89 citations · 422 across the 18 of their papers we have counts for
18 papers
Electrically Controlled Interfacial Charge Transfer Induced Excitons in MoSe2-WSe2 Lateral Heterostructure
Baisali Kundu, Priyanka Mondal, David Tebbe +9
Controlling excitons and their transport in two-dimensional (2D) transition metal dichalcogenides (TMDs) heterostructures is central to advancing photonics and electronics on-chip…
(CHNH)CuBr: a metal-organic two-ladder quantum magnet
J. Philippe, F. Elson, M. P. N. Casati +19
Low-dimensional quantum magnets are a versatile materials platform for studying the emergent many-body physics and collective excitations that can arise even in systems with only s…
Infrared resonance Raman of bilayer graphene: signatures of massive fermions and band structure on the 2D peak
Lorenzo Graziotto, Francesco Macheda, Tommaso Venanzi +14
Few-layer graphene possesses low-energy carriers which behave as massive fermions, exhibiting intriguing properties in both transport and light scattering experiments. Lowering the…
Chemically detaching hBN crystals grown at atmospheric pressure and high temperature for high-performance graphene devices
Taoufiq Ouaj, Leonard Kramme, Marvin Metzelaars +7
In this work, we report on the growth of hexagonal boron nitride (hBN) crystals from an iron flux at atmospheric pressure and high temperature and demonstrate that (i) the entire s…
Probing enhanced electron-phonon coupling in graphene by infrared resonance Raman spectroscopy
Tommaso Venanzi, Lorenzo Graziotto, Francesco Macheda +16
We report on resonance Raman spectroscopy measurements with excitation photon energy down to 1.16 eV on graphene, to study how low-energy carriers interact with lattice vibrations.…
Ag(II) as spin super-polarizer in metal fluoride clusters
Mateusz Domański, Jan van Leusen, Marvin Metzelaars +2
Using quantum mechanical calculations, we examine magnetic (super)exchange interactions in hypothetical, chemically reasonable molecular coordination clusters containing fluoride b…
Structural phase transitions and magnetic superexchange in MIAgIIF3 perovskites at high pressure
Łukasz Wolański, Marvin Metzelaars, Jan van Leusen +2
Pressure induced phase transitions of MIAgIIF3 perovskites where M = K, Rb, Cs, have been predicted theoretically for the first time for pressures up to 100 GPa. The sequence of ph…
Independent and coherent transitions between antiferromagnetic states of few-molecule systems
Claire Besson, Philipp Stegmann, Michael Schnee +12
Spin-electronic devices are poised to become part of mainstream microelectronic technology .Downsizing them, however, faces the intrinsic difficulty that as ferromagnets become sma…
Extraordinary high room-temperature carrier mobility in graphene-WSe heterostructures
L. Banszerus, T. Ouaj, T. Sohier +16
High charge carrier mobilities play a fundamental role for high-frequency electronics, integrated optoelectronics as well as for sensor and spintronic applications, where device pe…
Determination of exchange energies in the sawtooth spin ring {Mo75V20} by ESR
Yugo Oshima, Hiroyuki Nojiri, Jürgen Schnack +2
The magnetism of the polyoxometalate cluster {Mo75V20}, containing a sawtooth ring of 10 corner-sharing triangles located on the equator of the barrel-shaped molecule, has remained…
Level crossings and zero-field splitting in the \{Cr\}-cubane spin-cluster by inelastic neutron scattering and magnetization studies
D. Vaknin, V. O. Garlea, F. Demmel +10
Inelastic neutron scattering in variable magnetic field and high-field magnetization measurements, at the milikelvin temperature range, were performed to gain insight into the low-…
Effect of ligand substitution on the exchange interactions in {Mn12}-type single-molecule magnets
D. W. Boukhvalov, V. V. Dobrovitski, P. Kögerler +4
We investigate how the ligand substitution affects the intra-molecular spin exchange interactions, studying a prototypal family of single-molecule magnets comprising dodecanuclear…
Heat capacity uncovers physics of a frustrated spin tube
N. B. Ivanov, J. Schnack, R. Schnalle +6
We report on refined experimental results concerning the low-temperature specific heat of the frustrated spin tube material [(CuCl2tachH)3Cl]Cl2. This substance turns out to be an…
Correlation effects in the electronic structure of Mn molecular magnet
D. W. Boukhvalov, L. I. Vergara, V. V. Dobrovitski +5
We present joint theoretical-experimental study of the correlation effects in the electronic structure of (pyH)[MnOCl(OAc)]2MeCN molecular magnet (Mn…
Magnetic excitations in {Mo72Fe30}
V. O. Garlea, S. E. Nagler, J. L. Zarestky +11
We report cold-neutron inelastic neutron scattering measurements on deuterated samples of the giant polyoxomolybdate magnetic molecule {Mo72Fe30}. The 30 s = 5/2 Fe+3 ions occupy t…
Competing Spin Phases in Geometrically Frustrated Magnetic Molecules
C. Schroeder, H. Nojiri, J. Schnack +3
We have found a class of zero-dimensional geometrically frustrated Heisenberg spin systems exhibiting anomalous behavior in an external magnetic field B similar to that occuring in…
Electronic structure of magnetic molecules V15: LDA+U calculations, X-ray emission and photoelectron spectra
D. W. Boukhvalov, E. Z. Kurmaev, A. Moewes +10
Electronic structure of V magnetic molecules (K [V As O (HO)] \cdot 8HO)$ has been studied using LSDA+U band structure calculations, and measur…
Low-energy spin excitations in the molecular magnetic cluster V15
G. Chaboussant, R. Basler, A. Sieber +7
We report an Inelastic Neutron Scattering (INS) study of the fully deuterated molecular compound K6[V15As6O42].9(D2O) (V15). Due to geometrical frustration, the essential physics a…