Publications (54)
The magnetic order of a manganese vanadate system with two-dimensional striped triangular lattice
V. O. Garlea, M. A. McGuire, L. D. Sanjeewa +3
Results of magnetization and neutron diffraction measurements of the manganese vanadate system Mn(VO)(OH) are reported. The crystal structure of this compound conta…
Evidence for rare-region physics in the structural and electronic degrees of freedom of the nickelate LaSrNiO
R. J. Spieker, B. Krohnke, D. Zhai +11
We present a diffuse neutron and x-ray scattering study of structural, spin- and charge-density-wave fluctuations in the electrical insulator LaSrNiO. This lamellar…
The Collinear Magnetic Phases of the Geometrically-Frustrated Antiferromagnet CuFeO: The Importance of Stacking
R. S. Fishman, F. Ye, J. A. Fernandez-Baca +2
The correct stacking of hexagonal layers is used to obtain accurate estimates for the exchange and anisotropy parameters of the geometrically-frustrated antiferromagnet CuFeO.…
Order Parameter Criticality of the d=3 Random-Field Ising Antiferromagnet Fe(0.85)Zn(0.15)F2
F. Ye, L. Zhou, S. Larochelle +4
The critical exponent beta =0.16 +- 0.02 for the random-field Ising model order parameter is determined using extinction-free magnetic x-ray scattering for Fe(0.85)Zn(0.15)F2 in ma…
Robust Ferroelectric State in Multiferroic MnZnWO
R. P. Chaudhury, F. Ye, J. A. Fernandez-Baca +5
We report the remarkably robust ferroelectric state in the multiferroic compound MnZnWO. The substitution of the magnetic Mn with nonmagnetic Zn reduc…
Hall effect, edge states and Haldane exclusion statistics in two-dimensional space
F. Ye, P. A. Marchetti, Z. B. Su +1
We clarify the relation between two kinds of statistics for particle excitations in planar systems: the braid statistics of anyons and the Haldane exclusion statistics(HES). It is…
Signature of Magnetic Phase Separation in the Ground State of Pr1-xCaxMnO3
Hao Sha, F. Ye, Pengcheng Dai +6
Neutron scattering has been used to investigate the evolution of the long- and short-range charge-ordered (CO), ferromagnetic (FM), and antiferromagnetic (AF) correlations in singl…
Effect of antiferromagnetic spin correlations on lattice distortion and charge ordering in PrCaMnO
Songxue Chi, F. Ye, Pengcheng Dai +7
We use neutron scattering to study the lattice and magnetic structure of the layered half-doped manganite PrCaMnO. On cooling from high temperature, the system…
Evolution of spin-wave excitations in ferromagnetic metallic manganites
F. Ye, Pengcheng Dai, J. A. Fernandez-Baca +6
Neutron scattering results are presented for spin-wave excitations of three ferromagnetic metallic MnO manganites (where and are rare- and…
Microscopics of Quantum Annealing in the Disordered Dipolar Ising Ferromagnet LiHoYF
S. Säubert, C. L. Sarkis, F. Ye +2
Quantum annealing (QA) refers to an optimization process that uses quantum fluctuations to find the global minimum of a rugged energy landscape with many local minima. Conceptually…
Incommensurate magnetic structure in the orthorhombic perovskite ErMnO_3
F. Ye, B. Lorenz, Q. Huang +6
By combining dielectric, specific heat, and magnetization measurements and high-resolution neutron powder diffraction, we have investigated the thermodynamic and magnetic/structura…
Magnetic and multiferroic phases of single-crystalline MnCoWO
R. P. Chaudhury, F. Ye, J. A. Fernandez-Baca +5
The magnetic and multiferroic phase diagram of MnCoWO single crystals is investigated by means of magnetic, heat capacity, dielectric, polarization, and neutr…
Identifying the multiferroic phase of doped CuFeO_2 using inelastic neutron scattering
J. T. Haraldsen, F. Ye, R. S. Fishman +4
We report inelastic neutron scattering measurements that provide a distinct dynamical "fingerprint" for the multiferroic ground state of 3.5% Ga-doped CuFeO_2. The complex ground s…
Electronically smectic-like phase in a nearly half-doped manganite
F. Ye, J. A. Fernandez-Baca, Pengcheng Dai +5
We use neutron scattering to study the spin and charge/orbital ordering (CO-OO) in the nearly half-doped perovskite manganite (PCSMO). On…
The unusual magnetism of nanoparticle LaCoO3
A. M. Durand, D. P. Belanger, T. J. Hamil +6
Bulk and nanoparticle powders of LaCoO3 (LCO) were synthesized, and their magnetic and structural properties were studied using SQUID magnetometry and neutron diffraction. The bulk…
Helimagnetic Structure and Heavy-Fermion-Like Behavior in the Vicinity of the Quantum Critical Point in MnP
H. Kotegawa, M. Matsuda, F. Ye +13
Antiferromagnet MnP with Neel temperature K is composed of Mn-tetrahedrons and zigzag chains formed by three inequivalent Mn sites. Due to the nearly frustrated lattic…
Symmetry tuning topological states of an axion insulator with noncollinear magnetic order
S. X. M. Riberolles, A. M. NediÄ, B. Kuthanazhi +10
Topological properties of quantum materials are intimately related to symmetry. Here, we tune the magnetic order of the axion insulator candidate EuInAs from its broken-hel…
Charge carriers with fractional exclusion statistics in cuprates
P. A. Marchetti, F. Ye, Z. B. Su +1
We show that in the SU(2)XU(1) spin-charge gauge approach we developed earlier one can attribute consistently an exclusion statistics with parameter 1/2 to the spinless charge carr…
Magnetic Interaction in the Geometrically Frustrated Triangular Lattice Antiferromagnet
F. Ye, J. A. Fernandez-Baca, R. S. Fishman +4
The spin wave excitations of the geometrically frustrated triangular lattice antiferromagnet (TLA) have been measured using high resolution inelastic neutron scatteri…
Hole pairing from attraction of opposite chirality spin vortices: Non-BCS superconductivity in Underdoped Cuprates
P. A. Marchetti, F. Ye, Z. B. Su +1
Within a gauge approach to the t-J model, we propose a new, non-BCS mechanism of superconductivity for underdoped cuprates. We implement the no-double occupancy constraint with a (…
Dynamic nanoscale structural correlations in strontium ruthenate
M. SpaiÄ, R. Spieker, I. BiloniÄ +14
Strontium ruthenate (SrRuO, SRO) has been the subject of intense research as a model quasi-two-dimensional metal with strong electronic correlations and potential exotic mu…
The Geometrically Frustrated Spin Glass (Fe1-pGap)2TiO5
Y. Li, D. Phelan, F. Ye +9
The unusual anisotropy of the spin glass transition in the pseudobrookite system FeTiO has been interpreted as arising from an induced, van der Waals-like, interaction amon…
MiroThinker-1.7 & H1: Towards Heavy-Duty Research Agents via Verification
MiroMind Team, S. Bai, L. Bing +39
We present MiroThinker-1.7, a new research agent designed for complex long-horizon reasoning tasks. Building on this foundation, we further introduce MiroThinker-H1, which extends…
Pressure dependence of the magnetic ground states in MnP
M. Matsuda, F. Ye, S. E. Dissanayake +11
MnP, a superconductor under pressure, exhibits a ferromagnetic order below TC~290 K followed by a helical order with the spins lying in the ab plane and the helical rotation propag…
Magnetic crystalline-symmetry-protected axion electrodynamics and field-tunable unpinned Dirac cones in EuIn2As2
S. X. M. Riberolles, T. V. Trevisan, B. Kuthanazhi +12
Knowledge of magnetic symmetry is vital for exploiting nontrivial surface states of magnetic topological materials. EuInAs is an excellent example, as it is predicted t…
Lattice distortion in the spin-orbital entangled state in RVO3 perovskites
J. -Q. Yan, W. Tian, H. B. Cao +10
We report a thorough study of YLaVO single crystals by measuring magnetic properties, specific heat, thermal conductivity, x-ray and neutron diffraction with th…
Pervasive symmetry-lowering nanoscale structural fluctuations in the cuprate LaSrCuO
R. J. Spieker, M. SpaiÄ, I. Khayr +12
The cuprate superconductors are among the most widely studied quantum materials, yet there remain fundamental open questions regarding their electronic properties and the role of t…
Magnetism in nanoparticle LaCoO3
A. M. Durand, D. P. Belanger, F. Ye +4
LaCoO3 (LCO) nanoparticles were synthesized and their magnetic and structural properties were examined using SQUID magnetometery and neutron diffraction. The nanoparticles exhibit…
Magnetic switching and phase competition in the multiferroic antiferromagnet
F. Ye, Y. Ren, J. A. Fernandez-Baca +6
Elastic neutron scattering is used to study the spin correlations in the multiferroic with and 0.10. The noncollinear, incommensurate (ICM)…
Spin waves throughout the Brillouin zone and magnetic exchange coupling in ferromagnetic metallic manganites LaCaMnO ()
F. Ye, Pengcheng Dai, J. A. Fernandez-Baca +4
Using time-of-flight and triple-axis inelastic neutron spectroscopy, we determine spin wave excitations throughout the Brillouin zone for ferromagnetic manganites LaCaM…
A non-BCS mechanism for superconductivity in underdoped cuprates via attraction between spin vortices
P. A. Marchetti, F. Ye, Z. B. Su +1
We propose a non-BCS mechanism for superconductivity in hole-underdoped cuprates based on a gauge approach to the {\it t-J} model. The gluing force is an attraction between spin vo…
Successive magnetic phase transitions and multiferroicity in Spin-1 triangular lattice antiferromagnet BaNiNbO
J. Hwang, E. S. Choi, F. Ye +4
We report the magnetic and electric properties of BaNiNbO, which is a quasi-two-dimensional spin-1 triangular lattice antiferromagnet (TLAF) with trigonal structure. At…
Quasi-stationary criticality of the Order-Parameter of the d=3 Random-Field Ising Antiferromagnet Fe(0.85)Zn(0.15)F2: A Synchrotron X-ray Scattering Study
F. Ye, L. Zhou, S. A. Meyer +5
The critical exponent beta =0.17(1) for the three-dimensional random-field Ising model (RFIM) order parameter upon zero-field cooling (ZFC) has been determined using extinction-fre…
Inelastic neutron scattering studies of Crystal Field Levels in PrOsAs
Songxue Chi, Pengcheng Dai, T. Barnes +7
We use neutron scattering to study the Pr crystalline electric field (CEF) excitations in the filled skutterudite PrOsAs. By comparing the observed levels and the…
Swirling topological textures of polarization in bulk relaxor ferroelectrics
M. Eremenko, V. Krayzman, S. Gorfman +10
A complete understanding of the mechanisms for dielectric relaxation in relaxor ferroelectrics remains elusive. We used a structural refinement framework that integrates several ty…
Single Crystal Diffuse Neutron Scattering Study of the Dipole-Octupole Quantum Spin Ice Candidate CeZrO: No Apparent Octupolar Correlations Above K
E. M. Smith, R. Schäfer, J. Dudemaine +8
The insulating magnetic pyrochlore CeZrO has gained attention as a quantum spin ice candidate with dipole-octupole character arising from the crystal electric field gro…
Helical magnetic state in the vicinity of the pressure-induced superconducting phase in MnP
S. E. Dissanayake, M. Matsuda, K. Yoshimi +10
MnP is a metal that shows successive magnetic transitions from paramagnetic to ferromagnetic and helical magnetic phases at ambient pressure with decreasing temperature. With appli…
Fluctuation-Induced Interactions and the Spin Glass Transition in
P. G. LaBarre, D. Phelan, Y. Xin +6
We investigate the spin-glass transition in the strongly frustrated well-known compound . A remarkable feature of this transition, widely discussed in the literature, is…
Surface-induced linear magnetoresistance in antiferromagnetic topological insulator MnBi2Te4
X. Lei, L. Zhou, Z. Y. Hao +10
Through a thorough magneto-transport study of antiferromagnetic topological insulator MnBi2Te4 (MBT) thick films, a positive linear magnetoresistance (LMR) with a two-dimensional (…
Magnetic field-induced spontaneous polarization reversal in multiferroic MnCoWO
N. Poudel, K. -C. Liang, Y. -Q. Wang +5
The magnetic and ferroelectric properties of the multiferroic system MnCoWO (x=0.135, 0.15, and 0.17) are studied in magnetic fields oriented along the monocl…
Magnons in Ferromagnetic Metallic Manganites
Jiandi Zhang, F. Ye, Hao Sha +3
Ferromagnetic (FM) manganites, a group of likely half-metallic oxides, are of special interest not only because they are a testing ground of the classical doubleexchange interactio…
Splitting broad beams into arrays of dissipative spatial solitons by material and virtual gratings
Y. J. He, B. A. Malomed, F. Ye +4
We elaborate two generic methods for producing two-dimensional (2D) spatial soliton arrays (SSAs) in the framework of the cubic-quintic (CQ) complex Ginzburg-Landau (CGL) model. Th…
Pressure dependence of the magnetic ground state in CePtSi2
S. E. Dissanayake, F. Ye, W. Tian +7
CePtSi2 was reported to exhibit an antiferromagnetic order below T*=1.8 K at ambient pressure, a valence state change at ~1.2 GPa, and superconductivity in the range between 1.4 an…
Common Crystalline and Magnetic Structure of superconducting A2Fe4Se5
F. Ye, S. Chi, Wei Bao +6
Single crystal neutron diffraction study has been performed on new superconductor A2Fe4Se5, where A = Cs, K, (Tl,Rb) and (Tl,K), and the same Fe vacancy ordered crystal structure a…
Magnetic Vacancy Percolation in Dilute Antiferromagnets
W. C. Barber, F. Ye, D. P. Belanger +1
Neutron scattering experiments at the magnetic vacancy percolation threshold concentration, x_v, using the random-field Ising crystal Fe(0.76)Zn(0.24)F2, show stability of the tran…
The complex multiferroic phase diagram of MnCoWO
K. -C. Liang, Y. Q. Wang, Y. Y. Sun +5
The complete magnetic and multiferroic phase diagram of MnCoWO single crystals is investigated by means of magnetic, heat capacity, and polarization experiments.…
Electronic self-organization in the single-layer manganite
F. Ye, Songxue Chi, J. A. Fernandez-Baca +7
We use neutron scattering to investigate the doping evolution of the magnetic correlations in the single-layer manganite , away from the …
Evolution of Magnetism in Single-Crystal Ca2Ru1-xIrxO4 (0< x <0.65)
S. J. Yuan, J. Terzic, J. C. Wang +4
We report structural, magnetic, transport and thermal properties of single-crystal Ca2Ru1-xIrxO4 (0 < x< 0.65). Ca2RuO4 is a structurally-driven Mott insulator with a metal-insulat…
Observation of linear and nonlinear light localization at the edges of moiré lattices
A. A. Arkhipova, Y. V. Kartashov, S. K. Ivanov +11
We observe linear and nonlinear light localization at the edges and in the corners of truncated moiré lattices created by the superposition of periodic mutually-twisted at Pythago…
Observation of Dipolar Spin-ice--like Correlations in the Quantum Spin Ice Candidate CeSnO
Bo Yuan, M. Powell, X. Liu +9
Ce-pyrochlores, CeXO (X = Sn, Hf, Zr), have gained much recent attention as new quantum spin ice (QSI) ground state candidates. Although the nearest-neighbor (NN) XYZ m…
Non-BCS superconductivity for underdoped cuprates by spin-vortex attraction
P. A. Marchetti, F. Ye, Z. B. Su +1
Within a gauge approach to the t-J model, we propose a new, non-BCS mechanism of superconductivity for underdoped cuprates. The gluing force of the superconducting mechanism is an…
Two-dimensional subwavelength plasmonic lattice solitons
F. Ye, D. Mihalache, B. Hu +1
We present a theoretical study of plasmonic lattice solitons (PLSs) formed in two-dimensional (2D) arrays of metallic nanowires embedded into a nonlinear medium with Kerr nonlinear…
NiSi: New venue for antiferromagnetic spintronics
P. Ghosh, J. Guo, F. Ye +5
Envisaging antiferromagnetic spintronics pivots on two key criteria of high transition temperature and tuning of underlying magnetic order using straightforward application of magn…
The effects of Co3O4 on the Structure and Unusual Magnetism of LaCoO3
A. M. Durand, T. J. Hamil, D. P. Belanger +5
Bulk La_wCoO3 particles with w=1.1, 1.0, 0.9, 0.8, and 0.7 were synthesized using starting materials with varying molar ratios of La2O3 and Co3O4. The resulting particles are chara…