211 citations · 508 across the 21 of their papers we have counts for
21 papers
Non-collinear and strongly asymmetric polar moments at back-gated SrTiO3 interfaces
Fryderyk Lyzwa, Yurii G. Pashkevich, Premysl Marsik +15
The highly mobile electrons at the interface of SrTiO3 with other oxide insulators, such as LaAlO3 or AlOx, are of great current interest. A vertical gate voltage allows controllin…
Muon spin rotation and infrared spectroscopy study of
E. Sheveleva, B. Xu, P. Marsik +8
The magnetic and superconducting properties of a series of underdoped (BNFA) single crystals with has been investigated with the…
Relevance of magnetism to cuprate superconductivity: Lanthanides versus charge-compensated cuprates
Amit Keren, Wayne Crump, Ben P. P. Mallett +4
We address what seemed to be a contradiction between the lanthanide series REBaCuO (RE123) and the charge-compensated series (CaLa)(BaLa$_{0.25…
Backfolded acoustic phonons in metal-oxide superlattices
F. Lyzwa, A. Chan, J. Khmaladze +5
We report the observation of low-frequency modes in the Raman spectra of thin-film superlattices of the high-temperature superconductor YBaCuO and various…
Systematic Raman study of optical phonons in BaCuO ( = Y, Dy, Gd, Sm, Nd): Antiferromagnetic coupling strength versus lattice parameters
Silvia Müllner, Wayne Crump, Dirk Wulferding +4
We present a systematic study of the interplay between lattice parameters and the energy of the optical phonons as well as the antiferromagnetic coupling strength, , in the high…
Scaling of the Fano effect of the in-plane Fe-As phonon and the superconducting critical temperature in BaKFeAs
B. Xu, E. Cappelluti, L. Benfatto +11
By means of infrared spectroscopy we determine the temperature-doping phase diagram of the Fano effect for the in-plane Fe-As stretching mode in BaKFeAs.…
Lattice-Mediated Magnetic Order Melting in TbMnO3
Edoardo Baldini, Teresa Kubacka, Benjamin P. P. Mallett +6
Recent ultrafast magnetic-sensitive measurements [Phys. Rev. B 92, 184429 (2015) and Phys. Rev. B 96, 184414 (2017)] have revealed a delayed melting of the long-range cycloid spin-…
Infrared ellipsometry study of the photo-generated charge carriers at the (001) and (110) surfaces of SrTiO crystals and the interface of corresponding LaAlO/SrTiO heterostructures
M. Yazdi-Rizi, P. Marsik, B. P. P. Mallett +7
With infrared (IR) ellipsometry and DC resistance measurements we investigated the photo-doping at the (001) and (110) surfaces of SrTiO (STO) single crystals and at the corres…
Muon spin rotation and infrared spectroscopy study of magnetism and superconductivity in BaKFeAs
B. P. P. Mallett, C. N. Wang, P. Marsik +6
Using muon spin rotation and infrared spectroscopy we study the relation between magnetism and superconductivity in BaKFeAs single crystals from t…
Anisotropy of the infrared-active phonon modes in the mono-domain state of tetragonal SrTiO3 (110)
M. Yazdi-Rizi, P. Marsik, B. P. P. Mallett +1
With infrared and terahertz ellipsometry we investigated the anisotropy of the infrared active phonon modes in SrTiO3 (110) single crystals in the tetragonal state below the so-cal…
Strongly bound excitons in anatase TiO2 single crystals and nanoparticles
Edoardo Baldini, Letizia Chiodo, Adriel Dominguez +11
Anatase TiO is among the most studied materials for light-energy conversion applications, but the nature of its fundamental charge excitations is still unknown. Yet it is cruci…
Infrared ellipsometry study of the confined electrons in a high-mobility -AlO/SrTiO heterostructure
Meghdad Yazdi-Rizi, Premysl Marsik, Benjamin Mallett +5
With infrared ellipsometry we studied the response of the confined electrons in a -AlO/SrTiO heterostructures in which they originate predominantly from oxygen vacan…
Terahertz ellipsometry study of the soft mode behavior in ultrathin SrTiO3 films
Premysl Marsik, Kaushik Sen, Jarji Khmaladze +3
We present a combined study with conventional far-infrared and time-domain terahertz ellipsometry of the temperature dependent optical response of SrTiO3 thin films (85 and 8.5 nm)…
Granular superconductivity and magnetic-field-driven recovery of macroscopic coherence in a cuprate/manganite multilayer
B. P. P. Mallett, J. Khmaladze, P. Marsik +6
We show that in PrLaCaMnO/YBaCuO (PLCMO/YBCO) multilayers the low temperature state of YBCO is very resistive and rese…
Clocking the Onset of Bilayer Coherence in a High- Cuprate
Edoardo Baldini, Andreas Mann, Benjamin P. P. Mallett +8
In cuprates, a precursor state of superconductivity is speculated to exist above the critical temperature . Here we show via a combination of far-infrared ellipsometr…
Muon-spin-rotation study of the magnetic structure in the tetragonal antiferromagnetic state of weakly underdoped BaKFeAs
B. P. P. Mallett, Yu. G. Pashkevich, A. Gusev +2
With muon spin rotation (SR) we studied the transition between the orthorhombic antiferromagnetic (o-AF) and the tetragonal antiferromagnetic (t-AF) states of a weakly underdop…
Infrared study of the spin reorientation transition and its reversal in the superconducting state in underdoped BaKFeAs
Ben PP Mallett, Premysl Marsik, Meghdad Yazdi-Rizi +6
With infrared spectroscopy we investigated the spin-reorientation transition from an orthorhombic antiferromagnetic (o-AF) to a tetragonal AF (t-AF) phase and the reentrance of the…
Possible very high transition temperatures in the infinite-layer ACuO cuprate superconductor for A={Mg, Ca, Sr, Ba}: A DFT study
B. P. P. Mallett, N. Gaston, J. G. Storey +3
We show from a bond valence sum correlation that very high superconducting values should be found in optimally hole-doped infinite-layer ACuO cuprates - up to 160…
Ion-size effects on cuprate High Temperature Superconductors
Benjamin P P Mallett
There are two general ways to compress the cuprates, by external pressure or by internal pressure as induced by isovalent-ion substitution. Paradoxically, they have the opposite ef…
Dielectric versus magnetic pairing mechanisms in high-temperature cuprate superconductors investigated using Raman scattering
B. P. P. Mallett, T. Wolf, E. Gilioli +6
We suggest, and demonstrate, a systematic approach to the study of cuprate superconductors, namely, progressive change of ion size in order to systematically alter the interaction…
Tc is insensitive to magnetic interactions in high-Tc superconductors
B. Mallett, G. V. M. Williams, A. B. Kaiser +4
A quarter of a century after their discovery the mechanism that pairs carriers in the cuprate high-Tc superconductors (HTS) still remains uncertain. Despite this the general consen…