Publications (49)
Growth and characterization of large (Y,La)TiO and (Y,Ca)TiO single crystals
S. Hameed, J. Joe, L. R. Thoutam +12
The Mott-insulating rare-earth titanates (RTiO, R being a rare-earth ion) are an important class of materials that encompasses interesting spin-orbital phases as well as ferrom…
Effects of Mirror Aberrations on Laguerre-Gaussian Beams in Interferometric Gravitational-Wave Detectors
T. Hong, J. Miller, H. Yamamoto +2
A fundamental limit to the sensitivity of optical interferometers is imposed by Brownian thermal fluctuations of the mirrors' surfaces. This thermal noise can be reduced by using l…
Application of a Hough search for continuous gravitational waves on data from the 5th LIGO science run
The LIGO Scientific Collaboration, The Virgo Collaboration, J. Aasi +876
We report on an all-sky search for periodic gravitational waves in the frequency range with the first derivative of frequency in the range $-8.9 \times 10^{-1…
Search for long-lived gravitational-wave transients coincident with long gamma-ray bursts
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +875
Long gamma-ray bursts (GRBs) have been linked to extreme core-collapse supernovae from massive stars. Gravitational waves (GW) offer a probe of the physics behind long GRBs. We inv…
Searching for stochastic gravitational waves using data from the two co-located LIGO Hanford detectors
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +873
Searches for a stochastic gravitational-wave background (SGWB) using terrestrial detectors typically involve cross-correlating data from pairs of detectors. The sensitivity of such…
Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600-1000 Hz
J. Abadie, B. P. Abbott, R. Abbott +782
A stochastic background of gravitational waves is expected to arise from a superposition of many incoherent sources of gravitational waves, of either cosmological or astrophysical…
Implications For The Origin Of GRB 051103 From LIGO Observations
The LIGO Scientific Collaboration, J. Abadie, B. P. Abbott +568
We present the results of a LIGO search for gravitational waves (GWs) associated with GRB 051103, a short-duration hard-spectrum gamma-ray burst (GRB) whose electromagnetically det…
Search for gravitational waves associated with gamma-ray bursts during LIGO science run 6 and Virgo science runs 2 and 3
The LIGO Scientific Collaboration, Virgo Collaboration, J. Abadie +807
We present the results of a search for gravitational waves associated with 154 gamma-ray bursts (GRBs) that were detected by satellite-based gamma-ray experiments in 2009-2010, dur…
Nature of the ferromagnetic-antiferromagnetic transition in YLaTiO
S. Hameed, S. El-Khatib, K. P. Olson +18
We explore the magnetically-ordered ground state of the isovalently-substituted Mott-insulator YLaTiO for 0.3 via single crystal growth, magnetometry…
Disorder-Driven Loss of Phase Coherence in a Quasi-2D Cold Atom System
M. C. Beeler, M. E. W. Reed, T. Hong +1
We study the order parameter of a quasi-2D gas of ultracold atoms trapped in an optical potential in the presence of controllable disorder. Our results show that disorder drives ph…
First Searches for Optical Counterparts to Gravitational-wave Candidate Events
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +904
During the LIGO and Virgo joint science runs in 2009-2010, gravitational wave (GW) data from three interferometer detectors were analyzed within minutes to select GW candidate even…
Magnetic properties of the S=1/2 quasi square lattice antiferromagnet CuF2(H2O)2(pyz) (pyz=pyrazine) investigated by neutron scattering
C. H. Wang, M. D. Lumsden, R. S. Fishman +9
We have performed elastic and inelastic neutron experiments on single crystal samples of the coordination polymer compound CuF2(H2O)2(pyz) (pyz=pyrazine) to study the magnetic stru…
Coexistence and interaction of spinons and magnons in an antiferromagnet with alternating antiferromagnetic and ferromagnetic quantum spin chains
H. Zhang, Z. Zhao, D. Gautreau +10
In conventional quasi-one-dimensional antiferromagnets with quantum spins, magnetic excitations are carried by either magnons or spinons in different energy regimes: they do not co…
Spin dynamics near a putative antiferromagnetic quantum critical point in Cu substituted BaFeAs and its relation to high-temperature superconductivity
M. G. Kim, M. Wang, G. S. Tucker +15
We present the results of elastic and inelastic neutron scattering measurements on non-superconducting Ba(FeCu)As, a composition close to a quan…
Magnetic ground states and magnetodielectric effect in Cr(BO) ( = Y and Ho)
R. Sinclair, H. D. Zhou, M. Lee +4
The layered perovskites Cr(BO) ( = Y and Ho) with magnetic triangular lattices were studied by performing ac/dc susceptibility, specific heat, elastic and inelastic n…
The characterization of Virgo data and its impact on gravitational-wave searches
J. Aasi, J. Abadie, B. P. Abbott +798
Between 2007 and 2010 Virgo collected data in coincidence with the LIGO and GEO gravitational-wave (GW) detectors. These data have been searched for GWs emitted by cataclysmic phen…
Protocol Stack Perspective For Low Latency and Massive Connectivity in Future Cellular Networks
Syed Waqas Haider Shah, Adnan Noor Mian, Shahid Mumtaz +3
With the emergence of Internet-of-Things (IoT) and ever-increasing demand for the newly connected devices, there is a need for more effective storage and processing paradigms to co…
Constraints on cosmic strings from the LIGO-Virgo gravitational-wave detectors
J. Aasi, J. Abadie, B. P. Abbott +873
Cosmic strings can give rise to a large variety of interesting astrophysical phenomena. Among them, powerful bursts of gravitational waves (GWs) produced by cusps are a promising o…
A First Search for coincident Gravitational Waves and High Energy Neutrinos using LIGO, Virgo and ANTARES data from 2007
The ANTARES Collaboration, the LIGO Scientific Collaboration, the Virgo Collaboration +959
We present the results of the first search for gravitational wave bursts associated with high energy neutrinos. Together, these messengers could reveal new, hidden sources that are…
All-sky search for gravitational-wave bursts in the second joint LIGO-Virgo run
the LIGO Scientific Collaboration, the Virgo Collaboration, J. Abadie +786
We present results from a search for gravitational-wave bursts in the data collected by the LIGO and Virgo detectors between July 7, 2009 and October 20, 2010: data are analyzed wh…
Structural and Magnetic Phase Transitions in CeCu ( = Ag, Pd)
L. Poudel, C. de la Cruz, E. A. Payzant +18
The structural and the magnetic properties of CeCuAg (0 0.85) and CeCuPd (0 0.4) have been studied using neutron diffrac…
Characterization of the LIGO detectors during their sixth science run
The LIGO Scientific Collaboration, The Virgo Collaboration, J. Aasi +867
In 2009-2010, the Laser Interferometer Gravitational-wave Observa- tory (LIGO) operated together with international partners Virgo and GEO600 as a network to search for gravitation…
Search for Gravitational Waves from Intermediate Mass Binary Black Holes
the LIGO Scientific Collaboration, the Virgo Collaboration, J. Abadie +790
We present the results of a weakly modeled burst search for gravitational waves from mergers of non-spinning intermediate mass black holes (IMBH) in the total mass range 100--450 s…
Long-range order and spin-liquid states of polycrystalline TbTiO
T. Taniguchi, H. Kadowaki, H. Takatsu +11
Low-temperature states of polycrystalline samples of a frustrated pyrochlore oxide TbTiO have been investigated by specific heat, magnetic susceptibility, a…
Magnetic Phase Transition in the Low Dimensional Compound BaMn2Si2O7
J. Ma, C. D. Dela Cruz, T. Hong +7
The structural and magnetic properties of BaMn2Si2O7 have been investigated. The magnetic susceptibility and specific heat, measured using single crystals, suggest that the quasi-o…
The 2MASS Tully-Fisher Survey : Mapping the Mass in the Universe
T. Hong, L. Staveley-Smith, K. Masters +5
The 2MASS Tully-Fisher Survey (2MTF) aims to measure Tully-Fisher (TF) distances for all bright inclined spirals in the 2MASS Redshift Survey (2MRS) using high quality HI widths an…
The correlation function of galaxy clusters and detection of baryon acoustic oscillations
T. Hong, J. L. Han, Z. L. Wen +2
We calculate the correlation function of 13,904 galaxy clusters of z \leq 0.4 selected from the cluster catalog of Wen, Han & Liu. The correlation function can be fitted with a pow…
Beating the spin-down limit on gravitational wave emission from the Vela pulsar
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Abadie +747
We present direct upper limits on continuous gravitational wave emission from the Vela pulsar using data from the Virgo detector's second science run. These upper limits have been…
Search for Gravitational Wave Bursts from Six Magnetars
J. Abadie, B. P. Abbott, R. Abbott +765
Soft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are thought to be magnetars: neutron stars powered by extreme magnetic fields. These rare objects are characterized b…
Magnons and a two-component spin gap in FeV2O4
G. J. MacDougall, I. Brodsky, A. A. Aczel +6
The spinel vanadates have become a model family for exploring orbital order on the frustrated pyrochlore lattice, and recent debate has focused on the symmetry of local crystal fie…
Evolution of the magnetic and structural properties of FeCoVO
R. Sinclair, J. Ma, H. B. Cao +4
The magnetic and structural properties of single crystal FeCoVO samples have been investigated by performing specific heat, susceptibility, neutron diffractio…
Search for Gravitational Waves from Binary Black Hole Inspiral, Merger and Ringdown in LIGO-Virgo Data from 2009-2010
The LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +800
We report a search for gravitational waves from the inspiral, merger and ringdown of binary black holes (BBH) with total mass between 25 and 100 solar masses, in data taken at the…
Magnetic structure and spin dynamics of the quasi-2D antiferromagnet Zn-doped copper pyrovanadate
G. Gitgeatpong, Y. Zhao, J. A. Fernandez-Baca +6
Magnetic properties of the antiferromagnet ZnCuVO (ZnCVO) have been thoroughly investigated on powder and single-crystal samples. The crystal structure de…
All-sky Search for Periodic Gravitational Waves in the Full S5 LIGO Data
J. Abadie, B. P. Abbott, R. Abbott +794
We report on an all-sky search for periodic gravitational waves in the frequency band 50-800 Hz and with the frequency time derivative in the range of 0 through -6e-9 Hz/s. Such a…
Effect of random antiferromagnetic exchange on the spin waves in a three-dimensional Heisenberg ferromagnet
S. Hameed, Z. Wang, D. M. Gautreau +12
Neutron scattering is used to study spin waves in the three-dimensional Heisenberg ferromagnet YTiO, with spin-spin exchange disorder introduced La-substitution at the Y…
Jiamusi pulsar observations: III. Nulling of 20 pulsars
P. F. Wang, J. L. Han, L. Han +12
Most of pulsar nulling observations were conducted at frequencies lower than 1400~MHz. We aim to understand the nulling behaviors of pulsars at relatively high frequency, and to ch…
Colossal magnetoresistance in a Mott insulator via magnetic field-driven insulator-metal transition
M. Zhu, J. Peng, T. Zou +6
We present a new type of colossal magnetoresistance (CMR) arising from an anomalous collapse of the Mott insulating state via a modest magnetic field in a bilayer ruthenate, Ti-dop…
Implementation and testing of the first prompt search for gravitational wave transients with electromagnetic counterparts
The LIGO Scientific Collaboration, Virgo Collaboration, J. Abadie +815
Aims. A transient astrophysical event observed in both gravitational wave (GW) and electromagnetic (EM) channels would yield rich scientific rewards. A first program initiating EM…
Magnetic dispersion and anisotropy in multiferroic BiFeO3
M. Matsuda, R. S. Fishman, T. Hong +5
We have determined the full magnetic dispersion relations of multiferroic BiFeO3. In particular, two excitation gaps originating from magnetic anisotropies have been clearly observ…
Crystals for neutron scattering studies of quantum magnetism
T. Yankova, D. Huvonen, S. Muhlbauer +8
We review a strategy for targeted synthesis of large single crystal samples of prototype quantum magnets for inelastic neutron scattering experiments. Four case studies of organic…
Gravitational waves from known pulsars: results from the initial detector era
J. Aasi, J. Abadie, B. P. Abbott +892
We present the results of searches for gravitational waves from a large selection of pulsars using data from the most recent science runs (S6, VSR2 and VSR4) of the initial generat…
Search for Gravitational Waves from Low Mass Compact Binary Coalescence in LIGO's Sixth Science Run and Virgo's Science Runs 2 and 3
the LIGO Scientific Collaboration, the Virgo Collaboration, J. Abadie +796
We report on a search for gravitational waves from coalescing compact binaries using LIGO and Virgo observations between July 7, 2009 and October 20, 2010. We searched for signals…
Swift follow-up observations of candidate gravitational-wave transient events
P. A. Evans, J. K. Fridriksson, N. Gehrels +813
We present the first multi-wavelength follow-up observations of two candidate gravitational-wave (GW) transient events recorded by LIGO and Virgo in their 2009-2010 science run. Th…
Einstein@Home all-sky search for periodic gravitational waves in LIGO S5 data
J. Aasi, J. Abadie, B. P. Abbott +794
This paper presents results of an all-sky searches for periodic gravitational waves in the frequency range [50, 1190] Hz and with frequency derivative ranges of [-2 x 10^-9, 1.1 x…
Parameter estimation for compact binary coalescence signals with the first generation gravitational-wave detector network
the LIGO Scientific Collaboration, the Virgo Collaboration, J. Aasi +801
Compact binary systems with neutron stars or black holes are one of the most promising sources for ground-based gravitational wave detectors. Gravitational radiation encodes rich i…
Magnetic Properties of the low dimensional BaMSiO(M= Cu, Co, Mn) system
G. H. Wang, C. Y. Xu, H. B. Cao +8
We performed susceptibility, magnetization, specific heat, and single crystal neutron diffraction measurements on single crystalline BaMnSiO. Based on the results, we r…
Data-Driven Key Performance Indicators and Datasets for Building Energy Flexibility: A Review and Perspectives
H. Li, H. Johra, F. de Andrade Pereira +15
Energy flexibility, through short-term demand-side management (DSM) and energy storage technologies, is now seen as a major key to balancing the fluctuating supply in different ene…
Evolution of magnetic-field-induced ordering in the layered structure quantum Heisenberg triangular-lattice antiferromagnet BaCoSbO
N. A. Fortune, Q. Huang, T. Hong +7
Quantum fluctuations in the effective spin one-half layered structure triangular-lattice quantum Heisenberg antiferromagnet BaCoSbO lift the classical degeneracy of the…
A directed search for continuous Gravitational Waves from the Galactic Center
The LIGO Scientific Collaboration, The Virgo Collaboration, J. Aasi +871
We present the results of a directed search for continuous gravitational waves from unknown, isolated neutron stars in the Galactic Center region, performed on two years of data fr…