Publications (46)
Enhanced low field magnetoresistance of Fe3O4 nano-sphere compact
P. Y. Song, J. F. Wang, C. P. Chen +2
Unusually large low field magetoresistance (LFMR), ~ 10 %, at 300 K has been observed with the sample of mono-dispersed Fe3O4 magnetite nanospheres, ~ 200 nm, compactly cold-presse…
Towards experimental entanglement connection with atomic ensembles in the single excitation regime
J. Laurat, C. W. Chou, H. Deng +4
We present a protocol for performing entanglement connection between pairs of atomic ensembles in the single excitation regime. Two pairs are prepared in an asynchronous fashion an…
Measurement of neutron production in atmospheric neutrino interactions at the Sudbury Neutrino Observatory
SNO Collaboration, B. Aharmim, S. N. Ahmed +129
Neutron production in GeV-scale neutrino interactions is a poorly studied process. We have measured the neutron multiplicities in atmospheric neutrino interactions in the Sudbury N…
Multivalley two-dimensional electron system in an AlAs quantum well with mobility exceeding cmVs
Yoon Jang Chung, K. A. Villegas Rosales, H. Deng +4
Degenerate conduction-band minima, or `valleys', in materials such as Si, AlAs, graphene, and MoS allow them to host two-dimensional electron systems (2DESs) that can access a…
Phase and amplitude asymmetry in the quasi-biennial oscillation of solar Halpha flare activity
L. H. Deng, X. J. Zhang, G. Y. Li +2
Quasi-biennial oscillation (QBO) of solar magnetic activities is intrinsic to dynamo mechanism, but still far from fully understood. In this work, the phase and amplitude asymmetry…
Critical Filling Factor for the Formation of a Quantum Wigner Crystal Screened by a Nearby Layer
H. Deng, L. W. Engel, L. N. Pfeiffer +3
One of the most fascinating ground states of an interacting electron system is the so-called Wigner crystal where the electrons, in order to minimize their repulsive Coulomb energy…
Coherent population transfer between weakly-coupled states in a ladder-type superconducting qutrit
H. K. Xu, W. Y. Liu, G. M. Xue +9
Stimulated Raman adiabatic passage (STIRAP) offers significant advantages for coherent population transfer between un- or weakly-coupled states and has the potential of realizing e…
Experimental demonstration of dark current mitigation by an over-inserted plug in a normal conducting VHF gun
X. -H. Wang, G. Shu, H. Qian +7
The room temperature continuous wave (CW) very-high-frequency (VHF) gun is one of the candidates for the electron gun of the high-repetition-rate free-electron lasers (FELs). The V…
Pressure induced transition from chiral charge order to time-reversal symmetry-breaking superconducting state in Nb-doped CsVSb
J. N. Graham, S. S. Islam, V. Sazgari +19
The experimental realisation of unconventional superconductivity and charge order in kagome systems \textit{A}VSb is of critical importance. We conducted a highly systemati…
Neutron scattering study of commensurate magnetic ordering in single crystal CeSb
B. Liu, L. Wang, I. Radelytskyi +8
Temperature and field-dependent magnetization measurements and neutron scattering study of a single crystal CeSb are presented. Several anomalies in the magnetization…
Systematic Regularity of Solar Coronal Rotation During the Time Interval 1939-2019
L. H. Deng, X. J. Zhang, H. Deng +2
Temporal variation of the solar coronal rotation appears to be very complex and its relevances to the eleven-year solar activity cycle are still unclear. Using the modified coronal…
Cosmogenic Neutron Production at the Sudbury Neutrino Observatory
B. Aharmim, S. N. Ahmed, A. E. Anthony +128
Neutrons produced in nuclear interactions initiated by cosmic-ray muons present an irreducible background to many rare-event searches, even in detectors located deep underground. M…
Melting phase diagram of bubble phases in high Landau levels
K. A. Villegas, S. K. Singh, H. Deng +5
A low-disorder, two-dimensional electron system (2DES) subjected to a large perpendicular magnetic field and cooled to very low temperatures provides a rich platform for studies of…
The search for neutron-antineutron oscillations at the Sudbury Neutrino Observatory
SNO Collaboration, B. Aharmim, S. N. Ahmed +122
Tests on symmetry breaking models are important probes to search for new physics. One proposed model with involves the oscillations of a neutron to an antineutron…
An Improved Limit on the Muon Electric Dipole Moment
G. W. Bennett, B. Bousquet, H. N. Brown +73
Three independent searches for an electric dipole moment (EDM) of the positive and negative muons have been performed, using spin precession data from the muon g-2 storage ring at…
Depth-dependent study of time-reversal symmetry-breaking in the kagome superconductor VSb
J. N. Graham, C. Mielke, D. Das +21
The breaking of time-reversal symmetry (TRS) in the normal state of kagome superconductors VSb stands out as a significant feature. Yet the extent to which this effe…
Combined Analysis of all Three Phases of Solar Neutrino Data from the Sudbury Neutrino Observatory
SNO Collaboration, B. Aharmim, S. N. Ahmed +121
We report results from a combined analysis of solar neutrino data from all phases of the Sudbury Neutrino Observatory. By exploiting particle identification information obtained fr…
Irradiation Study Using QA Test Pieces of ATLAS18 ITk Strip Sensors with 80MeV Protons
Y. Huang, H. Li, B. Crick +20
The ATLAS experiment is planning a complete replacement of its inner detector(ID) with a new all-silicon inner tracker (ITk) for the ATLAS Inner Tracker Phase-2 upgrade. The ATLAS1…
A Monte Carlo simulation of the Sudbury Neutrino Observatory proportional counters
B. Beltran, H. Bichsel, B. Cai +28
The third phase of the Sudbury Neutrino Observatory (SNO) experiment added an array of 3He proportional counters to the detector. The purpose of this Neutral Current Detection (NCD…
Constraints on Neutrino Lifetime from the Sudbury Neutrino Observatory
SNO Collaboration, B. Aharmim, S. N. Ahmed +128
The long baseline between the Earth and the Sun makes solar neutrinos an excellent test beam for exploring possible neutrino decay. The signature of such decay would be an energy-d…
quantum interference in bosonic and fermionic matter-wave amplification
H. Deng, Y. Yamamoto
We investigate the quantum interference effects in two types of matter-wave mixing experiments: one with initial matter waves prepared in independent Fock states (type I) and the o…
Comparing recent PTA results on the nanohertz stochastic gravitational wave background
The International Pulsar Timing Array Collaboration, G. Agazie, J. Antoniadis +242
The Australian, Chinese, European, Indian, and North American pulsar timing array (PTA) collaborations recently reported, at varying levels, evidence for the presence of a nanohert…
Heralded Entanglement between Atomic Ensembles: Preparation, Decoherence, and Scaling
J. Laurat, K. S. Choi, H. Deng +2
Heralded entanglement between collective excitations in two atomic ensembles is probabilistically generated, stored, and converted to single photon fields. By way of the concurrenc…
Long-range magnetic order in CePdAl enabled by orthorhombic deformation
M. Stekiel, P. Äermák, C. Franz +13
We investigate the effect of structural deformation on the magnetic properties of orthorhombic CePdAl in relation to its tetragonal polymorph. Utilizing x-ray and neutron diffr…
Experimental Results and Theoretical Developments of Muon g-2
H. Deng, for Muon g-2 Collaboration
The anomalous magnetic moments of both positive and negative muons are measured to the precision of 0.7 parts per million. Two values are in good agreement. The standard model calc…
An array of low-background He proportional counters for the Sudbury Neutrino Observatory
J. F. Amsbaugh, J. M. Anaya, J. Banar +71
An array of Neutral-Current Detectors (NCDs) has been built in order to make a unique measurement of the total active flux of solar neutrinos in the Sudbury Neutrino Observatory (S…
Wigner solid pinning modes tuned by fractional quantum Hall states of a nearby layer
A. T. Hatke, H. Deng, Yang Liu +5
We study a bilayer system hosting exotic many-body states of two-dimensional electron systems (2DESs) in close proximity but isolated from one another by a thin barrier. One 2DES h…
Probing the Melting of a Two-dimensional Quantum Wigner Crystal via its Screening Efficiency
H. Deng, L. N. Pfeiffer, K. W. West +3
One of the most fundamental and yet elusive collective phases of an interacting electron system is the quantum Wigner crystal (WC), an ordered array of electrons expected to form w…
Magnetic phase diagram of HoFeO by neutron diffraction
A. K. Ovsianikov, O. V. Usmanov, I. A. Zobkalo +13
Neutron diffraction studies of HoFeO single crystal were performed under external magnetic fields. The interplay between the external magnetic field, Dzyaloshinsky-Moria antisy…
Distributed Data-Processing Pipeline for Mingantu Ultrawide Spectral Radioheliograph
F. Wang, Y. Mei, H. Deng +8
The Chinese Spectral RadioHeliograph (CSRH) is a synthetic aperture radio interferometer built in Inner Mongolia, China. As a solar-dedicated interferometric array, CSRH is capable…
Interaction-induced Interlayer Charge Transfer in the Extreme Quantum Limit
H. Deng, Y. Liu, I. Jo +4
An interacting bilayer electron system provides an extended platform to study electron-electron interaction beyond single layers. We report here experiments demonstrating that the…
Spin reorientation in FeCrAs revealed by single-crystal neutron diffraction
W. T. Jin, M. Meven, H. Deng +4
The magnetic structure of the "nonmetallic metal" FeCrAs, a compound with the characters of both metals and insulators, was examined as a function of temperature using single-cryst…
Incommensurate antiferromagnetic order in CePtAl
M. Stekiel, P. Cermak, C. Franz +9
We report a neutron diffraction study of single-crystal CePtAl complemented by measurements of the specific heat under applied magnetic field. Below =3 K CePtAl$_…
Measurement of the and Total B Solar Neutrino Fluxes with the Sudbury Neutrino Observatory Phase-III Data Set
B. Aharmim, S. N. Ahmed, J. F. Amsbaugh +147
This paper details the solar neutrino analysis of the 385.17-day Phase-III data set acquired by the Sudbury Neutrino Observatory (SNO). An array of He proportional counters was…
Crystal structure of the unconventional spin-triplet superconductor UTe2 at low temperature by single crystal neutron diffraction
V. Hutanu, H. Deng, S. Ran +3
The crystal structure of the new superconductor UTe2 has been investigated for the first time at low temperature (LT) of 2.7 K, just closely above the superconducting transition te…
Composite Fermions Waltz to the Tune of a Wigner Crystal
Yang Liu, H. Deng, M. Shayegan +3
When the kinetic energy of a collection of interacting two-dimensional (2D) electrons is quenched at very high magnetic fields so that the Coulomb repulsion dominates, the electron…
A Search for Astrophysical Burst Signals at the Sudbury Neutrino Observatory
B. Aharmim, S. N. Ahmed, A. E. Anthony +124
The Sudbury Neutrino Observatory (SNO) has confirmed the standard solar model and neutrino oscillations through the observation of neutrinos from the solar core. In this paper we p…
Mapping photonic entanglement into and out of a quantum memory
K. S. Choi, H. Deng, J. Laurat +1
Recent developments of quantum information science critically rely on entanglement, an intriguing aspect of quantum mechanics where parts of a composite system can exhibit correlat…
Observation of fractional quantum Hall effect in an InAs quantum well
Meng K. Ma, Md. Shafayat Hossain, K. A. Villegas Rosales +4
The two-dimensional electron system in an InAs quantum well has emerged as a prime candidate for hosting exotic quasi-particles with non-Abelian statistics such as Majorana fermion…
Hidden magnetism uncovered in charge ordered bilayer kagome material ScV_6Sn_6
Z. Guguchia, D. J. Gawryluk, Soohyeon Shin +20
Charge ordered kagome lattices have been demonstrated to be intriguing platforms for studying the intertwining of topology, correlation, and magnetism. The recently discovered char…
Search for solar neutrinos and the diffuse supernova neutrino background using all three phases of the Sudbury Neutrino Observatory
B. Aharmim, S. N. Ahmed, A. E. Anthony +129
A search has been performed for neutrinos from two sources, the reaction in the solar fusion chain and the component of the diffuse supernova neutrino background…
Fractional Quantum Hall Effect in Tilted Magnetic Fields
Sukret Hasdemir, Yang Liu, H. Deng +4
Magnetotransport measurements on two-dimensional electrons confined to wide GaAs quantum wells reveal a remarkable evolution of the ground state at filling factor as we ti…
Tests of Lorentz invariance at the Sudbury Neutrino Observatory
SNO Collaboration, B. Aharmim, S. N. Ahmed +131
Experimental tests of Lorentz symmetry in systems of all types are critical for ensuring that the basic assumptions of physics are well-founded. Data from all phases of the Sudbury…
Josephson junctions as nanoelectromechanical Bloch oscillators
T. McDermott, E. Mariani, H. Deng
Bloch oscillations were predicted and observed long ago in Josephson junctions, which are thin insulating or conducting layers bridging two superconductors. Here we forward a schem…
Thermal and quantum melting phase diagrams for a magnetic-field-induced Wigner solid
Meng K. Ma, K. A. Villegas Rosales, H. Deng +6
A sufficiently large perpendicular magnetic field quenches the kinetic (Fermi) energy of an interacting two-dimensional (2D) system of fermions, making them susceptible to the form…
The spatial distribution of quasi-biennial oscillations in the high-latitude solar activity
L. H. Deng, Y. Fei, H. Deng +2
Quasi-biennial oscillations (QBOs) are considered as a fundamental mode of solar magnetic activity at low latitudes (). However, the evolutionary aspect and the hemis…