Yong P. Chen
Purdue University
Magnetic fieldPhysicsTopological insulatorGraphene nanoribbonsElectronNanotechnologyAtomic physicsMaterials scienceQuantum Hall effectCondensed matter physicsGrapheneSpectroscopyBose–Einstein condensateRaman spectroscopyOptoelectronicsLandau quantizationChemical vapor depositionQuantum mechanicsSurface statesSpin-½Thermal conductivity
510Publications
64H-index
12.5kCitations
Publications 447
Newest
#1Sumit Suresh KaleH-Index: 1
#2Yong P. ChenH-Index: 64
Last. Sabre Kais (Purdue University)H-Index: 38
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Interferences emerge when multiple pathways coexist together leading towards the same result. A Recent study by Blasing and coworkers [PRL 121(7):073202] showed that in a photo-association reaction of Raman dressed spin orbit coupled ^{87}b Bose Einstein Condensate when the reactant spin state is prepared in a coherent superposition of multiple bare spin states it leads to a destructive interference between reaction pathways. Here we report a theoretical study for a reaction scheme which lead...
#1Xiaohui XuH-Index: 5
Last. Alexandra BoltassevaH-Index: 76
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Two-dimensional hexagonal boron nitride (hBN) that hosts bright room-temperature single-photon emitters (SPEs) is a promising material platform for quantum information applications. An important step towards the practical application of hBN is the on-demand, position-controlled generation of SPEs. Several strategies have been reported to achieve the deterministic creation of hBN SPEs. However, they either rely on a substrate nanopatterning procedure that is not compatible with integrated photoni...
#1Xingyu GaoH-Index: 4
#2Boyang JiangH-Index: 2
Last. Yong P. ChenH-Index: 64
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The recently discovered spin defects in hexagonal boron nitride (hBN), a layered van der Waals material, have great potential in quantum sensing. However, the photoluminescence and the contrast of the optically detected magnetic resonance (ODMR) of hBN spin defects are relatively low so far, which limits their sensitivity. Here we report a record-high ODMR contrast of 46\%at room temperature, and simultaneous enhancement of the photoluminescence of hBN spin defects by up to 17-fold by the sur...
2 Citations
#1Jimin Wang (University of Regensburg)H-Index: 1
#1Jimin Wang (University of Regensburg)H-Index: 9
Last. Dieter Weiss (University of Regensburg)H-Index: 67
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We conducted mobility spectrum analysis on a high quality three dimensional topological insulator film of BiSbTeSe2 to extract mobility μ and carrier density n. Top and bottom gates were applied to tune the carrier density on top and bottom surfaces independently. At 1.5 K, when the conduction is entirely dominated by the Dirac surface states, we always find two dominant conduction channels (top and bottom surfaces), with μ = 500 – 3000 cm2/(V s) and n on the order of 1 0 12 null c m − 2. Howeve...
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#2Dmitry ZemlyanovH-Index: 35
Last. Yong P. ChenH-Index: 64
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Two-dimensional (2D) palladium ditelluride (PdTe2) and platinum ditelluride (PtTe2) are two Dirac semimetals which demonstrate fascinating quantum properties such as superconductivity, magnetism and topological order, illustrating promising applications in future nanoelectronics and optoelectronics. However, the synthesis of their monolayers is dramatically hindered by strong interlayer coupling and orbital hybridization. In this study, an efficient synthesis method for monolayer PdTe2 and PtTe2...
#1Jifa TianH-Index: 69
#2Cüneyt Şahin (UI: University of Iowa)H-Index: 2
Last. Yong P. ChenH-Index: 64
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One of the most fundamental and exotic properties of three-dimensional (3D) topological insulators (TIs) is spin-momentum locking (SML) of their topological surface states (TSSs), promising for potential applications in future spintronics. However, other possible conduction channels, such as a trivial two-dimensional electron gas (2DEG) with strong Rashba-type spin-orbit interaction (SOI) and bulk-conducting states that may possess a spin Hall effect (SHE), can coexist in 3D TIs, making determin...
1 CitationsSource
#1Jiuning HuH-Index: 22
#2Albert F. RigosiH-Index: 18
Last. Yong P. ChenH-Index: 64
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Quantum Boltzmann formalism is employed to study the transport properties of strongly-coupled double layer systems that enable the formation of interlayer excitons and exciton condensation. The importance of exciton formation, dissociation, and condensation is highlighted in the context of thermoelectric power generation, and this mathematical inquiry provides an alternative methodology to calculate the thermoelectric efficiency given the conditions of exciton formation. The Onsager relation for...
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The nanoscale magnetic field of magnons has emerged as a promising resource for coherently driving qubits such as quantum spin defects (QSD) and developing versatile probes for magnetism and other types of quantum matter. Tuning this coupling via electric field would provide a path to address the outstanding challenges of enhancing QSD-based sensing of electric fields and locally manipulating QSD qubits with minimal power. Here, we demonstrate a new approach to such electric field tuning using a...