64 citations · 467 across the 31 of their papers we have counts for
32 papers
Inductance Meets Memory in the Quantum Magnet Mn3Si2Te6
Tristan R. Cao, Gabriel Schebel, Arabella Quane +5
Orbital degrees of freedom offer a largely untapped route to emergent dynamical phenomena in correlated quantum materials. However, it remains unclear whether collective orbital st…
Magnetic excitations in the Kitaev material NaIrO studied by neutron scattering
Alexandre Bertin, Hengdi Zhao, Gang Cao +4
Inelastic neutron scattering experiments with a large set of comounted NaIrO crystals reveal the low-energy magnon dispersion in this candidate material for Kitaev physics.…
Hidden Density-Wave Instability in the Trimer Ruthenate BaRuO
Gang Cao, Hengdi Zhao, Adrienne Bond +9
We report a hidden density-wave instability in the trimer-based ruthenate Ba4Ru3O10, previously regarded as a pure antiferromagnet with a phase transition at TA=100 K. This transit…
Spatio-temporal migration of antiferromagnetic domain walls in Sr2IrO4
Ian Robinson, David Yang, Ross Harder +18
By laser pump-probe time-resolved coherent magnetic X-ray diffraction imaging, we have measured the migration velocity of antiferromagnetic domain walls in the Mott insulator Sr2Ir…
Emergent Inductance from Chiral Orbital Currents in a Bulk Ferrimagnet
Gang Cao, Hengdi Zhao, Yu Zhang +10
We report the discovery of a new form of inductance in the bulk ferrimagnet Mn3Si2Te6, which features strong spin-orbit coupling, large magnetic anisotropy, and pronounced magnetoe…
Dynamical crossover between stretched- and compressed-exponential relaxation in a photoexcited crystal
Tyler Carbin, Joel Herman, Xinshu Zhang +6
Anomalous relaxation is one of the hallmarks of disordered systems. Following perturbation by an external source, many glassy, jammed and amorphous systems relax as a stretched or…
Field-Tailoring Quantum Materials via Magneto-Synthesis: Metastable Metallic and Magnetically Suppressed Phases in a Trimer Iridate
Tristan R. Cao, Hengdi Zhao, Xudong Huai +4
We demonstrate that applying modest magnetic fields during high-temperature crystal growth can profoundly alter the structure and ground state of a spin-orbit-coupled, antiferromag…
Interaction of Magnetic Fields with Spinons in a Fractionalized State
Yu Zhang, Hengdi Zhao, Tristan R. Cao +4
The 4d-electron trimer lattice exhibits either a quantum spin liquid (QSL) or a heavy-fermion strange metal (HFSM) phase, depending on Nb content. In the QSL state, itinerant spino…
A coherent phonon-induced hidden quadrupolar ordered state in CaRuO
H. Ning, O. Mehio, X. Li +5
Ultrafast laser excitation provides a means to transiently realize long-range ordered electronic states of matter that are hidden in thermal equilibrium. Recently, this approach ha…
Anisotropy of Antiferromagnetic Domains in a Spin-orbit Mott Insulator
Longlong Wu, Wei Wang, Tadesse A. Assefa +9
The temperature-dependent behavior of magnetic domains plays an essential role in the magnetic properties of materials, leading to widespread applications. However, experimental me…
Evidence for bootstrap percolation dynamics in a photo-induced phase transition
Tyler Carbin, Xinshu Zhang, Adrian B. Culver +7
Upon intense femtosecond photo-excitation, a many-body system can undergo a phase transition through a non-equilibrium route, but understanding these pathways remains an outstandin…
Transition between heavy-fermion strange metal and quantum spin liquid in a 4d-electron trimer lattice
Hengdi Zhao, Yu Zhang, Pedro Schlottmann +2
We present experimental evidence that a heavy Fermi surface consisting of itinerant, charge-neutral spinons underpins both heavy-fermion-strange-metal (without f electrons) and qua…
Magnetic Structure and Spin Fluctuations in Colossal Magnetoresistance Ferrimagnet Mn3Si2Te6
Feng Ye, Masaaki Matsuda, Zachary Morgan +4
The ferrimagnetic insulator Mn3Si2Te6, which features a Curie temperature Tc at 78 K and a delicate yet consequential magnetic frustration, exhibits colossal magnetoresistance (CMR…
Control of chiral orbital currents in a colossal magnetoresistance material
Yu Zhang, Yifei Ni, Hengdi Zhao +5
Colossal magnetoresistance (CMR) is an extraordinary enhancement of the electric conductivity in the presence of a magnetic field. It is conventionally associated with a field-indu…
Keldysh space control of charge dynamics in a strongly driven Mott insulator
Xinwei Li, Honglie Ning, Omar Mehio +7
The fate of a Mott insulator under strong low frequency optical driving conditions is a fundamental problem in quantum many-body dynamics. Using ultrafast broadband optical spectro…
Mechanical control of physical properties in the van der Waals ferromagnet Cr2Ge2Te6 via application of electric current
Hengdi Zhao, Yifei Ni, Bing Hu +6
Cr2Ge2Te6 is a van der Waals ferromagnet with a Curie temperature at 66 K. Here we report a swift change in the magnetic ground state upon application of small DC electric current,…
Spinons and damped phonons in spin-1/2 quantum-liquid BaIrO observed by Raman scattering
Aaron Sokolik, Sami Hakani, Susmita Roy +5
In spin-1/2 Mott insulators, non-magnetic quantum liquid phases are often argued to arise when the system shows no magnetic ordering, but identifying positive signatures of these p…
The power of flexible lattice in Ca3Ru2O7: Exquisite control of the electrical transport via anisotropic magnetostriction
Hengdi Zhao, Hao Zheng, Jasminka Terzic +5
Ca3Ru2O7 is a correlated and spin-orbit-coupled system with an extraordinary anisotropy. It is both interesting and unique largely because this material exhibits conflicting phenom…
The ground state in a proximity to a possible Kitaev spin liquid: An undistorted honeycomb iridate NaxIrO3 (0.60 < x < 0.80)
Hengdi Zhao, Bing Hu, Feng Ye +3
We report results of our study of a newly synthesized honeycomb iridate NaxIrO3 (0.60 < x < 0.80). Single-crystal NaxIrO3 adopts a honeycomb lattice noticeably without distortions…
Strange electrical transport: Colossal magnetoresistance via avoiding fully polarized magnetization in ferrimagnetic insulator Mn3Si2Te6
Yifei Ni, Hengdi Zhao, Yu Zhang +3
Colossal magnetoresistance is of great fundamental and technological significance and exists mostly in the manganites and a few other materials. Here we report colossal magnetoresi…
Fortuitous partners of antiferromagnetic and Mott states in spin-orbit-coupled Sr2IrO4: A study of Sr2Ir1-xMxO4 (M=Fe or Co)
Bing Hu, Hengdi Zhao, Yu Zhang +3
Sr2IrO4 is an archetypal spin-orbit-coupled Mott insulator with an antiferromagnetic state below 240 K. Here we report results of our study on single crystals of Sr2Ir1-xFexO4 (0<x…
Pseudospin-lattice coupling and electric control of the square-lattice iridate Sr2IrO4
Feng Ye, Christina Hoffmann, Wei Tian +2
is an archetypal spin-orbit-coupled Mott insulator and has been extensively studied in part because of a wide range of predicted novel states. Limited experimental…
Quest for New Quantum States via Field-Editing Technology
Gang Cao, Hengdi Zhao, Bing Hu +4
We report new quantum states in spin-orbit-coupled single crystals that are synthesized using a game-changing technology that "field-edits" crystal structures (borrowing from the p…
Nonequilibrium Orbital Transitions via Applied Electrical Current in Calcium Ruthenate
Hengdi Zhao, Bing Hu, Feng Ye +3
Simultaneous control of structural and physical properties via applied electrical current poses a key, new research topic and technological significance. Studying the spin-orbit-co…