940 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Ames National LaboratoryUS155 papers
- Iowa State UniversityUS152 papers
- Argonne National LaboratoryUS49 papers
- University of GlasgowGB49 papers
- University of OxfordGB49 papers
- Sapienza University of RomeIT46 papers
- The Ohio State UniversityUS46 papers
- University College LondonGB45 papers
- University of Wisconsin–MadisonUS43 papers
- Lomonosov Moscow State UniversityRU40 papers
- University of BonnDE32 papers
- University of California, Santa CruzUS32 papers
30 papers · 1 filter
The nontrivial effects of annealing on superconducting properties of Nb single crystals
Amlan Datta, Kamal R. Joshi, Giulia Berti +9
The effect of annealing on the superconducting properties of niobium single crystals cut from the same master boule was studied by local and global magnetic measurements, as well a…
Trapped magnetic flux in hydrogen-rich high-temperature superconductors
V. S. Minkov, V. Ksenofontov, S. L. Budko +2
Recent discoveries of superconductivity in hydrogen-rich compounds stabilized by high pressures have shown that a critical temperature of superconductivity Tc can reach near room t…
High-temperature superconductivity in hydrides: experimental evidence and details
M. I. Eremets, V. S. Minkov, A. P. Drozdov +9
Since the discovery of superconductivity at 200 K in H3S [1] similar or higher transition temperatures, Tcs, have been reported for various hydrogen-rich compounds under ultra-high…
Hydrostatic and uniaxial pressure tuning of iron-based superconductors: Insights into superconductivity, magnetism, nematicity and collapsed tetragonal transitions
Elena Gati, Li Xiang, Sergey L. Bud'ko +1
Iron-based superconductors are well-known for their intriguing phase diagrams, which manifest a complex interplay of electronic, magnetic and structural degrees of freedom. Among t…
Multi-Atom Quasiparticle Scattering Interference for Superconductor Energy-Gap Symmetry Determination
Rahul Sharma, Andreas Kreisel, Miguel Antonio Sulangi +10
Complete theoretical understanding of the most complex superconductors requires a detailed knowledge of the symmetry of the superconducting energy-gap , for all mom…
Bulk superconductivity and role of fluctuations in the iron-based superconductor FeSe at high pressures
Elena Gati, Anna E. Böhmer, Sergey L. Bud'ko +1
The iron-based superconductor FeSe offers a unique possibility to study the interplay of superconductivity with purely nematic as well magnetic-nematic order by pressure (p) tuning…
Spontaneously polarized half-gapped superconductivity
Sheng Ran, Chris Eckberg, Qing-Ping Ding +8
Nonunitary superconductivity is a rare and striking phenomenon in which spin up and spin down electrons segregate into two different quantum condensates. Because they support topol…
Competition between orthorhombic and re-entrant tetragonal phases in underdoped BaKFeAs probed by the response to controlled disorder
E. I. Timmons, M. A. Tanatar, K. Willa +8
Low-temperature (22~K) irradiation with 2.5~MeV electrons was used to study the competition between stripe and tetragonal antiferromagnetic phases which exi…
Giant microwave absorption in fine powders of superconductors
G. Csősz, B. G. Márkus, A. Jánossy +8
Enhanced microwave absorption, larger than that in the normal state, is observed in fine grains of type-II superconductors (MgB and KC) for magnetic fields as small…
Whether it is possible to stabilize the 1144-phase pnictides with tri-valence cations?
B. Q. Song, Manh Cuong Nguyen, C. Z. Wang +2
The 1144 iron arsenide (e.g. CaKFe4As4) has recently been discovered and inspired a tide of search for superconductors. Such far, the discovered compounds are confined to iron arse…
Effective One-Dimensional Coupling in the Highly-Frustrated Square-Lattice Itinerant Magnet CaCoAs
A. Sapkota, B. G. Ueland, V. K. Anand +8
Inelastic neutron scattering measurements on the itinerant antiferromagnet (AFM) CaCoAs at a temperature of 8 K reveal two orthogonal planes of scattering pe…
Discovery of Orbital-Selective Cooper Pairing in FeSe
Peter O. Sprau, Andrey Kostin, Andreas Kreisel +7
The superconductor FeSe is of intense interest thanks to its unusual non-magnetic nematic state and potential for high temperature superconductivity. But its Cooper pairing mechani…
Anisotropic magnetoresistance and upper critical fields up to 63 T in CaKFeAs single crystals
Tai Kong, Fedor F. Balakirev, William R. Meier +3
We report the temperature dependencies of the upper critical fields parallel to the c-axis and parallel to the ab-plane…
Pressure-induced collapsed-tetragonal phase in SrCo2As2
W. T. Jayasekara, U. S. Kaluarachchi, B. G. Ueland +16
We present high-energy x-ray diffraction data under applied pressures up to p = 29 GPa, neutron diffraction measurements up to p = 1.1 GPa, and electrical resistance measurements u…
Spatially resolved penetration depth measurements and vortex manipulation in the ferromagnetic superconductor ErNi2B2C
Dirk Wulferding, Ilkyu Yang, Jinho Yang +6
We present a local probe study of the magnetic superconductor, ErNiBC, using magnetic force microscopy at sub-Kelvin temperatures. ErNiBC is an ideal system to expl…
Lattice distortion and stripe-like antiferromagnetic order in Ca10(Pt3As8)(Fe2As2)5
A. Sapkota, G. S. Tucker, M. Ramazanoglu +6
Ca10(Pt3As8)(Fe2As2)5 is the parent compound for a class of Fe-based high-temperature superconductors where superconductivity with transition temperatures up to 30 K can be introdu…
Fraunhofer patterns for Josephson junctions in narrow thin-films with vortices trapped in one of the banks
V. G. Kogan, R. G Mints
It is shown that a vortex trapped in one of the banks of a planar edge-type Josephson junction in a narrow thin-film superconducting strip can change drastically the field dependen…
An inelastic x-ray study of phonon broadening and charge density wave formation in ortho-II ordered YBa2Cu3O6.54
E. Blackburn, J. Chang, A. H. Said +6
Inelastic x-ray scattering is used to investigate charge density wave (CDW) formation and the low-energy lattice dynamics of the underdoped high temperature superconductor ortho-II…
Low-energy, planar magnetic defects in BaFe2As2: nanotwins, twins, antiphase and domain boundaries
S. N. Khan, Aftab Alam, D. D. Johnson
In BaFe2As2, structural and magnetic planar defects begin to proliferate below the structural phase transition, affecting descriptions of magnetism and superconductivity. We study…
Comparative study of the electronic structure, phonon spectra and electron-phonon interaction of ZrB2 and TiB2
S. M. Sichkar, V. N. Antonov, V. P. Antropov
The electronic structure, optical and x-ray absorption spectra, angle dependence of the cyclotron masses and extremal cross sections of the Fermi surface, phonon spectra, electron-…
Anisotropic Impurity-States, Quasiparticle Scattering and Nematic Transport in Underdoped Ca(Fe1-xCox)2As2
M. P. Allan, T. -M. Chuang, F. Massee +9
Iron-based high temperature superconductivity develops when the `parent' antiferromagnetic/orthorhombic phase is suppressed, typically by introduction of dopant atoms. But their im…
FeAs-based superconductivity: a case study of the effects of transition metal doping on BaFe2As2
Paul C. Canfield, Sergey L. Bud'ko
The recently discovered FeAs-based superconductors are a new, promising set of materials for both technological as well as basic research. They offer transition temperatures as hig…
Conduction electron spin-lattice relaxation time in the MgB2 superconductor
F. Simon, F. Murányi, T. Fehér +5
The spin-lattice relaxation time, , of conduction electrons is measured as a function of temperature and magnetic field in MgB. The method is based on the detection of t…
Magnetic Field Induced Density of States in Superconducting MgB: Measurement of Conduction Electron Spin-Susceptibility
F. Simon, A. Janossy, T. Feher +7
The magnetic field dependence of the spin-susceptibility, was measured in the superconducting state of high purity MgB fine powders below 1.3 T. was determine…