Ames National Laboratory

output

19922026

most citedDetermination of Effective Permittivity and Permeability of Metamaterials from Reflection and Transmission Coefficients

3k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing 2024Show all

57 papers · 1 filter

cond-mat.str-el2024★ 1 cited

Nature of quantum criticality in the Ising ferromagnet TbV $_{6}$ Sn $_{6}$

Tianxiong Han, R. D. McKenzie, Joanna Blawat +10

TbV $_{6}$ Sn $_{6}$ is a topological metal where ferromagnetic Tb ions with strong uniaxial magnetic anisotropy interact with V kagome layers. Inelastic neutron scattering (INS) measurem…

cond-mat.str-el2024★ 2 cited

Cubic Dirac Semimetals: General Theory and Application to Rare-Earth Magnets

Shouvik Sur, Chandan Setty

Rare-earth magnets with parent cubic symmetry exhibit unique topological properties. However, the origin of these behaviors remains presently unclear. Here, we develop minimal mode…

cond-mat.mtrl-sci2024★ 5 cited

The influence of Ga doping on magnetic properties, magnetocaloric effect, and electronic structure of pseudo-binary GdZn1-xGax (x = 0-0.1)

Anis Biswas, Ajay Kumar, Prashant Singh +9

We explore the impact of introducing IIIA-group element Ga in place of IIB-group element Zn in binary intermetallic GdZn on its magnetic and magnetocaloric properties, as well as e…

cond-mat.soft2024★ 2 cited

Specific Iron Binding to Natural Sphingomyelin Membrane Induced by Non-Specific Co-Solutes

Wenjie Wang, Honghu Zhang, Binay P. Nayak +1

Hypothesis: Sphingomyelin (SPM), a crucial phospholipid in the myelin sheath, is vital in insulating nerve fibers. We hypothesize that iron ions selectively bind to the phosphatidy…

cond-mat.str-el2024★ 3 cited

Role of non-magnetic spacers in the magnetic interactions of antiferromagnetic topological insulators MnBi $_{4}$ Te $_{7}$ and MnBi $_{2}$ Te $_{4}$

Bing Li, D. M. Pajerowski, J. -Q. Yan +1

MnBi $_{4}$ Te $_{7}$ belongs to a family of antiferromagnetic topological insulators. It forms a natural heterostructure of magnetic (septuple) and non-magnetic (quintuple) topologic…

quant-ph2024★ 1 cited

$2 + 1$ dimensional Floquet systems and lattice fermions: Exact bulk spectral equivalence

Thomas Iadecola, Srimoyee Sen, Lars Sivertsen

A connection has recently been proposed between periodically driven systems known as Floquet insulators in continuous time and static fermion theories in discrete time. This connec…

quant-ph2024★ 2 cited

Observable Measurement-Induced Transitions

Aleksei Khindanov, Igor L. Aleiner, Lara Faoro +1

One of the main postulates of quantum mechanics is that measurements destroy quantum coherence (wave function collapse). Recently it was discovered that in a many-body system dilut…

cond-mat.str-el2024★ 3 cited

Band structure and charge ordering of Dirac semimetal EuAl $_{4}$ at low temperatures

Andrew Eaton, Brinda Kuthanazhi, Paul C. Canfield +6

EuAl $_{4}$ is proposed to host a topological Hall state. This material also undergoes four consecutive antiferromagnetic (AFM) transitions upon cooling below TN1 = 15.4 K in the pres…

cond-mat.str-el2024★ 6 cited

Unexpected changes in the band structure within AFM1 state of CeBi

Yevhen Kushnirenko, Brinda Kuthanazhi, Benjamin Schrunk +7

We perform angle-resolved photoemission spectroscopy (ARPES) measurements in conjunction with density functional theory (DFT) calculations to investigate the evolution of the elect…

cond-mat.supr-con2024★ 4 cited

Machine-learning Guided Search for Phonon-mediated Superconductivity in Boron and Carbon Compounds

Niraj K. Nepal, Lin-Lin Wang

We present a workflow that iteratively combines \textit{ab-initio} calculations with a machine-learning (ML) guided search for superconducting compounds with both dynamical stabili…

quant-ph2024★ 3 cited

Concomitant Entanglement and Control Criticality Driven by Collective Measurements

Thomas Iadecola, Justin H. Wilson, J. H. Pixley

Adaptive quantum circuits-where a quantum many-body state is controlled using measurements and conditional unitary operations-are a powerful paradigm for state preparation and quan…

cond-mat.str-el2024★ 9 cited

High-field magnetic phase diagrams of the $R$ Mn $_{6}$ Sn $_{6}$ kagome metals

Nil L, Thais Victa-Trevisan, R. J. McQueeney

$R$ Mn $_{6}$ Sn $_{6}$ ( $R =$ ~Y,~Gd $-$ Lu) kagome metals are promising materials hosting flat electronic bands and Dirac points that interact with magnetism. The coupling between t…

cond-mat.str-el2024★ 5 cited

A Gallery of Soft Modes: Theory and Experiment at a Ferromagnetic Quantum Phase Transition

P. C. E. Stamp, D. M. Silevitch, M. Libersky +3

We examine the low-energy excitations in the vicinity of the quantum critical point in LiHoF $_{4}$ , a physical realization of the Transverse Field Ising Model, focusing on the long-r…

cond-mat.mtrl-sci2024★ 8 cited

Strain-modulated Intercalated Phases of Pb Monolayer with Dual Periodicity in SiC(0001)-Graphene Interface

Lin-Lin Wang, Shen Chen, Marek Kolmer +2

Intercalation of metal atoms at the SiC(0001)-graphene (Gr) interface can provide confined 2D metal layers with interesting properties. The intercalated Pb monolayer (ML) has shown…

cond-mat.mtrl-sci2024★ 6 cited

Enhanced Superconducting Qubit Performance Through Ammonium Fluoride Etch

Cameron J. Kopas, Dominic P. Goronzy, Thang Pham +19

The performance of superconducting qubits is often limited by dissipation and two-level systems (TLS) losses. The dominant sources of these losses are believed to originate from am…

quant-ph2024★ 6 cited

Adaptive variational quantum dynamics simulations with compressed circuits and fewer measurements

Feng Zhang, Cai-Zhuang Wang, Thomas Iadecola +2

The adaptive variational quantum dynamics simulation (AVQDS) method performs real-time evolution of quantum states using automatically generated parameterized quantum circuits that…

cond-mat.supr-con2024★ 1 cited

Spin dynamics in itinerant antiferromagnet SrCr $_{2}$ As $_{2}$

Zhenhua Ning, Pinaki Das, Y. Lee +6

SrCr $_{2}$ As $_{2}$ is an itinerant antiferromagnet in the same structural family as the SrFe $_{2}$ As $_{2}$ high-temperature superconductors. We report our calculations of exchange-coupling…

quant-ph2024★ 3 cited

Classical Benchmarks for Variational Quantum Eigensolver Simulations of the Hubbard Model

Antonios M. Alvertis, Abid Khan, Thomas Iadecola +2

Simulating the Hubbard model is of great interest to a wide range of applications within condensed matter physics, however its solution on classical computers remains challenging i…

physics.comp-ph2024★ 7 cited

HTESP (High-throughput electronic structure package): a Package for the high-throughput $ab$ $ini t i o$ calculations

Niraj K. Nepal, Paul C. Canfield, Lin-Lin Wang

High-throughput $ab$ $ini t i o$ calculations are the indispensable parts of data-driven discovery of new materials with desirable properties, as reflected in the establishment of sev…

cond-mat.mtrl-sci2024★ 17 cited

Toward a first-principles theory of rare-earth ions in crystals

Y. Lee, Z. Ning, R. Flint +3

Density functional theory (DFT), including its extensions designed to treat strongly correlated localized electron systems such as DFT+ $U$ and DFT+dynamical mean field theory, has…

cond-mat.supr-con2024★ 2 cited

Conventional s-wave superconductivity and hidden peak effect in single crystals of Mo $_{8}$ Ga $_{4} 1$ superconductor

Sunil Ghimire, Kyuil Cho, Kamal R. Joshi +4

London and Campbell penetration depths were measured in single crystals of the endohedral gallide cluster superconductor, Mo $_{8}$ Ga $_{41}$ . The full temperature range superfluid d…

cond-mat.supr-con2024

Single-gap Isotropic $s -$ wave Superconductivity in Single Crystals $AuSn_{4}$

Sunil Ghimire, Kamal R. Joshi, Elizabeth H. Krenkel +5

London, $λ_{L} (T)$ , and Campbell, $λ_{C} (T)$ , penetration depths were measured in single crystals of a topological superconductor candidate $AuSn_{4}$ . At low temperatures, $λ…

cond-mat.mtrl-sci2024★ 3 cited

Design and Predict Tetragonal van der Waals Layered Quantum Materials of MPd $_{5}$ I $_{2}$ (M=Ga, In and 3 $d$ Transition Metals)

Niraj K. Nepal, Tyler J. Slade, Joanna M. Blawat +8

Quantum materials with stacked van der Waals (vdW) layers hosting non-trivial band structure topology and magnetism have shown many interesting properties. Using high throughput de…

cond-mat.str-el2024

Distinct effect of Kondo physics on crystal field splitting in electron and spin spectroscopies

M. Kornjača, R. Flint

Magnetic anisotropy is a key feature of rare earth materials from permanent magnets to heavy fermions. We explore the complex interplay of Kondo physics and anisotropy, and their e…

Nature of quantum criticality in the Ising ferromagnet TbV6​Sn6​