162 citations · 735 across the 23 of their papers we have counts for
24 papers
The self-organized vacancy order in PrGe
Jayashani S. T. Wickramasinghe, Melissa G. Anderson, Kelci Graville +11
In this work, we report the discovery of a new crystal structure on the Ge-rich side of the Pr-Ge binary phase diagram. Using a high-temperature flux technique, we grew single crys…
Magnetic field-tuned magnetic order and metamagnetic criticality in non-stoichiometric CeAuBi
Halyna Hodovanets, Hyunsoo Kim, Tristin Metz +9
We present a detailed study of magnetization, resistivity, heat capacity, and X-ray and neutron powder diffraction measurements performed on single crystals of non-stoichiometric C…
Symmetry-breaking normal state response and surface superconductivity in topological semimetal YPtBi
Hyunsoo Kim, Tristin Metz, Halyna Hodovanets +4
Most of the half-Heusler RPtBi compounds (R=rare earth) host various surface states due to spin-orbit coupling driven topological band structure. While recent ARPES measurements ub…
Campbell penetration depth in low carrier density superconductor YPtBi
Hyunsoo Kim, Makariy A. Tanatar, Halyna Hodovanets +3
Magnetic penetration depth, , was measured as a function of temperature and magnetic field in single crystals of low carrier density superconductor YPtBi by using a tunnel-d…
Anomalous symmetry breaking in Weyl semimetal CeAlGe
H. Hodovanets, C. J. Eckberg, Y. Eo +7
CeAlGe, a proposed type-II Weyl semimetal, orders antiferromagnetically below 5 K. At 2 K, spin-flop and a spin-flip transitions to less than 1 /Ce are observed in the …
-axis transport in UTe: Evidence of Three Dimensional Conductivity Component
Yun Suk Eo, Shouzheng Liu, Shanta R. Saha +13
We study the temperature dependence of electrical resistivity for currents directed along all crystallographic axes of the spin-triplet superconductor UTe. We focus particula…
Anomalous Quantum Oscillations in Spin-3/2 Topological Semimetal YPtBi
Hyunsoo Kim, Junhyun Lee, Halyna Hodovanets +3
The proposed high-spin superconductivity in the half-Heusler compounds changes the landscape of superconductivity research. While superconducting instability is possible only in sy…
Sixfold enhancement of superconductivity in a tunable electronic nematic system
Chris Eckberg, Daniel J. Campbell, Tristin Metz +10
The electronic nematic phase, wherein electronic degrees of freedom lower the crystal rotational symmetry, is a common motif across a number of high-temperature superconductors. Ho…
Single crystal investigation of proposed type-II Weyl semimetal CeAlGe
H. Hodovanets, C. J. Eckberg, P. Y. Zavalij +6
We present details of materials synthesis, crystal structure, and anisotropic magnetic properties of single crystals of CeAlGe, a proposed type-II Weyl semimetal. Single-crystal x-…
Evolution of Structure and Superconductivity in Ba(NiCo)As
Chris Eckberg, Limin Wang, Halyna Hodovanets +5
The effects of Co-substitution on Ba(NiCo)As () single crystals grown out of Pb flux are investigated via transport, magnetic, and thermodyna…
CoAs: The line of 3d demarcation
Daniel J. Campbell, Limin Wang, Chris Eckberg +3
Transition metal-pnictide compounds have received attention for their tendency to combine magnetism and unconventional superconductivity. Binary CoAs lies on the border of paramagn…
Quantum Oscillations in the Anomalous Spin Density Wave State of FeAs
Daniel J. Campbell, Chris Eckberg, Kefeng Wang +5
Quantum oscillations in the binary antiferromagnetic metal FeAs are presented and compared to theoretical predictions for the electronic band structure in the anomalous spin densit…
Beyond Triplet: Unconventional Superconductivity in a Spin-3/2 Topological Semimetal
Hyunsoo Kim, Kefeng Wang, Yasuyuki Nakajima +11
In all known fermionic superfluids, Cooper pairs are composed of spin-1/2 quasi-particles that pair to form either spin-singlet or spin-triplet bound states. The "spin" of a Bloch…
Remarkably robust and correlated coherence and antiferromagnetism in (CeLa)CuGe
H. Hodovanets, S. L. Bud'ko, W. E. Straszheim +5
We present magnetic susceptibility, resistivity, specific heat, and thermoelectric power measurements on (CeLa)CuGe single crystals (0 1). With La…
Crystal growth and annealing study of fragile, non-bulk superconductivity in YFeGe
H. Kim, S. Ran, E. D. Mun +5
We investigated the occurrence and nature of superconductivity in single crystals of YFeGe grown out of Sn flux by employing x-ray diffraction, electrical resistivity, and…
Fermi surface reconstruction in (BaK)FeAs (0.44 1) probed by thermoelectric power measurements
Halyna Hodovanets, Yong Liu, Anton Jesche +5
We report in-plane thermoelectric power measurements on single crystals of (BaK)FeAs (0.44 1). We observe a minimum in the S versus x…
Physical properties of CeGe2-x (x = 0.24) single crystals
Sergey L. Bud'ko, Halyna Hodovanets, Alex Panchula +2
We present data on the anisotropic magnetic properties, heat capacity and transport properties of CeGe2-x (x = 0.24) single crystals. The electronic coefficient of the heat capacit…
Thermoelectric power of Ba(Fe1-xCox)2As2, 0\leqx\leq0.05, and Ba(Fe1-xRhx)2As2, (0\leqx\leq0.171)
H. M. Hodovanets, A. Thaler, E. Mun +3
Temperature-dependent, in-plane, thermoelectric power data are presented for single crystals of Ba(Fe1-xCox)2As2, 0\leqx\leq0.05, and Ba(Fe1-xRhx)2As2, (0\leqx\leq0.171). Given tha…
Boron isotope effect in single crystals of ErNiBC superconductor
Halyna Hodovanets, Sheng Ran, Paul C. Canfield +1
The influence of local moment magnetism on the boron isotope effect of T was studied on single crystals of ErNiBC. Values of the partial isotope effect exponent of $α_B…
Synthesis and physical properties of the new potassium iron selenide superconductor K0.80Fe1.76Se2
Rongwei Hu, E. D. Mun, D. H. Ryan +13
In this article we review our studies of the K0.80Fe1.76Se2 superconductor, with an attempt to elucidate the crystal growth details and basic physical properties over a wide range…
Physical and magnetic properties of Ba(Fe_(1-x)Mn_x)_2As_2 single crystals
A. Thaler, H. Hodovanets, M. S. Torikachvili +6
Single crystals of Ba(Fe_(1-x)Mn_x)_2As_2, 0<x<0.148, have been grown and characterized by structural, magnetic, electrical transport and thermopower measurements. Although growths…
Anisotropic magnetism, resistivity, London penetration depth and magneto-optical imaging of superconducting K0.80Fe1.76Se2 single crystals
R. Hu, K. Cho, H. Kim +6
Single crystals of K0.80Fe1.76Se2.02 were suscessfully grown from a ternary solution. We show that although crystals form when cooling a near stoichiometric melt, crystals are actu…
Importance of Fermi surface topology for high temperature superconductivity in electron-doped iron arsenic superconductors
Chang Liu, A. D. Palczewski, Takeshi Kondo +8
We used angle resolved photoemission spectroscopy and thermoelectric power to study the poorly explored, highly overdoped side of the phase diagram of Ba(Fe1-xCox)2As2 high tempera…
Evolution of ground state and upper critical field in R(1-x)GdxNi2B2C (R = Lu, Y): Coexistence of superconductivity and spin-glass state
S. L. Bud'ko, V. G. Kogan, H. Hodovanets +4
We report effects of local magnetic moment, Gd3+, doping (x =< 0.3) on superconducting and magnetic properties of the closely related Lu(1-x)GdxNi2B2C and Y(1-x)GdxNi2B2C series. T…