A5003583863- Rare-earth and actinide compounds
- Iron-based superconductors research
- Inorganic Chemistry and Materials
- Topological Materials and Phenomena
- Physics of Superconductivity and Magnetism
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced Condensed Matter Physics
- Magnetic Properties of Alloys
- Graphene research and applications
- Quantum and electron transport phenomena
- 2D Materials and Applications
- Superconductivity in MgB2 and Alloys
- Boron and Carbon Nanomaterials Research
- Magnetic properties of thin films
- Solid-state spectroscopy and crystallography
- Electronic and Structural Properties of Oxides
- Machine Learning in Materials Science
- MXene and MAX Phase Materials
- Cold Atom Physics and Bose-Einstein Condensates
- Polish-Jewish Holocaust Memory Studies
- Transition Metal Oxide Nanomaterials
- Quantum, superfluid, helium dynamics
- Inorganic Fluorides and Related Compounds
- Polish Historical and Cultural Studies
University of South Carolina
2022-2025
Los Alamos National Laboratory
2024-2025
National High Magnetic Field Laboratory
2025
Louisiana State University
2019-2023
Louisiana State University Agricultural Center
2023
Polish Academy of Sciences
2017-2022
Gdańsk University of Technology
2018-2019
In metals, electrons in a magnetic field undergo cyclotron motion, leading to oscillations physical properties called quantum oscillations. This phenomenon has never been seen robust insulator because there are no mobile electrons. We report an exception this rule. study Mott on kagome lattice which does not order magnetically down milli-Kelvin temperatures despite antiferromagnetic interactions. observe plateau at magnetization equal <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Abstract Eu‐based compounds often exhibit unusual magnetism, which is critical for nontrivial topological properties seen in materials such as EuCd 2 As . The authors investigate the structure and physical of EuZn through measurements electrical resistivity, Hall effect, magnetization, neutron diffraction. Their data show that orders antiferromagnetically with an A‐type spin configuration below T N = 19 K. Surprisingly, there strong evidence dominant ferromagnetic fluctuations above ,...
The interplay of nontrivial topology and superconductivity in condensed matter physics gives rise to exotic phenomena. However, materials are extremely rare where it is possible explore the full details superconducting pairing. Here, we investigate momentum dependence gap distribution a novel Dirac material PdTe. Using high resolution, low temperature photoemission spectroscopy, establish as spin-orbit coupled semimetal with topological Fermi arc crossing level on (010) surface. This...
At temperatures much lower than its superconducting critical temperature $T_c$ of 2.1 K, the heavy fermion superconductor UTe$_2$ has a remarkable phase diagram magnetic field $H$ vs. angles $\phi$ and $\theta$ at which is tilted away from $b$-axis toward $a$- $c$-axes, respectively, in orthorhombic unit cell. The appears to contain three phases: (1) low SC$_{\mathrm{LF}}$ extending over all values with an upper $H_{c2}$ maximum value 15 T $\phi = \theta 0^\circ$; (2) high SC$_{\mathrm{HF}}$...
The search for new magnetic quantum materials with unique electronic properties has become the focal point in condensed matter physics. One effective way to study unusual is via Hall effect measurements, which stand as a pivotal experimental avenue probing novel magnetotransport phenomena. We report investigation of EuZn2As2, within realm emergent materials. Careful analysis resistivity reveals presence ordinary (ρxy0), anomalous (ρxyAHE), and residual (Δρxy) above below antiferromagnetic...
This study addresses a perennial problem in the synthesis of copper vanadates, namely, that phase purity. A time-efficient solution combustion (SCS) was employed for obtaining α-CuV2O6 polycrystalline powder form matter minutes. Admixture final product with α-Cu2V2O7 or V2O5 avoided by combination careful pH control SCS precursor mixture and postsynthesis NaOH wash. The purity resultant demonstrated Rietveld refinement X-ray diffraction data, energy-dispersive analyses, laser Raman...
Inorganic lead-halide perovskite, cesium lead bromide (CsPbBr3), shows outstanding optoelectronic properties. Both solution- and melt-based methods have been proposed for CsPbBr3 crystal growth. The solution-based growth was done at low-temperature, whereas the high-temperature. However, comparison of optical, physical, defect states using these two different conditions has scarcely studied. Here, we compared thermal optical properties solution-grown melt-grown single crystals CsPbBr3....
We report the observation of superconductivity in single-crystalline ${\mathrm{CaPd}}_{2}{\mathrm{P}}_{2}$ and ${\mathrm{SrPd}}_{2}{\mathrm{P}}_{2}$ obtained from Bi-flux. Both crystallize ${\mathrm{ThCr}}_{2}{\mathrm{Si}}_{2}$-type structure (space group I4/mmm) with a short P-P distance. Electrical resistivity specific heat measurements conjointly corroborate bulk at ${T}_{c}\ensuremath{\sim}1.0$ K $\mathrm{\ensuremath{\Delta}}C/\ensuremath{\gamma}{T}_{\mathrm{c}}=1.42$ for...
We present the results of a thorough investigation physical properties EuAg$_4$Sb$_2$ single crystals using magnetization, heat capacity, and electrical resistivity measurements. High-quality crystals, which crystallize in trigonal structure with space group $R\bar{3}m$, were grown conventional flux method. Temperature-dependent magnetization measurements along different crystallographic orientations confirm two antiferromagnetic phase transitions around $T_{N1}$ = 10.5 K $T_{N2}$ 7.5 K....
Abstract The interplay between magnetism and electronic topology in the quantum limit is a forefront subject of condensed matter physics. Here, we show magnetic properties layered antiferromagnet EuZn 2 As pulsed fields up to 60 T temperatures down 0.6 K. By analyzing oscillations observed magnetoresistance (MR) proximity detector oscillator (PDO) frequency, find that (1) oscillation frequency F = 46 ± 6 for H // c 42 ab ; (2) corresponding Berry phase close π , implying nontrivial topology;...
A novel antiferromagnetic semiconductor, Eu<sub>3</sub>Sn<sub>2</sub>P<sub>4</sub>, is discovered and prepared using Sn-flux method. The crystal structure shows that the six Sn–Sn dimers connected by P atoms form Sn<sub>12</sub>P<sub>24</sub> crown-shape cluster with Eu located in center.
Nuclear quadrupole resonance (NQR) measurements were performed on the heavy fermion superconductor Ce3PtIn11 with Tc = 0.32 K. The temperature dependence of both spin-lattice relaxation rate 1/T1 and NQR spectra evidences occurrence two successive magnetic transitions TN1 2.2 K TN2 2.0 In transitions, even though moment at Ce(2) site plays a major role, Ce(1) also contributes to some extent. While commensurate antiferromagnetic ordered state appears for < T TN1, partially incommensurate is...
Quantum materials with stacking van der Waals (vdW) layers that can host non-trivial band structure topology and magnetism have shown many interesting properties. Here using high-throughput density functional theory calculations, we design predict tetragonal vdW-layered quantum in the MPd$_5$I$_2$ (M=Ga, In 3d transition metals). Our study shows besides known AlPd$_5$I$_2$, -MPd$_5$- structural motif of three-layer slabs separated by two I a variety metal elements giving arise to topological...
<title>Abstract</title> Quantum materials with stacking van der Waals (vdW) layers that can host non-trivial band structure topology and magnetism have shown many interesting properties. Here using high-throughput density functional theory calculations, we design predict tetragonal vdW-layered quantum in the MPd<sub>5</sub>I<sub>2</sub> (M = Ga, In 3<italic>d</italic> transition metals). Our study shows besides known AlPd<sub>5</sub>I<sub>2</sub>, -MPd<sub>5</sub>- structural motif of...
The spin-1/2 kagome Heisenberg antiferromagnets are believed to host exotic quantum entangled states. Recently, the report of 1/9 magnetization plateau and magnetic oscillations in a antiferromagnet YCu$_3$(OH)$_6$Br$_2$[Br$_x$(OH)$_{1-x}$] (YCOB) have made this material promising candidate for experimentally realizing spin liquid Here we present measurements specific heat $C_p$ YCOB high fields (up 41.5 Tesla) down 0.46 Kelvin, feature has been confirmed. Moreover, temperature dependence...
TbV$_6$Sn$_6$ is a topological metal where ferromagnetic Tb ions with strong uniaxial magnetic anisotropy interact V kagome layers. Inelastic neutron scattering measurements show that the adopt an Ising doublet ground state. Here, we consider whether transverse field can drive towards quantum critical point, providing rare example of transverse-field criticality in metallic compound. High-field magnetization suggest this avoided and reveal first-order-like spin-reorientation transition at...
The discovery of novel superconducting materials is a longstanding challenge in science, with wealth potential for applications energy, transportation, and computing. Recent advances artificial intelligence (AI) have enabled expediting the search new by efficiently utilizing vast databases. In this study, we developed an approach based on deep learning (DL) to predict materials. We synthesized compound derived from our DL network confirmed its properties agreement prediction. Our also...
CeRh2As2 is rare among superconductors, in that magnetic field tunes it between two distinct superconducting phases. Combined with a lack of local inversion symmetry and an upper critical exceeding the Pauli paramagnetic limit, this excitingly suggests triplet multicomponent superconductivity. Preceding onset, f-electron correlations cause long-range order, attributed both to antiferromagnetism itinerant (quadrupole) density-waves. Magnetic provides significant perturbation may reveal nature...
We apply a strong magnetic field to kagome Mott insulator with antiferromagnetic interactions which does not show ordering down low temperatures. observe plateau at magnetization 1/9 Bohr magneton per ion (Cu). Furthermore, in the vicinity of this we sets oscillations torque, reminiscent quantum metals. Such have never been seen wide gap and point an exotic origin. While temperature dependence these follows Fermi-liquid-theory predictions, they are approximately periodic $H$, as opposed...