Article
Chemistry, Multidisciplinary
Kok Wai Chan, Harshad Sahasrabudhe, Wister Huang, Yu Wang, Henry C. Yang, Menno Veldhorst, Jason C. C. Hwang, Fahd A. Mohiyaddin, Fay E. Hudson, Kohei M. Itoh, Andre Saraiva, Andrea Morello, Arne Laucht, Rajib Rahman, Andrew S. Dzurak
Summary: Quantum gates between spin qubits can be implemented through controlled Heisenberg exchange interaction by adjusting the overlap between electronic wave functions. Another approach is to establish coupling between distant spins through mediated superexchange. Experimental evidence in a linear array of three single-electron spin qubits in silicon confirms direct exchange coupling and second neighbor mediated superexchange.
Article
Chemistry, Multidisciplinary
Xiaoyu Yue, Zhongwen Ouyang, Congbin Liu, Lei Yin, Xiaochen Liu, Zhenxing Wang
Summary: A new frustrated spin-cluster antiferromagnet Sr2Co3(C2O4)(3)(OH)(4)·3H(2)O has been synthesized by hydrothermal method. The compound consists of isolated Co-6 clusters connected by oxalate, showing strong frustration and magnetic properties. High-field magnetization curve exhibits two field-induced magnetic transitions at 1.6 K, potentially associated with a 1/3 magnetization plateau.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Multidisciplinary
Sven Dorsch, Artis Svilans, Martin Josefsson, Bahareh Goldozian, Mukesh Kumar, Claes Thelander, Andreas Wacker, Adam Burke
Summary: Studies on thermally induced transport in nanostructures explore the conversion of heat into electrical power, demonstrating the versatility of the design to study fluctuations and fundamental nanothermodynamics. By enhancing the temperature of the phonon bath near the double quantum dot, phonon-assisted transport is enabled while affecting conventional thermoelectric transport. The study shows sensitivity of phonon-assisted transport to excited states.
Article
Physics, Multidisciplinary
Long-Yu Cheng, Fei Ming, Fa Zhao, Liu Ye, Dong Wang
Summary: This study investigates the dynamics of entropic uncertainty and quantum discord in two double quantum dot systems coupled via a transmission line resonator, revealing subtle effects of different parameters on the dynamics of entropic uncertainty and the correlation between quantum discord and the lower bound of entropic uncertainty depending on the initial state of the system.
FRONTIERS OF PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
Faten K. Hachim, Falah H. Hanoon, Amin Habbeb Al-Khursan
Summary: This study explores quantum holography in a ladder-plus-Y double quantum dot system using density matrix theory to model the system and an analytical solution for susceptibility. Various parameters and scenarios were examined, with a comparison to classical holography. The coincidence with transmission amplitude suggests successful holography of the object is achieved.
OPTICAL AND QUANTUM ELECTRONICS
(2021)
Article
Physics, Applied
Zhongwang Wang, Yahua Yuan, Xiaochi Liu, Manoharan Muruganathan, Hiroshi Mizuta, Jian Sun
Summary: In this study, coupled double-quantum dot-like transport was demonstrated in a controllably doped graphene nanoribbon. By utilizing controlled doping and electrically tunable inter-dot coupling, the transition from strongly to weakly coupled double quantum dots was observed.
APPLIED PHYSICS LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Heidi Potts, Markus Aspegren, Rousan Debbarma, Sebastian Lehmann, Claes Thelander
Summary: We investigate tunnel transport spectroscopy on a quantum dot molecule with a superconducting contact. The scattering between quantum dot spins and Bogoliubov quasiparticles leads to the formation of Yu-Shiba-Rusinov states within the superconducting gap. We find that the interaction between inter-dot spin-triplet state and the superconductor is stronger than the corresponding singlet, indicating stronger screening.
Article
Materials Science, Multidisciplinary
Grzegorz Michalek, Bogdan R. Bulka
Summary: The study analyzes the transient electron dynamics and Fano resonance formation over time in transport through a two quantum dot system in a T-shape geometry. It is found that the time evolution of the transport characteristics differs depending on the strength of inter-dot coupling.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Bogdan R. Bulka
Summary: Exact analytical formulas for currents and current correlation functions in a Cooper pair splitter system are derived using Keldysh Green functions, with a focus on noise power spectrum behavior across bias voltage range. In the large voltage limit, shot noise dominates with spectrum exhibiting extraordinary side dips related to resonant interlevel current correlations. The study also shows perfect entanglement of split electrons in two separated crossed Andreev reflection processes.
Article
Physics, Multidisciplinary
Vijay Bhatt, Surabhi Yadav, Pradip K. Jha, Aranya B. Bhattacherjee
Summary: The proposal suggests a scheme to generate strongly sub-Poissonian light through photon blockade in a photonic crystal nanocavity, achieving a second-order correlation function of around 10(-3) by utilizing a large chi ((2)) nonlinearity and optimizing the quantum dot and cavity detuning. This provides a highly tunable and efficient method for single photon source on demand, with potential applications in solid state based quantum information processing.
Article
Materials Science, Multidisciplinary
S. V. Aksenov
Summary: In this study, we investigate the interference transport features of a curved heterostructure in hybrid superconducting/semiconducting nanowires, considering the spatial inhomogeneity of the experimentally investigated samples. By analyzing a set of limiting cases, we highlight the interference properties unique to different types of Andreev bound states (ABSs), including bulk ABS, inhomogeneous ABS, and Majorana bound states (MBS). The features of the Aharonov-Bohm effect are particularly emphasized.
Article
Engineering, Electrical & Electronic
Mohammed A. A. Abbas, Lafy F. Al-Badry, Amin H. Al-Khursan
Summary: This study investigates the carrier capture rates in the double quantum dot structure caused by Coulomb scattering. The results show that the in- and out-scattering processes of the double quantum dot are slowed down by state filling under high tunneling, while moderate tunneling speeds up the processes. In addition, bandgap engineering plays a crucial role in determining the speed of quantum dot processes.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Wonjin Jang, Min-Kyun Cho, Hyeongyu Jang, Jehyun Kim, Jaemin Park, Gyeonghun Kim, Byoungwoo Kang, Hwanchul Jung, Vladimir Umansky, Dohun Kim
Summary: This study presents a high-fidelity readout method for a semiconductor hybrid qubit in GaAs double quantum dots, achieving quantum state mapping with voltage-controlled adiabatic transitions and energy-selective tunneling-based spin-to-charge conversion with a visibility of approximately 92.6%. The research also demonstrates coherent oscillations of a hybrid qubit in GaAs and explores the potential applications of this method in other materials.
Article
Engineering, Electrical & Electronic
Faten K. Hachim, Baqer O. Al-Nashy, Amin Habbeb Al-khursan
Summary: The density matrix theory is used to model slow light in a waveguide with a double quantum dot system. The study considers waveguide and material dispersions, wetting layer-quantum dot transitions, and orthogonalized plane wave between them. Other considerations are not taken. The optical fields between wetting layer-quantum dot states do not contribute to the slowing down effect. Increasing the probe field by one order increases the slowdown factor (S) by three orders and the susceptibility by two orders, indicating the importance of the probe field. Tunneling is more effective than the probe field in controlling susceptibility. This result predicts a new generation of all-optical devices.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Nanoscience & Nanotechnology
S. Abdel-Khalek, K. Berrada, A. Alkaoud
Summary: In this study, the relationship among fidelity, quantum coherence, and Bell nonlocality in double quantum dot systems (DQDs) was examined using transmission line resonator (TLR). The physical quantities were found to depend on the main parameters of the physical model and the initial state parameter of the DQD. Furthermore, total quantum correlation in DQDs was evaluated using skew information, and the time dependence of quantum coherence and correlation on the main physical parameters was demonstrated.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2021)
Article
Chemistry, Physical
Eric J. Gosselin, Gerald E. Decker, Brett W. McNichols, James E. Baumann, Glenn P. A. Yap, Alan Sellinger, Eric D. Bloch
CHEMISTRY OF MATERIALS
(2020)
Article
Chemistry, Physical
Liguo Gao, Tracy H. Schloemer, Fei Zhang, Xihan Chen, Chuanxiao Xiao, Kai Zhu, Alan Sellinger
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Daniel D. Astridge, Jacob B. Hoffman, Fei Zhang, So Yeon Park, Kai Zhu, Alan Sellinger
Summary: The development of low-cost materials with good energetic alignment for charge-selective contacts with perovskite active layers is crucial for efficient photoconversion in perovskite solar cells. This study presents a series of polymers produced through one-pot polymerization, showing promising properties for high performing PSC devices. By carefully selecting reactant chemical moieties, properties such as glass transition temperature and power conversion efficiency can be optimized.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Zhiyuan Huang, Joshua T. Koubek, Alan Sellinger, Matthew C. Beard
Summary: In this study, we successfully prepared dual-amphiphilic PbS QDs with stable Pickering emulsions by constructing Janus-ligand shells. The photocatalytic properties of the QDs were evaluated through the degradation of dye molecules, showing significant degradation in the QD Pickering emulsions compared to PbS QDs without Janus-ligand shells.
ACS APPLIED NANO MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Caleb Chandler, Dominique H. Porcincula, Michael J. Ford, Connor Hook, Xianyi Zhang, Jason Brodsky, Alan Sellinger
Summary: Cationic photopolymerization is utilized for rapid curing of efficient plastic scintillators, achieving high conversion rates under various conditions and exhibiting similar photocuring time scales to commercial products.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Jacob B. Hoffman, Daniel D. Astridge, So Yeon Park, Fei Zhang, Mengjin Yang, David T. Moore, Steven P. Harvey, Kai Zhu, Alan Sellinger
Summary: This article introduces a family of polymers based on either fluorene or carbazole main chains, which have selective aromatic side groups to tune their properties for use as hole transport materials (HTMs) in PSCs. The impact of the HTM properties on PSC performance is explored, and it is found that these polymers perform well and exhibit greater stability compared to the benchmark PTAA.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Anastasia Kuvayskaya, Thomas J. Mallos, Iskander Douair, Christopher Chang, Ross E. Larsen, Mark P. Jensen, Alan Sellinger
Summary: The strength of rare earth-ligand interactions can be tuned by changing the dipole moment of the ligand. A set of aryl-vinyl phosphonic acid ligands were designed and synthesized to extract rare earth elements. Experimental and computational studies were conducted to investigate the metal binding strength of these ligands and their complexes with rare earth metals. The findings suggest that the extraction strength can be systematically altered by changing the dipole moment of the ligands.
INORGANIC CHEMISTRY
(2023)
Article
Instruments & Instrumentation
Jonathan Arrue, Caleb Chandler, Mackenzie Duce, Allison Lim, Alan Sellinger, Anna Erickson
Summary: This study investigates the effect of increased temperature on different polysiloxane-based scintillators. It finds that the KER-6000 resin performs better and PhF is a better dopant than PPO. Polysiloxane scintillators show a slight decrease in LY and an improvement in neutron/gamma discrimination at increased temperatures, while PVT scintillators only experience a decrease in LY without an improvement in neutron/gamma discrimination.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
Article
Engineering, Manufacturing
Caleb Chandler, Dominique H. Porcincula, Michael J. Ford, Thomas J. Kolibaba, Benjamin Fein-Ashley, Jason Brodsky, Jason P. Killgore, Alan Sellinger
Summary: Plastic scintillators used for radiation detection were additively manufactured with vat photopolymerization using photopolymer resins consisting of primary and secondary dopants. The absorptive dopants significantly affected print parameters, with the secondary dopants reducing light penetration depth by more than 12 times. Size-dependent changes in energy dose and successful pulse shape discrimination were observed for printed scintillator samples, which showed comparable performance to traditionally molded scintillators.
ADDITIVE MANUFACTURING
(2023)
Article
Materials Science, Multidisciplinary
Junsoo Park, Zhigang Wu, John W. Lawson
Summary: The electronic mobility and conductivity of S1-xSex were calculated from first principles, showing that with Se alloying, the mobility initially decreases before increasing towards the Se end. Electron transport exhibits a mixture of quantum motion and temperature-activated hopping behavior, transitioning to temperature-activated around x = 0.50. Intrinsic electron conductivity increases monotonically with x, benefiting at most by an order of magnitude up to x = 0.25.
ACS MATERIALS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Zhigang Wu, John W. Lawson
Summary: This study reports on the unresolved problems and proposed solutions when using the ab initio approach to study NiTi alloys. The results show that including the electronic free energy in the Gibbs free energy calculations significantly reduces errors in martensitic transition temperatures and resolves controversies on the ground state of NiTi. Additionally, it is discovered that the martensitic transition path in stoichiometric NiTi is directly from B2 to B19' without intermediate phases.
Article
Chemistry, Physical
Gang Chen, Xinquan Wang, Yuting Shi, Jonathan S. Tinkham, Thomas M. Brenner, Dana C. Olson, Alan Sellinger, Thomas E. Furtak
Summary: The work function of nickel oxide electrodes was modified by attaching silane functionalized molecules with various dipole moments, as confirmed by FTIR spectroscopy and contact angle measurements. Despite incomplete surface coverage, the changes in NiOx work function were significant and correlated well with dipole moments calculated using DFT.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Allison Lim, Jonathan Arrue, Paul B. Rose, Alan Sellinger, Anna S. Erickson
ACS APPLIED POLYMER MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Ross A. Kerner, Tracy H. Schloemer, Philip Schulz, Joseph J. Berry, Jeffrey Schwartz, Alan Sellinger, Barry P. Rand
JOURNAL OF MATERIALS CHEMISTRY C
(2019)
Article
Materials Science, Multidisciplinary
Wade A. Braunecker, Sarah Shulda, Madison B. Martinez, Katherine E. Hurst, Joshua T. Koubek, Sarah Zaccarine, Rachel E. Mow, Svitlana Pylypenko, Alan Sellinger, Thomas Gennett, Justin C. Johnson
ACS MATERIALS LETTERS
(2020)
Article
Chemistry, Multidisciplinary
Kecheng Long, Shaozhen Huang, Han Wang, Anbang Wang, Yuejiao Chen, Zhijian Liu, Yu Zhang, Zhibin Wu, Weikun Wang, Libao Chen
Summary: This study proposes a low-cost Li foil surface-reconstruction strategy using a mechanochemistry reaction between fumed silica and Li to achieve dendrite-free Li metal anode. The reconstructed surface enhances the electrode dynamics and constructs an anionphilic interface, leading to significantly improved low-temperature and cycling performance of Li metal batteries while maintaining high energy density and stable cycle performance.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Changchun Ye, Zhenghui Pan, Qinghua Zhang, Fang Yin, Yanan Wang, Yifei Li, Guangxu Chen, Jia Li, Yongcai Qiu, Geoffrey I. N. Waterhouse, Lin Gu, Zhang Lin, Lin Guo
Summary: A facile synthesis route for heterostructured metal oxides via quenching-induced structural transformation was developed. Multiple quenching triggered the transformation from NiMoO4 to NiFe2O4, creating a novel heterostructure, and the pre-quenching generated disordered defect structure can promote subsequent quenching regulation.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Yang Liu, Xufei An, Ke Yang, Jiabin Ma, Jinshuo Mi, Danfeng Zhang, Xing Cheng, Yuhang Li, Yuetao Ma, Ming Liu, Feiyu Kang, Yan-Bing He
Summary: The lack of understanding of ion transport in the cathode of PVDF-based solid-state lithium metal batteries limits their performance. The use of carbon-coated Li1.4Al0.4Ti1.6(PO4)3 nanowires as a cathode filler improves the diffusion of ions in the thick cathode, leading to enhanced battery performance and stability.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Zixing Wang, Kang Luo, Jian-Fang Wu, Peng Gao, Kexuan Wang, Shi Chen, Jian Tu, Xiulin Fan, Jilei Liu
Summary: This study improves the performance limitations of potassium-ion batteries at extreme temperatures by regulating the ion-solvent-coordinated structure, leading to enhanced cycling performance and capacity retention.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Shan Jiang, Ruyue Wang, Minghua Li, Runnan Yu, Fuzhi Wang, Zhan'ao Tan
Summary: This study developed a synergistic electrical and light management strategy to maximize the voltage output in monolithic perovskite/organic tandem solar cells. By optimizing the interface contact and regulating the donor/acceptor ratio, the fabricated cells achieved remarkable power conversion efficiency and high open-circuit voltage.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Gwanho Kim, Jae Won Lee, Kaiying Zhao, Taebin Kim, Woojoong Kim, Jin Woo Oh, Kyuho Lee, Jihye Jang, Guangtao Zan, Jong Woong Park, Seokyeong Lee, Yeonji Kim, Wei Jiang, Shengyou Li, Cheolmin Park
Summary: In this study, a new type of complementary energy harvester that can simultaneously generate moisture-induced and triboelectric power is introduced. This device exhibits high resilience, high energy output, and potential applications in emergency guidance systems.
ENERGY & ENVIRONMENTAL SCIENCE
(2024)