A5076646938- Topological Materials and Phenomena
- Mechanical and Optical Resonators
- Advanced MEMS and NEMS Technologies
- Magnetic properties of thin films
- Physics of Superconductivity and Magnetism
- Advanced Thermodynamics and Statistical Mechanics
- 2D Materials and Applications
- Spectroscopy and Quantum Chemical Studies
- Theoretical and Computational Physics
- Phase-change materials and chalcogenides
- Rare-earth and actinide compounds
- Quantum many-body systems
- Advanced Condensed Matter Physics
- Quantum and electron transport phenomena
- Force Microscopy Techniques and Applications
- Semiconductor Quantum Structures and Devices
- Quantum Information and Cryptography
Boston College
2021-2024
University of Vermont
2020
Recently, a colossal magnetoresistance (CMR) was observed in EuCd$_2$P$_2$ -- compound that does not fit the conventional mixed-valence paradigm. Instead, experimental evidence points at resistance driven by strong magnetic fluctuations within two-dimensional ($2d$) ferromagnetic (FM) planes of layered antiferromagnetic (AFM) structure. While results have yet been fully understood, recent theory relates CMR to topological vortex-antivortex unbinding, i.e., Berezinskii-Kosterlitz-Thouless...
We investigate the magnetic order in single crystalline EuCd$_2$Sb$_2$ thin films using a combined theoretical and experimental approach. Resonant elastic x-ray scattering experiments reveal sharp peak at $q = (0, 0, \frac{1}{2})$ below $T_N 7.2$ K, indicative of interlayer antiferromagnetic ordering. Additionally, we observe weak diffuse signal centered 1)$ that persists above $T_N$, up to $T_C \sim 11$ K. Our Monte-Carlo simulations classical spin model approximation Eu sublattice...
We present a quantum circuit model which emulates the interface growth of classical raise-and-peel model. Our consists Clifford unitary gates interspersed with projective measurements, applied according to prescribed constrained update rules. numerically find via large-scale simulations that, depending on rules, system may undergo several measurement-induced entanglement transitions, including continuous transitions as well second phase transition we interpret using biased random walk...
We present a quantum circuit model which emulates the interface growth of classical raise-and-peel model. Our consists Clifford unitary gates interspersed with projective measurements, applied according to prescribed feedback rules. numerically find via large-scale simulations that, depending on rules, system may undergo several measurement-induced entanglement transitions, including continuous transitions within universality class not previously observed in hybrid random systems as well...
The discovery of spontaneous magnetism in van der Waal (vdW) magnetic monolayers has opened up an unprecedented platform for investigating purely two-dimensional systems. Recently, it been shown that the properties vdW magnets can be easily tuned by adjusting relative composition halides. Motivated these experimental advances, here we derive a model trihalide CrClBrI monolayer from symmetry principles and find that, contrast to its single-halide counterparts, display highly anisotropic...
We consider a Hamiltonian description of the vibrations clamped, elastic circular plate. The this system features potential energy with two distinct contributions: one that depends on local mean curvature plate and second its Gaussian curvature. quantize model using complete, orthonormal set eigenfunctions for vibrating resulting quanta are flexural phonons thin As an application, we use quantized to calculate fluctuations in displacement arbitrary temperature. compare fluctuation profile...