175 citations · 970 across the 31 of their papers we have counts for
31 papers
Probing GHz Spin Dynamics Across Magnetic Phase Transitions in CrCl3 Nanoflakes Using Nitrogen-Vacancy Microscopy
Benjamin Hammons, Jitender Kumar, Sehrish Iqbal +11
CrCl3, a layered van der Waals (vdW) magnet, exhibits in-plane magnetic anisotropy and enhanced interlayer coupling upon stacking, making it an ideal platform to host exotic nanosc…
Spin Dynamics in the van der Waals Ferromagnet CrTe2 Engineered by Niobium Doping
Dhan Raj Lawati, Prem Bahadur Karki, Jitender Kumar +14
Understanding and controlling spin dynamics in two-dimensional (2D) van der Waals (vdW) ferromagnets is essential for their application in magnonics and hybrid quantum platforms. H…
Nitrogen-Vacancy Magnetometry of Edge Magnetism in WS2 Flakes
Ilja Fescenko, Raman Kumar, Thitinun Gas-Osoth +15
Two-dimensional (2D) magnets are of significant interest both as a platform for exploring novel fundamental physics and for their potential in spintronic and optoelectronic devices…
Effect of Magnetic Anisotropy and Gradient-Induced Dzyaloshinskii-Moriya Interaction on the Formation of Magnetic Skyrmions
Adam Erickson, Qihan Zhang, Hamed Vakili +10
Topological spin textures (e.g. skyrmions) can be stabilized by interfacial Dzyaloshinskii-Moriya interaction (DMI) in the magnetic multilayer, which has been intensively studied.…
Giant Topological Hall Effect Across Wide Temperature in Pt/NiCo2O4 Heterostructure
Bharat Giri, Ahsan Ullah, Jing Li +10
Topological Hall effect (THE), a quantum phenomenon arising from emergent magnetic field generated by topological spin texture, is a key method for detecting non-coplanar spin stru…
Time-resolved diamond magnetic microscopy of superparamagnetic iron-oxide nanoparticles
B. A. Richards, N. Ristoff, J. Smits +19
Superparamagnetic iron-oxide nanoparticles (SPIONs) are promising probes for biomedical imaging, but the heterogeneity of their magnetic properties is difficult to characterize wit…
Imaging Local Effects of Voltage and Boron Doping on Spin Reversal in Antiferromagnetic Magnetoelectric Cr2O3 Thin Films and Devices
Adam Erickson, Syed Qamar Abbas Shah, Ather Mahmood +5
Chromia (Cr2O3) is a magnetoelectric oxide which permits voltage-control of the antiferromagnetic (AFM) order, but it suffers technological constraints due to its low Neel Temperat…
Effect of Substrate on Spin-Wave Propagation Properties in Ferrimagnetic Thulium Iron Garnet Thin Films
Rupak Timalsina, Bharat Giri, Haohan Wang +7
Rare-earth iron garnets have distinctive spin-wave (SW) properties such as low magnetic damping and long SW coherence length making them ideal candidates for magnonics. Among them,…
Plasmonic Nanocavity to Boost Single Photon Emission from Defects in Thin Hexagonal Boron Nitride
Mohammadjavad Dowran, Ufuk Kilic, Suvechhya Lamichhane +6
Efficient and compact single photon emission platforms operating at room temperature with ultrafast speed and high brightness will be fundamental components of the emerging quantum…
Room Temperature Magnetic Skyrmions in Gradient-Composition Engineered CoPt Single Layers
Adam Erickson, Qihan Zhang, Hamed Vakili +12
Topologically protected magnetic skyrmions in magnetic materials are stabilized by interfacial or bulk Dzyaloshinskii-Moriya interaction (DMI). Interfacial DMI decays with increase…
Magnetic Relaxometry of Methemoglobin by Widefield Nitrogen-Vacancy Microscopy
Suvechhya Lamichhane, Evelyn Carreto Guevara, Ilja Fescenko +3
Hemoglobin (Hb) is a multifaceted protein, classified as a metalloprotein, chromoprotein, and globulin. It incorporates iron, which plays a crucial role in transporting oxygen with…
Nitrogen-Vacancy Magnetic Relaxometry of Nanoclustered Cytochrome C Proteins
Suvechhya Lamichhane, Rupak Timalsina, Cody Schultz +5
Nitrogen-vacancy (NV) magnetometry offers an alternative tool to detect paramagnetic centers in cells with a favorable combination of magnetic sensitivity and spatial resolution. H…
Mapping of Spin-Wave Transport in Thulium Iron Garnet Thin Films Using Diamond Quantum Microscopy
Rupak Timalsina, Haohan Wang, Bharat Giri +3
Spin waves, collective dynamic magnetic excitations, offer crucial insights into magnetic material properties. Rare-earth iron garnets offer an ideal spin-wave (SW) platform with l…
Unraveling the formation dynamics of metallic femtosecond laser induced periodic surface structures
L. Khosravi Khorashad, A. Reicks, A. Erickson +6
Femtosecond laser surface processing (FLSP) is an emerging fabrication technique to efficiently control the surface morphology of many types of materials including metals. However,…
Plasmon Enhanced Quantum Properties of Single Photon Emitters with Hybrid Hexagonal Boron Nitride Silver Nanocube Systems
Mohammadjavad Dowran, Andrew Butler, Suvechhya Lamichhane +5
Hexagonal boron nitride (hBN) has emerged as a promising ultrathin host of single photon emitters (SPEs) with favorable quantum properties at room temperature, making it a highly d…
Nitrogen-vacancy magnetometry of individual Fe-triazole spin crossover nanorods
Suvechhya Lamichhane, Kayleigh A McElveen, Adam Erickson +7
[Fe(Htrz)2(trz)](BF4) (Fe-triazole) spin crossover molecules show thermal, electrical, and optical switching between high spin (HS) and low spin (LS) states, making them promising…
An efficient and low-cost method to create high-density nitrogen-vacancy centers in CVD diamond for sensing applications
Prem Bahadur Karki, Rupak Timalsina, Mohammadjavad Dowran +3
The negatively charged Nitrogen-Vacancy (NV-) center in diamond is one of the most versatile and robust quantum sensors suitable for quantum technologies, including magnetic field…
Nanoscale imaging of antiferromagnetic domains in epitaxial films of Cr2O3 via scanning diamond magnetic probe microscopy
Adam Erickson, Syed Qamar Abbas Shah, Ather Mahmood +4
We report direct imaging of boundary magnetization associated with antiferromagnetic domains in magnetoelectric epitaxial Cr2O3 thin films using diamond nitrogen vacancy microscopy…
Two-dimensional nuclear magnetic resonance spectroscopy with a microfluidic diamond quantum sensor
Janis Smits, Joshua Damron, Pauli Kehayias +7
Quantum sensors based on nitrogen-vacancy centers in diamond have emerged as a promising detection modality for nuclear magnetic resonance (NMR) spectroscopy owing to their micron-…
Diamond magnetic microscopy of malarial hemozoin nanocrystals
Ilja Fescenko, Abdelghani Laraoui, Janis Smits +6
Magnetic microscopy of malarial hemozoin nanocrystals was performed using optically detected magnetic resonance imaging of near-surface diamond nitrogen-vacancy centers. Hemozoin c…
Long-distance excitation of nitrogen-vacancy centers in diamond via surface spin waves
Daisuke Kikuchi, Dwi Prananto, Kunitaka Hayashi +7
Coherent communication over mesoscale distances is a necessary condition for the application of solid-state spin qubits to scalable quantum information processing. Among other rout…
Approach to Dark Spin Cooling in a Diamond Nanocrystal
Abdelghani Laraoui, Carlos A. Meriles
Using a Hartman-Hahn protocol, we demonstrate spin polarization transfer from a single, optically-polarized nitrogen-vacancy (NV) center to the ensemble of paramagnetic defects hos…
Optical patterning of trapped charge in nitrogen-doped diamond
Harishankar Jayakumar, Jacob Henshaw, Siddharth Dhomkar +6
The nitrogen-vacancy (NV) centre in diamond is emerging as a promising platform for solid-state quantum information processing and nanoscale metrology. Of interest in these applica…
Imaging nuclear spins weakly coupled to a probe paramagnetic center
Abdelghani Laraoui, Daniela Pagliero, Carlos A. Meriles
Optically-detected paramagnetic centers in wide-bandgap semiconductors are emerging as a promising platform for nanoscale metrology at room temperature. Of particular interest are…