35 citations · 119 across the 10 of their papers we have counts for
10 papers
Superconductivity of underdoped PrFeAs(O,F) investigated via point-contact spectroscopy and nuclear magnetic resonance
D. Daghero, E. Piatti, N. D. Zhigadlo +3
Underdoped PrFeAs(O,F), one of the less known members of the 1111 family of iron-based superconductors, was investigated in detail by means of transport, SQUID magnetometry, nuclea…
Muon spin rotation measurements on RbEuFeAs under pressure
S. Holenstein, B. Fischer, Y. Liu +13
We report muon spin rotation and magnetization measurements on the magnetic superconductor RbEuFeAs under hydrostatic pressures up to 3.8 GPa. At ambient pressure, RbEu…
Room-temperature structural phase transition in the quasi-2D spin-1/2 Heisenberg antiferromagnet Cu(pz)(ClO)
N. Barbero, M. Medarde, T. Shang +5
Cu(pz)(ClO) (with pz denoting pyrazine CHN) is a two-dimensional spin-1/2 square-lattice antiferromagnet with = 4.24 K. Due to a persisting…
Chemical- and hydrostatic-pressure effects on the Kitaev honeycomb material NaIrO
G. Simutis, N. Barbero, K. Rolfs +10
The low-temperature magnetic properties of \tcr{polycrystalline} NaIrO, a candidate material for the realization of a quantum spin-liquid state, were investigated by means…
Pressure effects on the electronic properties of the undoped superconductor ThFeAsN
N. Barbero, S. Holenstein, T. Shang +9
The recently synthesized ThFeAsN iron-pnictide superconductor exhibits a of 30 K, the highest of the 1111-type series in absence of chemical doping. To understand how pressur…
Nodal-to-nodeless superconducting order parameter in LaFeAsPO synthesized under high pressure
T. Shiroka, N. Barbero, R. Khasanov +3
Similar to chemical doping, pressure produces and stabilizes new phases of known materials, whose properties may differ greatly from those of their standard counterparts. Here, by…
Microscopic investigation of the weakly correlated noncentrosymmetric superconductor SrAuSi
N. Barbero, P. K. Biswas, M. Isobe +6
SrAuSi is a noncentrosymmetric superconductor (NCS) with = 1.54 K, which to date has been studied only via macroscopic techniques. By combining nuclear magnetic resonance…
Growth of bulk single-crystal MnP helimagnet and its structural and NMR characterization
Nikolai D. Zhigadlo, Nicolo Barbero, Toni Shiroka
Bulk single crystals of manganese phosphide (MnP) were grown from melt at 1 GPa and 1200 C by using a cubic-anvil, high-pressure, and high-temperature technique. The obtained black…
Doping-induced superconductivity of ZrB and HfB
N. Barbero, T. Shiroka, B. Delley +5
Unlike the widely studied -type two-gap superconductor MgB, the chemically similar compounds ZrB and HfB do not superconduct above 1 K. Yet, it has been shown that s…
Pressure and magnetic field effects on a quasi-2D spin-1/2 Heisenberg antiferromagnet
N. Barbero, T. Shiroka, C. P. Landee +3
Cu(pz)2(ClO4)2 (with pz denoting pyrazine, C4H4N2) is among the best realizations of a two-dimensional spin-1/2 square-lattice antiferromagnet. Below T_N = 4.21 K, its weak interla…