54 citations · 134 across the 15 of their papers we have counts for
15 papers
Room-temperature multistage metastability in a moiré superstructure
B. Q. Lv, Yifan Su, Alfred Zong +16
Metastability is fundamental not only to phase ordering and transitions, but also to a broad range of modern technologies, from memory devices to metallic glasses. In condensed-mat…
Stoichiometry-Controlled Structural Order and Tunable Antiferromagnetism in ()
Xiaotong Xu, Bei Jiang, Runze Wang +4
Transition metal dichalcogenides (TMDs) enable magnetic property engineering via intercalation, but stoichiometry-structure-magnetism correlations remain poorly defined for Fe-inte…
Bidirectional ultrafast control of charge density waves via phase competition
Honglie Ning, Kyoung Hun Oh, Yifan Su +17
The intricate competition between coexisting charge density waves (CDWs) can lead to rich phenomena, offering unique opportunities for phase manipulation through electromagnetic st…
Dynamics of a jointly commensurate moiré charge density wave
Kyoung Hun Oh, Yifan Su, Honglie Ning +23
The advent of two-dimensional moiré systems has revolutionized the exploration of phenomena arising from strong correlations and nontrivial band topology. Recently, a moiré superst…
Higgs-mode electromagnon in the spin-spiral multiferroic CuBr
Bryan T. Fichera, Ajesh Kumar, Baiqing Lv +8
Below a continuous symmetry breaking phase transition, the relevant collective excitations are due to longitudinal and transverse fluctuations of the order parameter, which are ref…
Automated Polarization Rotation for Multi-Axis Rotational-Anisotropy Second Harmonic Generation Experiments
Karna A. Morey, Bryan T. Fichera, Baiqing Lv +2
Rotational anisotropy second harmonic generation (RA-SHG) is a nonlinear optical technique used to probe the symmetry of condensed matter systems. Measuring the dependence of the S…
Time-domain identification of distinct mechanisms for competing charge density waves in a rare-earth tritelluride
Yifan Su, B. Q. Lv, Alfred Zong +11
Understanding the origin of phase transitions and the interactions between distinct phases remains a central task in condensed matter physics. Charge density wave (CDW) systems pro…
Light-induced reorientation transition in an antiferromagnetic semiconductor
Bryan T. Fichera, Baiqing Lv, Karna Morey +18
Due to the lack of a net magnetic moment, antiferromagnets possess a unique robustness to external magnetic fields and are thus predicted to play an important role in future magnet…
Large moiré superstructure of stacked incommensurate charge density waves
B. Q. Lv, Yifan Su, Alfred Zong +10
Recent advances in van der Waals heterostructures have opened the new frontier of moiré physics, whereby tuning the interlayer twist angle or adjusting lattice parameter mismatch h…
Direct observation of a photoinduced topological phase transition in Bi-doped (Pb,Sn)Se
Masataka Mogi, Dongsung Choi, Louis Primeau +6
Ultrafast photoexcitation offers a novel approach to manipulating quantum materials. One of the long-standing goals in this field is to achieve optical control over topological pro…
Core-level signature of long-range density-wave order and short-range excitonic correlations probed by attosecond broadband spectroscopy
Alfred Zong, Sheng-Chih Lin, Shunsuke A. Sato +9
Advances in attosecond core-level spectroscopies have successfully unlocked the fastest dynamics involving high-energy electrons. Yet, these techniques are not conventionally regar…
Direct observation of Floquet-Bloch states in monolayer graphene
Dongsung Choi, Masataka Mogi, Umberto De Giovannini +6
Floquet engineering is a novel method of manipulating quantum phases of matter via periodic driving [1, 2]. It has successfully been utilized in different platforms ranging from ph…
Coexistence of interacting charge density waves in a layered semiconductor
B. Q. Lv, Alfred Zong, Dong Wu +14
Coexisting orders are key features of strongly correlated materials and underlie many intriguing phenomena from unconventional superconductivity to topological orders. Here, we rep…
Room-temperature non-volatile optical manipulation of polar order in a charge density wave
Qiaomei Liu, Dong Wu, Tianyi Wu +19
Utilizing ultrafast light-matter interaction to manipulate electronic states of quantum materials is an emerging area of research in condensed matter physics. It has significant im…
Unconventional hysteretic transition in a charge density wave
B. Q. Lv, Alfred Zong, D. Wu +25
Hysteresis underlies a large number of phase transitions in solids, giving rise to exotic metastable states that are otherwise inaccessible. Here, we report an unconventional hyste…