11 citations · 18 across the 11 of their papers we have counts for
12 papers
Resonance-enhanced super-superexchange yields giant chiral magnon splitting in rutile altermagnets
Dai Q. Ho, D. Quang To, Byungkyun Kang +3
Altermagnets host momentum-selective spin splitting and chiral-split magnonic excitations despite vanishing net magnetization, enabling spin transport without ferromagnetism. In ru…
Anisotropy reduction and tunability of hole-spin qubit g-factor in strained parabolic Ge/SiGe quantum wells
R. K. L. Colmenar, Arthur Lin, Omadillo Abdurazakov +3
Hole-spin qubits in planar Ge/SiGe heterostructures have attracted significant attention in recent years owing to their favorable electrical characteristics and prolonged coherence…
A modified Lindblad equation for a Rabi driven electron-spin qubit with tunneling to a Markovian lead
Emily Townsend, Joshua Pomeroy, Garnett W. Bryant
We derive a modified Lindblad equation for the state of quantum dot tunnel coupled to a Markovian lead when the spin state of the dot is driven by an oscillating magnetic field. We…
Quantum geometric origins of the orbital degrees of freedom of hybrid bosonic quasiparticles in magnetic systems
D. Quang To, Dai Q. Ho, Joshua M. O. Zide +5
The orbital degree of freedom has recently attracted significant attention due to the novel phenomena it enables in condensed matter systems. However, the interpretation of the orb…
Probing Magnetic Properties of RuO Heterostructures Through the Ferromagnetic Layer
Frank M. Abel, Subhash Bhatt, Shelby S. Fields +20
RuO has been proposed as the prototypical altermagnetic material. However, several reports have recently questioned its intrinsic magnetic ordering, leading to conflicting fi…
A method for determining the Zeeman splitting of a spin qubit via Rabi-driven tunneling
Emily Townsend, Joshua Pomeroy, Garnett W. Bryant
We show that resonant driving between the spin up and spin down states of an electron spin-qubit in a quantum dot reduces the occupancy of the dot through leakage to an appropriate…
Atomistic tight-binding Hartree-Fock calculations of multielectron configurations in P-doped silicon devices: wavefunction reshaping
Maicol A. Ochoa, Keyi Liu, Piotr Różański +2
Donor-based quantum devices in silicon are attractive platforms for universal quantum computing and analog quantum simulations. The nearly-atomic precision in dopant placement prom…
Symmetry-breaking induced surface magnetization in non-magnetic RuO
Dai Q. Ho, D. Quang To, Ruiqi Hu +2
Altermagnetism is a newly identified phase of magnetism distinct from ferromagnetism and antiferromagnetism. RuO has been considered a prototypical metallic altermagnet with a…
Tunable magnon band topology and magnon orbital Nernst effect in noncollinear antiferromagnets
D. Quang To, Dai Q. Ho, Joshua M. O. Zide +5
We theoretically investigate the intrinsic magnon orbital Nernst effect (ONE) in noncollinear antiferromagnets with Kagomé spin systems. Our analysis reveals that an externally app…
Electric polarization induced by magnons and magnon Nernst effects
D. Quang To, Federico Garcia-Gaitan, Yafei Ren +5
Magnons offer a promising path toward energy-efficient information transmission and the development of next-generation classical and quantum computing technologies. However, method…
Disorder-resilient transport through dopant arrays in silicon
Michał Gawełczyk, Garnett W. Bryant, Michał Zieliński
Chains and arrays of phosphorus donors in silicon have recently been used to demonstrate dopant-based quantum simulators. The dopant disorder present in fabricated devices must be…
Magneto-optics of a charge-tunable quantum dot: Observation of a negative diamagnetic shift
Giora Peniakov, Ayal Beck, Eilon Poem +5
We present magneto-optical studies of a self-assembled semiconductor quantum dot in neutral and positively charged states. The diamagnetic shifts and Zeeman splitting of many well-…