Article
Physics, Multidisciplinary
Zhuoran He, Aiyun Luo, Biao Lian, Gang Xu
Summary: The study combines density functional theory and the Schwinger boson method to simultaneously determine the topological electronic band structure and topological magnon spectrum in the ferromagnetic phase of CoCu3(OH)(6)Cl-2. It is found that the hopping parameters of the electronic and magnonic bands can mutually influence each other, predicting the possibility of magnetically driven topological phase transitions in the electronic bands. The study provides a useful method to deal with correlated topological magnetic systems with narrow band gaps self-consistently.
NEW JOURNAL OF PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
P. Dalmas de Reotier, A. Yaouanc
Summary: The polarization function P-Z(exp)(t) measured by the muon-spin relaxation (mu SR) technique for the SrCr8Ga4O19 and ZnCu3(OH)(6)Cl-2 spin-liquid systems reveals the temperature and energy dependent behavior of the magnetic correlations. Different spin-dynamics mechanisms are observed at different energy ranges.
Article
Chemistry, Inorganic & Nuclear
Bachchar Hadrane, Philippe Deniard, Nicolas Gautier, Michael Paris, Christophe Payen, Remi Dessapt
Summary: Pure micro- and nanocrystalline powders of layered-kagome zinc orthovanadate BaZn3(VO4)(2)(OH)(2) have been successfully prepared and characterized. The structures and distributions of the micro- and nanostructured samples have been determined through X-ray diffraction and transmission electron microscopy. The optical properties of the material are also influenced by the nanostructuring.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Multidisciplinary
Zhenyuan Zeng, Xiaoyan Ma, Si Wu, Hai-Feng Li, Zhen Tao, Xingye Lu, Xiao-hui Chen, Jin-Xiao Mi, Shi-Jie Song, Guang-Han Cao, Guangwei Che, Kuo Li, Gang Li, Huiqian Luo, Zi Yang Meng, Shiliang Li
Summary: This study investigates the magnetic properties of YCu3(OH)(6)Br-2[Br1-x(OH)(x)] and finds that its magnetic ground state is consistent with the proposed candidate ground state in the two-dimensional kagome Heisenberg antiferromagnetic system.
Article
Materials Science, Multidisciplinary
Dong Chen, Congcong Le, Chenguang Fu, Haicheng Lin, Walter Schnelle, Yan Sun, Claudia Felser
Summary: LiMn6Sn6 is a kagome ferromagnet with a large anomalous Hall effect, high ferromagnetism, and easy plane characteristics. Through experiments and calculations, it is found that there is a coexistence of electrons and holes in the material, and the main anomalous Hall effect is attributed to band crossings near the Fermi energy.
Article
Materials Science, Multidisciplinary
Xiaochen Hong, Mahdi Behnami, Long Yuan, Boqiang Li, Wolfram Brenig, Bernd Buechner, Yuesheng Li, Christian Hess
Summary: The newly discovered YCu3(OH)6.5Br2.5 is an ideal system for studying kagome quantum spin liquid, as it does not suffer from the orphan spin problem and exhibits gapped magnetic excitations consistent with a Z2 quantum spin liquid ground state.
Article
Materials Science, Multidisciplinary
P. Prelovsek, M. Gomilsek, T. Arh, A. Zorko
Summary: This study presents an in-depth analysis of temperature-dependent dynamical spin correlations in the antiferromagnetic Heisenberg spin-1/2 model on the kagome lattice with additional interactions. The research shows that introducing additional interactions leads to an anisotropic dynamical response and affects the in-plane spin fluctuations, ultimately leading to the onset of a coplanar AFM ground state order. The results are in good agreement with experimental data on kagome AFM compounds, demonstrating the importance of dynamical spin correlations in understanding quantum spin liquids.
Article
Multidisciplinary Sciences
G. Semeghini, H. Levine, A. Keesling, S. Ebadi, T. T. Wang, D. Bluvstein, R. Verresen, H. Pichler, M. Kalinowski, R. Samajdar, A. Omran, S. Sachdev, A. Vishwanath, M. Greiner, V. Vuletic, M. D. Lukin
Summary: Researchers utilized a programmable quantum simulator made up of 219 atoms to investigate quantum spin liquid states, creating frustrated quantum states without local order through array placement and evolution, and detecting the onset of a quantum spin liquid phase using topological string operators.
Article
Materials Science, Multidisciplinary
Rebecca W. Smaha, Jonathan Pelliciari, Ignace Jarrige, Valentina Bisogni, Aaron T. Breidenbach, Jack Mingde Jiang, Jiajia Wen, Hong -Chen Jiang, Young S. Lee
Summary: A quantum spin liquid is characterized by long-range entanglement between magnetic moments and exotic spin excitations involving fractionalized spinons. By using resonant inelastic X-ray scattering, the excitations in single crystals of the spin liquid candidate Zn-barlowite were investigated. The results indicate the presence of a broad continuum of magnetic scattering up to around 200 meV, suggesting significant contributions from multiple pairs of spinons and/or antispinons at high energies.
Article
Physics, Multidisciplinary
Jin-Qun Zhong, Zhen-Wei Yu, Xiao-Yu Yue, Yi-Yan Wang, Hui Liang, Yan Sun, Dan-Dan Wu, Zong-Ling Ding, Jin Sun, Xue-Feng Sun, Qiu-Ju Li
Summary: High-quality single crystals of LnCu(3)(OH)(6)Br-3 (Ln = Nd, Sm, and Eu) were grown by hydrothermal method to investigate the effects of lanthanide ions on geometrically frustrated antiferromagnets and their magnetic properties. Crystal structures and magnetic properties were studied, revealing a Kapellasite-type layer structure and strong antiferromagnetic coupling with pronounced magnetic frustration effect. Magnetization measurements showed canted antiferromagnetic ordering of Cu2+ ions within the kagome plane around 16 K and weak ferromagnetic coupling, while shoulder-like anomalies in specific heat indicated the emergence of magnetic ordering. The low-temperature negative magnetization and specific heat of LnCu(3)(OH)(6)Br-3 (Ln = Nd, Sm, and Eu) suggested more exotic magnetic ground state properties induced by Ln (3+) ions.
Article
Physics, Multidisciplinary
Ying Fu, Lianglong Huang, Xuefeng Zhou, Jian Chen, Xinyuan Zhang, Pengyun Chen, Shanmin Wang, Cai Liu, Dapeng Yu, Hai-Feng Li, Le Wang, Jia-Wei Mei
Summary: The spin-1/2 kagome antiferromagnets are key materials for studying frustrated magnetism, with LnCu(3)(OH)(6)Cl-3 successfully synthesized using the hydrothermal method. The heavy lanthanides in LnCu(3)(OH)(6)Cl-3 exhibit large effective magnetic moment and ferromagnetic-like spin correlations, while the Cu-kagome lattice maintains an antiferromagnetically ordered state at around 17 K like YCu3(OH)(6)Cl-3.
Article
Physics, Multidisciplinary
Hiroyuki K. Yoshida, Hirotaka Okabe, Soshi Takeshita, Hubertus Luetkens, Akihiro Koda, Ryosuke Kadono
Summary: The dynamical properties of the quantum kagome antiferromagnet CaCu3(OH)(6)Cl-2 center dot 0.6H(2)O have been elucidated through muon spin rotation and relaxation (mu SR) experiments. The results show the existence of persistent spin fluctuations and different relaxation behaviors at low temperatures, possibly related to a change in fluctuation mode.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2022)
Article
Astronomy & Astrophysics
Thiago Araujo, Domenico Orlando, Susanne Reffert
Summary: The study focused on quantum crystal melting in three dimensions. By reformulating the crystal melting Hamiltonian as an occupancy problem in a Kagome lattice, a fermion-boson duality for plane partitions was defined. Based on this, it was conjectured that the growth operators for the quantum Hamiltonian can be represented in terms of the affine Yangian Y[(gl) over cap (1))].
Article
Chemistry, Multidisciplinary
Zhiyan Chen, Xiangqian Lu, Jiawei Qiao, Jianqiang Liu, Wei Qin
Summary: The response of crystal structure to external stimuli provides potential applications in the areas of detection, diagnosis, and repair. In this study, two allotropic organic cocrystals with different space groups and lattice parameters, but identical donor and acceptor molecules, were fabricated. Under external stimuli, pronounced differences in lattice vibration and electron-phonon coupling were observed in these two crystals, along with different strengths of spin polarizations.
Article
Materials Science, Multidisciplinary
K. Y. Zeng, F. Y. Song, Z. M. Tian, Qiao Chen, Shun Wang, Bo Liu, Shiliang Li, L. S. Ling, W. Tong, Long Ma, Li Pi
Summary: A local probe investigation was conducted on the frustrated antiferromagnet Pr3BWO9 with a distorted kagome lattice, revealing the presence of an unconventional persistent fluctuating paramagnetic ground state and antiferromagnetic collective spin excitations.
Article
Multidisciplinary Sciences
Min Gyu Kim, Andi Barbour, Wen Hu, Stuart B. Wilkins, Ian K. Robinson, Mark P. M. Dean, Junjie Yang, Choongjae Won, Sang-Wook Cheong, Claudio Mazzoli, Valery Kiryukhin
Summary: Magnetic domains in antiferromagnetic materials are crucial for understanding magnetism and its applications. In this study, videos of fluctuating antiferromagnetic domains in Ni2MnTeO6 were obtained using coherent x-ray diffraction. The findings highlight the potential significance of dynamic domain imaging in phase transition studies and magnetic device research.
Article
Chemistry, Multidisciplinary
Andre K. Eckhardt, Martin-Louis Y. Riu, Mengshan Ye, Peter Muller, Giovanni Bistoni, Christopher C. Cummins
Summary: A novel phosphorus mononitride precursor is reported, which can release PN molecules in solution and serve as a PN transfer reagent for synthesis.
Article
Engineering, Electrical & Electronic
Dmitri Donetski, Kevin Kucharczyk, Jinghe Liu, Ricardo Lutchman, Steven Hulbert, Claudio Mazzoli, Christie Nelson, Boris Podobedov
Summary: GaAs photodiode arrays are designed for non-destructive monitoring in synchrotron light sources. By using a shallow p-on-n structure, the device photocurrent density is reduced and optimized for high-power hard x-ray beams. The experimental results are consistent with the modeling predictions, with the exception of higher x-ray energies.
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Martin Bluschke, Rourav Basak, Andi Barbour, Ashley N. Warner, Katrin Fursich, Stuart Wilkins, Sujoy Roy, James Lee, Georg Christiani, Gennady Logvenov, Matteo Minola, Bernhard Keimer, Claudio Mazzoli, Eva Benckiser, Alex Frano
Summary: In this work, we demonstrate the extension of Bragg coherent diffractive imaging using resonant magnetic x-ray scattering to study the mesoscopic texture of an antiferromagnetic order parameter. We successfully extracted the arrangements and sizes of antiferromagnetic domains in PrNiO3 and showed that the approach could be applied to study the motion of dilute domains or topological defects in antiferromagnetic spin textures.
Article
Physics, Multidisciplinary
Yanhong Gu, Yilin Wang, Jiaqi Lin, Jonathan Pelliciari, Jiemin Li, Myung-Geun Han, Marcus Schmidt, Gabriel Kotliar, Claudio Mazzoli, Mark P. M. Dean, Valentina Bisogni
Summary: The study investigates the electronic structure and magnetic excitations of copper ions at specific positions in the spin spiral magnet Cu2OSeO3, revealing the complex interactions in this material.
COMMUNICATIONS PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Quinton J. Bruch, Akira Tanushi, Peter Muller, Alexander T. Radosevich
Summary: This study demonstrates that hydride transfer catalysis can be enabled by a transition metal-bound low symmetry tricoordinate phosphorus ligand. The reactivity of the phosphorus ligand enables catalytic hydrodechlorination, making it a significant finding in the field of catalysis.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Christopher Klose, Felix Buettner, Wen Hu, Claudio Mazzoli, Kai Litzius, Riccardo Battistelli, Ivan Lemesh, Jason M. Bartell, Mantao Huang, Christian M. Guenther, Michael Schneider, Andi Barbour, Stuart B. Wilkins, Geoffrey S. D. Beach, Stefan Eisebitt, Bastian Pfau
Summary: Nanoscale magnetic fluctuations are observed beyond conventional resolution limits using coherent correlation imaging, allowing for the study of previously inaccessible magnetic phenomena. The method utilizes Fourier space analysis and an iterative hierarchical clustering algorithm to achieve high spatial and temporal resolution.
Article
Materials Science, Multidisciplinary
Nelson Hua, Jianheng Li, Stjepan B. Hrkac, Andi Barbour, Wen Hu, Claudio Mazzoli, Stuart Wilkins, Roopali Kukreja, Eric E. Fullerton, Oleg G. Shpyrko
Summary: We studied charge-orbital fluctuations in the insulating state of magnetite using resonant elastic x-ray scattering and x-ray photon correlation spectroscopy. Our results revealed the dynamics of the iron 3d and oxygen 2p orbital domains, showing a decoupling of the orbital correlation lengths between the oxygen ligands and site-specific iron 3d states. We also observed charge-orbital domain fluctuations at the iron t(2g) orbital sites of trimeron chains.
PHYSICAL REVIEW MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tomoaki Sakurada, Yeongsu Cho, Watcharaphol Paritmongkol, Woo Seok Lee, Ruomeng Wan, Annlin Su, Wenbi Shcherbakov-Wu, Peter Mueller, Heather J. Kulik, William A. Tisdale
Summary: This work reports a chemically robust yellow emissive one-dimensional (1D) semiconductor, silver 2,6-difluorophenylselenolate-AgSePhF2(2,6), which belongs to the class of hybrid low-dimensional semiconductors. Introduction of fluorine atoms at the (2,6) position of the phenyl ring induces a structural transition from 2D sheets to 1D chains. AgSePhF2(2,6) exhibits strongly dispersive conduction and valence bands along the 1D crystal axis. Visible photoluminescence with prompt and delayed components is observed at room temperature.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Correction
Multidisciplinary Sciences
Christopher Klose, Felix Buttner, Wen Hu, Claudio Mazzoli, Kai Litzius, Riccardo Battistelli, Sergey Zayko, Ivan Lemesh, Jason M. M. Bartell, Mantao Huang, Christian M. Guenther, Michael Schneider, Andi Barbour, Stuart B. B. Wilkins, Geoffrey S. D. Beach, Stefan Eisebitt, Bastian Pfau
Article
Multidisciplinary Sciences
E. Garlatti, A. Albino, S. Chicco, V. H. A. Nguyen, F. Santanni, L. Paolasini, C. Mazzoli, R. Caciuffo, F. Totti, P. Santini, R. Sessoli, A. Lunghi, S. Carretta
Summary: Understanding phonon-induced relaxation in molecular qubits is crucial for their application potential. Garlatti et al. utilize inelastic X-ray scattering and density functional theory to investigate the role of low-energy phonons on spin relaxation in a prototypical molecular qubit. They find that intra-molecular vibrations with very-low energies are largely responsible for spin relaxation up to ambient temperature. This research provides insights into improving spin coherence and opens new avenues for the investigation of magnetic molecules for quantum devices.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Taryn D. Palluccio, Meaghan E. Germain, Marco Marazzi, Manuel Temprado, Jared S. Silvia, Peter Mueller, Christopher C. Cummins, Jack V. Davis, Leonardo F. Serafim, Burjor Captain, Carl D. Hoff, Elena V. Rybak-Akimova
Summary: This study describes the synthesis and structures of nitrile complexes of V (N[(t) Bu] Ar) (3), 2 (Ar = 3,5-Me2C6H3). The thermochemical and kinetic data for their formation were determined using various techniques. The extent of back-bonding from metal to coordinated nitrile reveals a different role of electron donation compared to the related complex Mo (N[(t) Bu] Ar) (3), 1. Kinetic studies show similar rate constants for nitrile binding to 2, but the activation parameters depend on the nature of R in RCN. Density functional theory (DFT) calculations support the formation of a π-stacking interaction between a pendant arene of the metal anilide and the arene substituent on the incoming nitrile in favorable cases.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Gregory D. Thiabaud, Miriam Schwalm, Sajal Sen, Ali Barandov, Jacob Simon, Peter Harvey, Virginia Spanoudaki, Peter Muller, Jonathan L. Sessler, Alan Jasanoff
Summary: This study successfully synthesized a molecular probe that allows assessment of intracellular calcium levels through fluorescence, photoacoustic, and magnetic resonance imaging techniques, which can be detected in brain tissue.
Article
Materials Science, Multidisciplinary
William J. Mullin, Peter Mueller, Anthony J. Schaefer, Elisa Guzman, Steven E. Wheeler, Samuel W. Thomas
Summary: This study investigates the stacking interactions between aromatic rings and heterocycles, revealing that fluorinated side-chains and electron-rich units have interactions in the solid state, while electron-deficient units are incompatible. These interactions play a significant role in compound stability.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Christopher Klose, Felix Buettner, Wen Hu, Claudio Mazzoli, Geoffrey S. D. Beach, Stefan Eisebitt, Bastian Pfau
Summary: This paper proposes a method to reconstruct magnetic scattering signal using heterodyne scattering, which directly represents the magnetization texture. It solves some problems in traditional methods and eliminates the issue of artificial decay of correlation functions through the implementation method.
