array of Bi monomer and dimer chains on the Ag(11…

Slow Magnetic Relaxation of Dy Adatoms with In-Plane Magnetic Anisotropy on a Two-Dimensional Electron Gas Open

V. Bellini, S. Rusponi, Jindřich Kolorenč, Sanjoy Kr Mahatha, Miguel A. Valbuena , et al. · 2022

We report on the magnetic properties of Dy atoms adsorbed on the (001) surface of SrTiO₃. X-ray magnetic circular dichroism reveals slow relaxation of the Dy magnetization on a time scale of about 800 s at 2.5 K, unusually assoc…

Effects of Oil Phase on the Inversion of Pickering Emulsions Stabilized by Palmitic Acid Decorated Silica Nanoparticles Open

Andrés González González, Natalia Sánchez Arribas, Eva Santini, José Luis Rodríguez Villafuerte, C. Carbone , et al. · 2022

Pickering emulsions stabilized by the interaction of palmitic acid (PA) and silica nanoparticles (SiNPs) at the water/oil interface have been studied using different alkane oil phases. The interaction of palmitic acid and SiNPs has a stron…

Doping induced band renormalization in 122-type Fe-based superconductor Open

Ram Prakash Pandeya, Sawani Datta, Anup Pradhan Sakhya, Tanusree Saha, G. De Ninno , et al. · 2022

We study the electronic structure of a superconducting composition of 122-type Fe-based pnictide material, CaFe 1.9 Co 0.1 As 2 employing high resolution angle resolved photoemission spectroscopy technique. The experimental results exhibit…

Surface states in noncentrosymmetric superconductor BiPd Open

A. Pramanik, Ram Prakash Pandeya, D. V. Vyalikh, Alexander Generalov, Paolo Moras , et al. · 2022

BiPd is a noncentrosymmetric superconductor with Dirac-like surface states on both (010) and faces. The Dirac cone on (010) surface is intense and appears at 0.66 eV binding energy. These states have dra…

Emergence of well-screened states in a superconducting material of the family Open

Ram Prakash Pandeya, Anup Pradhan Sakhya, Sawani Datta, Tanusree Saha, G. De Ninno , et al. · 2021

Coupling among conduction electrons (e.g. Zhang-Rice singlet) are often\nmanifested in the core level spectra of exotic materials such as cuprate\nsuperconductors, manganites, etc. These states are believed to play key roles\nin the ground…

Reference plane for the electronic states in thin films on stepped surfaces Open

Paolo Moras, Tevfik Onur Menteş, Frederik Schiller, L. Ferrari, D. Topwal , et al. · 2021

The question on whether there exists a unique photoelectron reference plane for a stepped solid surface is discussed on the basis of angle-resolved photoelectron spectroscopy data for Ag films grown on Pt(997). Different step morphologies …

Dirac states in the noncentrosymmetric superconductor BiPd Open

A. Pramanik, Ram Prakash Pandeya, D. V. Vyalikh, Alexander Generalov, Paolo Moras , et al. · 2021

Quantum materials having Dirac fermions in conjunction with superconductivity is believed to be the candidate materials to realize exotic physics as well as advanced technology. Angle resolved photoemission spectroscopy (ARPES), a direct p…

Topologization of β-antimonene on Bi2Se3 via proximity effects Open

Kris Holtgrewe, Sanjoy Kr Mahatha, Polina M. Sheverdyaeva, Paolo Moras, R. Flammini , et al. · 2020

Insight into the electronic structure of semiconducting and Open

С. В. Еремеев, M. Papagno, I. Grimaldi, Oreste De Luca, L. Ferrari , et al. · 2020

Metal monochalcogenides (MX) have recently been rediscovered as two-dimensional materials with electronic properties highly dependent on the number of layers. Although some intriguing properties appear in the few-layer regime, the carrier …

Low-temperature insulating phase of the surface Open

S. Modesti, Polina M. Sheverdyaeva, Paolo Moras, C. Carbone, Marco Caputo , et al. · 2020

We investigated the electronic structure of the Si(111)--7$\\times$7 surface\nbelow 20 K by scanning tunneling and photoemission spectroscopies and by\ndensity functional theory calculations. Previous experimental studies have\nquestioned …

Depth-resolved core level spectroscopy of noncentrosymmetric solid BiPd Open

A. Pramanik, Ram Prakash Pandeya, Khadiza Ali, Bhanu Joshi, Indranil Sarkar , et al. · 2020

Understanding exotic solids is a difficult task as interactions are often\nhidden by the symmetry of the system. Here, we study the electronic properties\nof a noncentrosymmetric solid, BiPd, which is a rare material exhibiting both\nsuper…

Temperature Driven Phase Transition at the Antimonene/Bi2Se3 van der Waals Heterostructure Open

Conor Hogan, Kris Holtgrewe, F. Ronci, Stefano Colonna, Simone Sanna , et al. · 2019

We report the discovery of a temperature-induced phase transition between the α and β structures of antimonene. When antimony is deposited at room temperature on bismuth selenide, it forms domains of α-antimonene having different orientati…

Indirect chiral magnetic exchange through Dzyaloshinskii–Moriya-enhanced RKKY interactions in manganese oxide chains on Ir(100) Open

Martin Schmitt, Paolo Moras, Gustav Bihlmayer, Ryan Cotsakis, Matthias Vogt , et al. · 2019

Towards microscopic control of the magnetic exchange coupling at the surface of a topological insulator Open

Philipp Rüßmann, Sanjoy Kr Mahatha, Paolo Sessi, Miguel A. Valbuena, Thomas Bathon , et al. · 2018

Magnetically doped topological insulators may produce novel states of electronic matter, where for instance the quantum anomalous Hall effect state can be realized. Pivotal to this goal is a microscopic control over the magnetic state, def…

Systematics of electronic and magnetic properties in the transition metal doped quantum anomalous Hall platform Open

Fhokrul Islam, C. M. Canali, Anna Pertsova, Alexander V. Balatsky, Sanjoy Kr Mahatha , et al. · 2018

The quantum anomalous Hall effect (QAHE) has recently been reported to emerge\nin magnetically-doped topological insulators. Although its general\nphenomenology is well established, the microscopic origin is far from being\nproperly unders…

Hidden phase in parent Fe-pnictide superconductors Open

Khadiza Ali, Ganesh Adhikary, Sangeeta Thakur, Swapnil Patil, Sanjoy Kr Mahatha , et al. · 2018

We investigate the origin of exoticity in Fe-based systems via studying the\nFermiology of CaFe2As2 employing Angle Resolved Photoemission spectroscopy\n(ARPES). While the Fermi surfaces (FSs) at 200 K and 31 K are observed to\nexhibit two…

Spin-polarized confined states in Ag films on Fe(1 1 0) Open

Paolo Moras, Gustav Bihlmayer, E. Vescovo, Polina M. Sheverdyaeva, M. Papagno , et al. · 2017

Spin- and angle-resolved photoemission spectroscopy of thin Ag(1 1 1) films on ferromagnetic Fe(1 1 0) shows a series of spin-polarized peaks. These features derive from Ag sp-bands, which form quantum well states and resonances due to con…

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