Article
Multidisciplinary Sciences
Naman K. Gupta, Christopher McMahon, Ronny Sutarto, Tianyu Shi, Rantong Gong, Haofei I. Wei, Kyle M. Shen, Feizhou He, Qianli Ma, Mirela Dragomir, Bruce D. Gaulin, David G. Hawthorn
Summary: Recent studies have shown a correlation between electronic nematicity and the pseudogap phase in cuprate superconductors. By altering doping levels or temperature, significant changes in electronic nematicity can be observed in relation to the pseudogap phase.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Physics, Multidisciplinary
Alfred Zong, Pavel E. Dolgirev, Anshul Kogar, Yifan Su, Xiaozhe Shen, Joshua A. W. Straquadine, Xirui Wang, Duan Luo, Michael E. Kozina, Alexander H. Reid, Renkai Li, Jie Yang, Stephen P. Weathersby, Suji Park, Edbert J. Sie, Pablo Jarillo-Herrero, Ian R. Fisher, Xijie Wang, Eugene Demler, Nuh Gedik
Summary: Engineering novel states of matter with light is a cutting-edge area of materials research, with a focus on realizing broken-symmetry phases through ultrashort laser pulses. Experimental findings suggest that light-induced CDW consists solely of order parameter fluctuations, similar to critical fluctuations in equilibrium. These results indicate that materials with strong equilibrium fluctuations may host hidden orders after laser excitation.
PHYSICAL REVIEW LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Xiaoming Wang, Yu-Xuan Li, Tao Zhou
Summary: We investigate the possibility of introducing a Chern insulator in proximity to a d-wave pseudogap state of the high-Tc superconducting material as a platform for realizing a higher-order topological system. The presence of a proximity-induced d-density-wave (DDW) order leads to fully gapped edge states. In the real space, the DDW order parameter changes sign at the corners, resulting in gapless corner states, suggesting the presence of a higher-order topological state. The higher-order topology in this coupled system is confirmed through calculations of edge polarization and quadrupole moment. In the superconducting state where the superconducting order and DDW order coexist, Majorana corner states emerge.
Article
Multidisciplinary Sciences
Qisi Wang, K. von Arx, D. G. Mazzone, S. Mustafi, M. Horio, J. Kuspert, J. Choi, D. Bucher, H. Wo, J. Zhao, W. Zhang, T. C. Asmara, Y. Sassa, M. Mansson, N. B. Christensen, M. Janoschek, T. Kurosawa, N. Momono, M. Oda, M. H. Fischer, T. Schmitt, J. Chang
Summary: A study finds that mild uniaxial pressure can change the ordering pattern of stripes and pin them to the crystal axis. This change may have an impact on superconductivity and could be a key prerequisite for the coexistence of stripes and superconductivity.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Zhangkai Cao, Xingyu Ma, Yiqun Liu, Huaiming Guo, Shiping Feng
Summary: The characteristic energy of the nematic-order state in cuprate superconductors is found to be particularly large in the underdoped regime, decreasing smoothly with increasing doping, consistent with experimental observations. Furthermore, the characteristic energy shows a similar behavior to the superconducting transition temperature as a function of nematic-state strength, suggesting a possible connection between the two.
Article
Physics, Multidisciplinary
Finn Lasse Buessen, Sopheak Sorn, Ivar Martin, Arun Paramekanti
Summary: The interplay between nematicity and superconductivity in quantum materials was investigated by simulating a 2D array of nematogens coupled to Josephson junction wires, revealing that superconductivity can promote nematic ordering. The study discussed the implications of these findings in 2D electron gases and doped topological insulators.
Article
Materials Science, Multidisciplinary
Linus Kautzsch, Brenden R. Ortiz, Krishnanand Mallayya, Jayden Plumb, Ganesh Pokharel, Jacob P. C. Ruff, Zahirul Islam, Eun-Ah Kim, Ram Seshadri, Stephen D. Wilson
Summary: The structural ground states and temperature-dependent evolution of the kagome superconductors KV3Sb5, RbV3Sb5, and CsV3Sb5 have been investigated. KV3Sb5 and RbV3Sb5 exhibit 2 x 2 x 2 superstructures with staggered trihexagonal deformation of vanadium layers in the Fmmm space group. CsV3Sb5 displays more complex structural evolution, with a staged progression of ordering into a 2 x 2 x 4 supercell exhibiting trihexagonal and Star of David patterns of deformations. Diffraction under pulsed magnetic fields suggests that the CDW state of CsV3Sb5 is insensitive to external magnetic fields.
PHYSICAL REVIEW MATERIALS
(2023)
Article
Physics, Multidisciplinary
Li Wang, Fan Xiao, Pan Song, Wenkai Tao, Xu Sun, Jiacan Wang, Zhigang Zheng, Jing Zhao, Xiaowei Wang, Zengxiu Zhao
Summary: This study utilizes high-order harmonics to experimentally measure and explore the precision measurement of attosecond dynamics in strong-field physics. By converting the Gaussian beam to the transverse electromagnetic mode, the interferometry of high-order harmonics is achieved. The experimental results are in good agreement with classical electron excursion simulations.
CHINESE PHYSICS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
David Attia, Orit Mendelson, Yael Levi-Kalisman, Ronit Bitton, Rachel Yerushalmi-Rozen
Summary: The chiral environment of d-alanine solutions disrupts and modifies the assembly of cellulose nanocrystals into a chiral nematic mesophase, and this effect is specific to d-alanine and not caused by the adsorption of alanine molecules onto the CNC particles.
Article
Biochemistry & Molecular Biology
Emily E. Pocock, Richard J. Mandle, John W. Goodby
Summary: Liquid crystalline dimers and dimesogens have been studied for their twist-bend modulated nematic (N-TB) phases. By selecting mesogenic units with differing polarities and aspect ratios and a bent central spacer, a material has been obtained that exhibits both N-TB and intercalated smectic phases. The higher temperature smectic phase (SmCA) and the lower temperature smectic ''X'' phase with in-plane orthorhombic or monoclinic packing and anticlinic layer organisation have been analyzed.
Article
Chemistry, Physical
Igor V. V. Plokhikh, Alexander A. A. Tsirlin, Dmitry D. D. Khalyavin, Henry E. E. Fischer, Andrei V. V. Shevelkov, Arno Pfitzner
Summary: In this study, the magnetic ordering of Eu2+ in the [EuF](+) fluorite layers was investigated in EuTAsF compounds with different [TAs](-) antifluorite layers. It was found that EuTAsF compounds exhibit different non-collinear magnetic structures depending on the nature of the antifluorite layer, with stripe order in EuTAsF (T = Zn and Mn) and incommensurate order in EuFeAsF. Furthermore, DFT calculations showed that EuFeAsF has stripe antiferromagnetic order in the Fe-sublattice. The frustrating interplane interaction between adjacent [EuF](+) layers was found to be dominant in the metallic [FeAs](-) layers, which, along with a slight orthorhombic distortion, is proposed to be the origin of the observed incommensurate magnetic structure in EuFeAsF.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
A. M. Vibhakar, D. D. Khalyavin, J. M. Moya, P. Manuel, F. Orlandi, S. Lei, E. Morosan, A. Bombardi
Summary: This study presents a high-resolution resonant x-ray and neutron scattering study on EuGa2Al2, revealing the complex coupling between electronic ordering phenomena. The results show that the system forms a spin density wave with perpendicular magnetic moments below 19.5 K, and a cycloid with moments in the ab plane below 15 K, contrary to previous reports. The study also demonstrates the suppression of charge density wave order and the breaking of fourfold symmetry in the crystal structure.
Article
Chemistry, Multidisciplinary
Xiaodan Hong, Zhenyu Xu, Zhong-Peng Lv, Zhen Lin, Mohsen Ahmadi, Linfan Cui, Ville Liljestrom, Volodymyr Dudko, Jiali Sheng, Xiaoqi Cui, Alexey P. Tsapenko, Josef Breu, Zhipei Sun, Qiang Zhang, Esko Kauppinen, Bo Peng, Olli Ikkala
Summary: 2D transition metal carbides and nitrides (MXenes) show a wide range of important functionalities among 2D materials. However, MXene is prone to oxidation and colloidal instability during conventional water-based processing, limiting its applicability. Experiments and theory suggest that using high permittivity solvents such as N-methylformamide (NMF) and formamide (FA) is critical for stability and dispersibility. These solvents also enable high MXene stacking order within thin films on carbon nanotube substrates, resulting in high Terahertz (THz) shielding effectiveness. Understanding the mechanisms of stability and structural order can guide the application of MXene and other 2D materials in various fields, particularly in telecommunications.
Article
Materials Science, Multidisciplinary
Sourav Sen Choudhury, Anton B. Vorontsov
Summary: The study investigates thermal transport in a two-dimensional system with coexisting s- or d-wave superconducting and spin density wave orders, analyzing the nature of coexistence phase and the low temperature behavior of thermal conductivity. Different pairing states emerging from collinear spin density wave order show distinct heat transport signatures, depending on symmetry properties of the superconducting order parameter. The presence of stable Dirac nodal points in the coexistence phase results in finite residual heat conductivity.
Article
Multidisciplinary Sciences
Yiping Wang, Ioannis Petrides, Grant McNamara, Md Mofazzel Hosen, Shiming Lei, Yueh-Chun Wu, James L. Hart, Hongyan Lv, Jun Yan, Di Xiao, Judy J. Cha, Prineha Narang, Leslie M. Schoop, Kenneth S. Burch
Summary: The observation of the Higgs boson confirms the standard model of particle physics and further research on anomalies relies on the axial Higgs mode. This study discovers the axial Higgs mode in the charge density wave system RTe3 using quantum interference techniques, providing insights into the quantum properties of collective modes.
Article
Chemistry, Multidisciplinary
Sugeun Jo, Jeongwoo Han, Sungjae Seo, Oh-Sung Kwon, Subin Choi, Jin Zhang, Hyejeong Hyun, Juhyun Oh, Juwon Kim, Jinkyu Chung, Hwiho Kim, Jian Wang, Junho Bae, Junyeob Moon, Yoon-Cheol Park, Moon-Hi Hong, Miyoung Kim, Yijin Liu, Il Sohn, Keeyoung Jung, Jongwoo Lim
Summary: During solid-state calcination, complex phase transitions with heterogeneous solid-state reactions and mass transport occur as the temperature increases. Precise control of the calcination chemistry is crucial for synthesizing advanced Ni-rich layered oxides (NRNCM) as cathode materials for lithium-ion batteries. This study reveals the control mechanism of the local chemical compositions and structures in the reaction intermediates within a calcined particle through synchrotron-based X-ray, mass spectrometry microscopy, and structural analyses, providing valuable information for tuning the calcination chemistry and developing high-energy/power density lithium-ion batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Aritz Landart-Gereka, Maria Mar Quesada-Moreno, Maria A. Palacios, Ismael F. Diaz-Ortega, Hiroyuki Nojiri, Mykhaylo Ozerov, J. Krzystek, Enrique Colacio
Summary: Replaced pyridine with 1-methyl-imidazol in the arms of a N-6-tripodal ligand to prepare two new Co-II complexes with quasi-ideal triangular prismatic geometry, which act as SIMs with enhanced axial magnetic anisotropy, magnetic relaxation times, and magnetic hysteresis at zero dc field.
CHEMICAL COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
J. -J. Wen, W. He, H. Jang, H. Nojiri, S. Matsuzawa, S. Song, M. Chollet, D. Zhu, Y. -J. Liu, M. Fujita, J. M. Jiang, C. R. Rotundu, C. -C. Kao, H. -C. Jiang, J. -S. Lee, Y. S. Lee
Summary: Using x-ray scattering, researchers have found that the amplitude of charge-density waves (CDW) in the prototypical cuprate La1.885Sr0.115CuO4 suddenly increases upon entering the superconducting vortex-liquid state at high magnetic fields. This indicates a strong coupling between CDW and superconductivity, and suggests that the enhanced CDW amplitude is linked to local superconducting pairing.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Hongyi Pan, Sichen Jiao, Zhichen Xue, Jin Zhang, Xilin Xu, Luyu Gan, Quan Li, Yijin Liu, Xiqian Yu, Hong Li, Liquan Chen, Xuejie Huang
Summary: The pursuit of high-energy-density lithium-ion batteries has led to extensive research on the high-capacity lithium-rich manganese-rich oxide cathode (LRMO). This study investigates the thermal stability of LRMO through in situ X-ray diffraction and full-field transmission X-ray microscopy combined with X-ray absorption near edge structure. The roles of Ni and Mn in affecting the thermal stability of LRMO are uncovered, with Ni acting as a key factor that governs the onset temperature of thermal decomposition. Moreover, incomplete coverage of solid polymer electrolytes over the LRMO particle surface may lead to the deterioration of thermal stability.
ADVANCED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Nicolo D'Anna, Dario Ferreira Sanchez, Guy Matmon, Jamie Bragg, Procopios C. Constantinou, Taylor J. Z. Stock, Sarah Fearn, Steven R. Schofield, Neil J. Curson, Marek Bartkowiak, Y. Soh, Daniel Grolimund, Simon Gerber, Gabriel Aeppli
Summary: The progress of miniaturization in integrated electronics has led to atomic and nanometer-sized dopant devices in silicon. However, the ability to obtain atomic-species-specific images of the final structure remains a challenge, which is necessary for building more complex nano-scale devices. This study demonstrates the use of X-ray fluorescence to create an element-specific image of As dopants in Si without affecting the device's low temperature electronic properties.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Physics, Condensed Matter
Guannan Qian, Xiaobiao Huang, Jun-Sik Lee, Piero Pianetta, Yijin Liu
Summary: The rapid development and broad deployment of rechargeable batteries have transformed modern society significantly. Redox reactions in battery cathode materials are important but their ultrafast dynamics have been largely unexplored. In this article, the potential significance of understanding redox dynamics in battery cathodes in the ultrafast time regime is discussed, along with a proposed experimental design using a plasma-acceleration-based X-ray free-electron laser facility.
Article
Physics, Applied
Vladimir Calvera, Steven A. A. Kivelson, Erez Berg
Summary: We study the multi-valley electron gases in the low-density limit (r(s) >> 1). The ground state is found to be a Wigner crystal (WC) with additional pseudo-spin order related to valley occupancies. Depending on the symmetries of the host semiconductor and the parameters such as anisotropy of effective mass tensors, various pseudo-spin ordered states are observed, including striped or chiral pseudo-spin antiferromagnets and time-reversal symmetry breaking orbital loop-current ordered pseudo-spin ferromagnets. Our findings have implications for WC states in AlAs and mono and bilayer transition metal dichalcogenides, and propose the possibility of electronic liquid crystalline phases through continuous quantum melting of these WCs.
LOW TEMPERATURE PHYSICS
(2023)
Article
Instruments & Instrumentation
Jianwei Huang, Ziqin Yue, Andrey Baydin, Hanyu Zhu, Hiroyuki Nojiri, Junichiro Kono, Yu He, Ming Yi
Summary: This paper introduces an easily implementable method for realizing an in situ tunable magnetic field at the sample position in an ARPES experiment and analyzes the magnetic-field-induced artifacts in the ARPES data. The authors identified and quantified three distinct extrinsic effects of a magnetic field and demonstrated the feasibility of ARPES measurements in the presence of a controllable magnetic field in three prototypical quantum materials.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Materials Science, Multidisciplinary
Andrew C. Yuan, Erez Berg, Steven A. Kivelson
Summary: A conjectured accidental degeneracy between two patterns of pairing in Sr2RuO4 is proposed to explain the seemingly contradictory experimental findings. A generic multiband model is used to describe the g-wave pairing and it is found that even if time-reversal symmetry is broken, the superconductor remains gapless with a Bogoliubov Fermi surface approximating a vertical line node. The model provides a strain-dependent splitting between Tc and TTRSB, which is consistent with some experimental observations in Sr2RuO4.
Article
Physics, Multidisciplinary
S. E. Nikitin, Tao Xie, A. Gazizulina, B. Ouladdiaf, J. A. Rodriguez Velamazan, I. F. Diaz-Ortega, H. Nojiri, L. M. Anovitz, A. M. dos Santos, O. Prokhnenko, A. Podlesnyak
Summary: We directly observed a commensurate-ordered antiferromagnetic (AFM) state and incommensurate helical spin dynamics in the natural mineral brochantite Cu4SO4(OH)6 through neutron diffraction and neutron spectroscopy measurements. Our findings reveal the strong one-dimensional character of the magnetic correlations and the effect of the uniform Dzyaloshinskii-Moriya (DM) interaction. The symmetric exchange parameters and the DM vector components in Cu4SO4(OH)6 were quantified, and the mechanism of the magnetic frustration was determined.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Physics, Multidisciplinary
Andrey Baydin, Kenji Hayashida, Takuma Makihara, Fuyang Tay, Xiaoxuan Ma, Wei Ren, Guohong Ma, G. Timothy Noe, Ikufumi Katayama, Jun Takeda, Hiroyuki Nojiri, Shixun Cao, Motoaki Bamba, Junichiro Kono
Summary: Depending on the relative rates of coupling and dissipation, a light-matter coupled system is either in the weak or strong-coupling regime. In this study, a unique system is presented where the coupling rate continuously increases with an externally applied magnetic field while the dissipation rate remains constant, enabling the monitoring of a weak-to-strong coupling transition. A terahertz magnon mode in yttrium orthoferrite is observed to undergo Rabi splitting above a threshold magnetic field, indicating the transition into magnon polaritons through an exceptional point with increasing magnetic field. This finding opens up new opportunities for in situ control of non-Hermitian systems.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Instruments & Instrumentation
Masao Watanabe, Takumi Kihara, Hiroyuki Nojiri
Summary: A pulsed magnet system has been developed at the Materials and Life Science Experimental Facility in Japan Proton Accelerator Research Complex, which provides a user-friendly sample environment. The system includes a vacuum chamber, a 4 K closed-cycle refrigerator, and a nitrogen bath with a miniature solenoidal coil. The coil is cooled by liquid nitrogen supplied by an automatic system, while the sample is cooled by a refrigerator. This system enables automatic high magnetic field diffraction measurement, with a wide scattering angle up to 42 degrees. Neutron diffraction experiments on a multiferroic material were successfully performed.
QUANTUM BEAM SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Sijia Zhao, Zhaoyu Han, Steven A. Kivelson, Ilya Esterlis
Summary: We investigate the global ground-state phase diagram of a one-dimensional spinful Holstein model at half filling, taking into account the strength of the electron-phonon coupling (represented by the phonon-induced attraction strength, U) and the phonon frequency co0. Our analysis includes density-matrix renormalization group simulations, which correct previous conclusions on the antiadiabatic and strong-coupling regimes. The phase diagram exhibits two distinct phases, a fully gapped charge-density-wave phase and a spin-gapped Luther-Emery phase, separated by a phase boundary that reflects different microscopic physics in the weak and strong coupling limits.
Article
Materials Science, Multidisciplinary
Yuval Gannot, Steven A. Kivelson
Summary: In this article, we investigate the properties of T=0 quantum phases, such as superconducting and analogous spin-liquid phases, on infinite cylinders of width L1. We analyze the approaches to the two-dimensional (2D) limit. This problem is not only interesting itself but also crucial for extrapolating density matrix renormalization group (DMRG) results to the desired 2D limit in strongly interacting systems. Various methods for drawing firm conclusions about the quantum phases in 2D from relatively small L1 results are demonstrated.
Article
Materials Science, Multidisciplinary
Steven A. Kivelson, Akshat Pandey, Anisha G. Singh, Aharon Kapitulnik, Ian R. Fisher
Summary: In this paper, we study the critical behavior of incommensurate unidirectional charge-density-wave ordering in a weakly orthorhombic system subject to uniaxial strain, which serves as an experimentally significant example of U (1) x U (1) multicriticality. Depending on microscopic details, the phase diagram can exhibit qualitatively different structures, such as vestigial metanematic critical point, a pair of tricritical points, decoupled tetracritical point, or (at least at mean-field level) bicritical point. We analyze the emergent symmetries in the critical regime and find that in some cases, an emergent Z2 order parameter symmetry can be present.