120 citations · 1.3k across the 59 of their papers we have counts for
24 papers · 1 filter
Cluster glass transition and relaxation in random spinel CoGa2O4
T. Naka, T. Nakane, S. Ishii +6
We report magnetic properties in the random spinel magnet CoGa2O4. Rietveld analysis of the x-ray diffraction profile for CoGa2O4 reveals that the Co and Ga ions are distributed ra…
Quantum critical behavior in Ce(FeRu)Ge: the full story
Wouter Montfrooij, Tom Heitmann, Yiming Qiu +7
Systems with embedded magnetic ions that exhibit a competition between magnetic order and disorder down to absolute zero can display unusual low temperature behaviors of the resist…
Electronic structure of the candidate 2D Dirac semimetal SrMnSb2: a combined experimental and theoretical study
S. V. Ramankutty, J. Henke, A. Schiphorst +15
SrMnSb is suggested to be a magnetic topological semimetal. It contains square, 2D Sb planes with non-symmorphic crystal symmetries that could protect band crossings, offering…
Electronic properties of a heavy-fermion U(Ru0.92Rh0.08)2Si2 single crystal
K. Prokes, Y. -K. Huang, M. Reehuis +4
We report the crystal structure and highly-anisotropic magnetic, transport and thermal properties of an exceptionally good single crystal of U(Ru0.92Rh0.08)2Si2 prepared using a mo…
Direct bulk sensitive probe of 5f symmetry in URu2Si2
Martin Sundermann, Maurits W. Haverkort, Stefano Agrestini +8
The second-order phase transition into a hidden order phase in URuSi goes along with an order parameter which is still a mystery, despite 30 years of research. However, it…
Composition induced metal-insulator quantum phase transition in the Heusler type Fe2VAl
Takashi Naka, Artem M. Nikitin, Yu Pan +6
We report the magnetism and transport properties of the Heusler compound Fe2+xV1-xAl at -0.10 < x < 0.10 under pressure and a magnetic field. A metal-insulator quantum phase transi…
Direct observation of a Fermi liquid-like normal state in an iron-pnictide superconductor
Alona Tytarenko, Yingkai Huang, Anne de Visser +2
There are two prerequisites for understanding high-temperature (high-T) superconductivity: identifying the pairing interaction and a correct description of the normal state fro…
Weak itinerant ferromagnetism in Heusler type Fe2VAl0.95
K. Sato, T. Naka, M. Taguchi +7
We report measurements of the magnetic, transport and thermal properties of the Heusler type compound Fe2VAl0.95. We show that while stoichiometric Fe2VAl is a non-magnetic semi-me…
Anomalous spin distribution in the superconducting ferromagnet UCoGe studied by polarized neutron diffraction
K. Prokes, A. de Visser, Y. K. Huang +2
We report a polarized neutron diffraction study conducted to reveal the nature of the weak ferromagnetic moment in the superconducting ferromagnet UCoGe. We find that the ordered m…
Effect of annealing on the magnetic and superconducting properties of single-crystalline UCoGe
N. T. Huy, Y. K. Huang, A. de Visser
Single-crystals of the new ferromagnetic superconductor UCoGe have been grown. The quality of as-grown samples can be significantly improved by a heat-treatment procedure, which in…
Onset of antiferromagnetism in UPt_{3} via Th-substitution studied by muon spin spectroscopy
M. J. Graf, A. de Visser, C. P. Opeil +6
Muon spin spectroscopy has been used to study in detail the onset of large-moment antiferromagnetism (LMAF) in UPt_{3} as induced by Th substitution. Zero-field experiments have be…
High pressure transport study of non-Fermi liquid behaviour in U2Pt2In and U3Ni3Sn4
A. de Visser, P. Estrela, T. Naka
The strongly correlated metals U2Pt2In and U3Ni3Sn4 show pronounced non-Fermi liquid (NFL) phenomena at ambient pressure. Here we review single-crystal electrical resistivity measu…
Pressure-induced recovery of the Fermi-liquid state in the non-Fermi liquid material U2Pt2In
P. Estrela, A. de Visser, T. Naka +2
In the study of non-Fermi-liquid (NFL) phenomena in correlated metals, U2Pt2In is of special interest as it is one of the rare stoichiometric (undoped) materials that show NFL beha…
Recovery of the Fermi-liquid state in U_3Ni_3Sn_4 by pressure
P. Estrela, A. de Visser, F. R. de Boer +2
Measurements of the resistivity of single-crystalline U_3Ni_3Sn_4 under hydrostatic pressure up to 1.8 GPa are reported. We show that the temperature T_FL, below which the resistiv…
High-pressure study of the non-Fermi liquid material U_2Pt_2In
P. Estrela, A. de Visser, T. Naka +2
The effect of hydrostatic pressure (p<= 1.8 GPa) on the non-Fermi liquid state of U_2Pt_2In is investigated by electrical resistivity measurements in the temperature interval 0.3-3…
Magnetic quantum critical point and superconductivity in UPt3 doped with Pd
A. de Visser, M. J. Graf, P. Estrela +5
Transverse-field muon spin relaxation measurements have been carried out on the heavy-fermion superconductor UPt3 doped with small amounts of Pd. We find that the critical Pd conce…
Crystal Structure and Physical Properties of U3T3Sn4 (T = Ni, Cu) Single-Crystals
L. Shlyk, P. Estrela, J. C. Waerenborgh +5
Heat capacity experiments, crystal structure determination and transmission electron microscopy have been carried out on U3Cu3Sn4 single-crystals. U3Cu3Sn4 was confirmed to be a he…
Evidence for a two component magnetic response in UPt3
A. Yaouanc, P. Dalmas de Reotier, F. N. Gygax +9
The magnetic response of the heavy fermion superconductor UPt_3 has been investigated on a microscopic scale by muon Knight shift studies. Two distinct and isotropic Knight shifts…
Search for a quantum phase transition in U(Pt_(1-x)Pd_x)_3
M. J. Graf, R. J. Keizer, A. de Visser +1
Pd in U(Pt_{1-x}Pd_x)_3 suppresses the superconducting T_c to 0 K at critical concentration x_c of 0.007 and induces a conventional AFM state for x > x_c. The resistivity below 1 K…
Resistivity of non-Fermi liquid U2Pt2In under pressure
P. Estrela, T. Naka, A. de Visser +3
Non-Fermi liquid behaviour in single-crystalline U2Pt2In has been studied by means of resistivity experiments (I||c) under hydrostatic pressure (P<1.5 GPa). At ambient pressure the…
Magnetism in heavy-fermion U(Pt,Pd)3 studied by mSR
R. J. Keizer, A. de Visser, A. A. Menovsky +5
We report mSR experiments carried out on a series of heavy-electron pseudobinary compounds U(Pt1-xPdx)3 (x<=0.05). For x<=0.005 the zero-field muon depolarisation is described by t…
Neutron-diffraction study of the evolution of antiferromagnetic order in UPt3 doped with Pd
R. J. Keizer, A. de Visser, A. A. Menovsky +3
Neutron-diffraction experiments have been carried out on U(Pt1-xPdx)3 single crystals (x<= 0.05). The small-moment antiferromagnetic order (SMAF) reported for pure UPt3 is robust u…
Studies of superconductivity in U(Pt1-xPdx)3 for x < 0.006
M. J. Graf, R. J. Keizer, A. de Visser +1
We report measurements of the specific heat and resistivity (T < 1 K) for high quality polycrystals of U(Pt1-xPdx)3 with x < 0.006. The Tc-x phase diagram can be constructed, and s…
Thermodynamics of CeNiSn at low temperatures and in weak magnetic fields
K. A. Kikoin, M. N. Kiselev, A. S. Mishchenko +1
Detailed experimental and theoretical studies of the low-temperature specific heat, magnetic susceptibility, thermal expansion and magnetostriction of the orthorhombic compound CeN…