Mingyu Xu
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View article: Single-Electron Bond in Ir–Ir Dimer Stabilized under Pressure
Single-Electron Bond in Ir–Ir Dimer Stabilized under Pressure Open
Odd-electron bonds, often considered ephemerally stable in chemical systems, can give rise to exotic physical phenomena in quantum materials. In this study, we present the design and discovery of a new iridate, Ba3NbIr2
View article: Tetragonal BaCoO <sub> <b>3</b> </sub> : A Co <sup> <b>4+</b> </sup> Ferromagnetic Mott Insulator
Tetragonal BaCoO <sub> <b>3</b> </sub> : A Co <sup> <b>4+</b> </sup> Ferromagnetic Mott Insulator Open
We report the stabilization of the metastable body-centered tetragonal (BCT) phase of BaCoO3 (BCT-BaCoO3) under high-pressure (15 GPa) and high-temperature (1200 °C) conditions using a mixture precursor. This double p…
View article: Superconductivity suppression and bilayer decoupling in Pr substituted YBa$_2$Cu$_3$O$_{7-δ}$
Superconductivity suppression and bilayer decoupling in Pr substituted YBa$_2$Cu$_3$O$_{7-δ}$ Open
The mechanism behind superconductivity suppression induced by Pr substitutions in YBa$_2$Cu$_3$O$_{7-δ}$ (YBCO) has been a mystery since its discovery: in spite of being isovalent to Y$^{3+}$ with a small magnetic moment, it is the only ra…
View article: A General and Modular Approach to Solid-State Integration of Zero-Dimensional Quantum Systems
A General and Modular Approach to Solid-State Integration of Zero-Dimensional Quantum Systems Open
Here, we present an all-electrical readout mechanism for quasi-0D quantum states (0D-QS), such as point defects, adatoms, and molecules, that is modular and general, providing an approach that is amenable to scaling and integration with ot…
View article: Tuning the electronic properties of MgB<sub>2</sub> by substitution with Mn and C
Tuning the electronic properties of MgB<sub>2</sub> by substitution with Mn and C Open
We use high-resolution angle-resolved photoemission spectroscopy (ARPES) to investigate the electronic band structure of the superconductors Mg 0.995 Mn 0.005 B 2 and Mg(B 0.98 C 0.02 ) 2 , in comparison with pristine MgB 2 . Our experimen…
View article: Mesoscopic Helices of Polar Domains in a Quadruple Perovskite
Mesoscopic Helices of Polar Domains in a Quadruple Perovskite Open
A significant effort in condensed matter physics is dedicated to the search for exotic arrangements of electric dipoles in crystals. Non-collinear dipolar arrangements mimicking magnetic spin textures, such as polar vortices and skyrmions,…
View article: Research on Harmonic Suppression Method of Terminal Grid Based on Virtual Impedance
Research on Harmonic Suppression Method of Terminal Grid Based on Virtual Impedance Open
Active filters are widely employed as effective tools for suppressing harmonic components caused by non‐linear loads in terminal grid power systems. However, the efficacy of these filters is limited, resulting in increased operational expe…
View article: Continuous Evolution of Eu<sup>2+</sup>/Eu<sup>3+</sup> Mixed Valency Driven by Pressure and Temperature
Continuous Evolution of Eu<sup>2+</sup>/Eu<sup>3+</sup> Mixed Valency Driven by Pressure and Temperature Open
Continuous mixed valency involving Eu2+ and Eu3+ in Eu4Bi6Se13 can be induced under applied pressure or at reduced temperatures. The monoclinic structure of Eu4Bi6
View article: Spin–Flop and Metamagnetic Transition in Monoclinic Eu<sub>4</sub>Bi<sub>6</sub>Se<sub>13</sub>
Spin–Flop and Metamagnetic Transition in Monoclinic Eu<sub>4</sub>Bi<sub>6</sub>Se<sub>13</sub> Open
This study explores an investigation of the crystallographic, electronic, and magnetic properties of the europium-based bismuth selenide compound Eu4Bi6Se13, with particular focus on its magnetic anisotropy…
View article: Steel slag derived oxygen carriers and solid sorbents for chemical looping CO2 capture: A mini review
Steel slag derived oxygen carriers and solid sorbents for chemical looping CO2 capture: A mini review Open
Steel slag is a solid waste in iron and steel industry, which shows a harmful effect on the environment as its high valuable reutilization ratio is quite low. Since it possesses high calcium and iron concentrations, it can be potentially u…
View article: Baichuan-M1: Pushing the Medical Capability of Large Language Models
Baichuan-M1: Pushing the Medical Capability of Large Language Models Open
The current generation of large language models (LLMs) is typically designed for broad, general-purpose applications, while domain-specific LLMs, especially in vertical fields like medicine, remain relatively scarce. In particular, the dev…
View article: Polymorphism of Pb<sub>5</sub>(PO<sub>4</sub>)<sub>3</sub>OH<sub>δ</sub> within the LK-99 mixture
Polymorphism of Pb<sub>5</sub>(PO<sub>4</sub>)<sub>3</sub>OH<sub>δ</sub> within the LK-99 mixture Open
During the synthetic exploration targeting the polycrystalline compound LK-99, an unexpected phase, Pb 5 (PO 4 ) 3 OH δ , was identified as a byproduct. We elucidated the composition of this compound through single-crystal X-ray diffractio…
View article: Pressure-Induced Phase Transitions in Bilayer La3Ni2O7
Pressure-Induced Phase Transitions in Bilayer La3Ni2O7 Open
La3Ni2O7 exists in two polymorphs: an unconventional structure with alternating layers of single- and triple-layered nickel-oxygen octahedra, and a classical double-layered Ruddlesden-Popper phase. In this …
View article: Giant Uniaxial Magnetocrystalline Anisotropy in SmCrGe<sub>3</sub>
Giant Uniaxial Magnetocrystalline Anisotropy in SmCrGe<sub>3</sub> Open
Magnetic anisotropy is a crucial characteristic for enhancing the spintronic device performance. The synthesis of SmCrGe3 single crystals through a high-temperature solution method has led to the determination of uniaxial magnet…
View article: Pressure-Induced Phase Transitions in Bilayer La$_3$Ni$_2$O$_7$
Pressure-Induced Phase Transitions in Bilayer La$_3$Ni$_2$O$_7$ Open
La$_3$Ni$_2$O$_7$ exists in two polymorphs: an unconventional structure with alternating layers of single- and triple-layered nickel-oxygen octahedra, and a classical double-layered Ruddlesden-Popper phase. In this study, we report the gro…
View article: Tetragonal BaCoO$_3$: A Co$^{4+}$ Ferromagnetic Mott Insulator with Inverted Spin Crossover
Tetragonal BaCoO$_3$: A Co$^{4+}$ Ferromagnetic Mott Insulator with Inverted Spin Crossover Open
The interplay between crystal electric field splitting of d states and Hund's rule exchange energy in cobalt-based perovskites offers a promising avenue for inducing spin-state transitions. This study reports a new body-centered tetragonal…
View article: Understanding vortex dynamics in CaK(Fe,Ni)<sub>4</sub>As<sub>4</sub> and Ba(Fe,Co)<sub>2</sub>As<sub>2</sub> single crystals under the influence of random point disorder
Understanding vortex dynamics in CaK(Fe,Ni)<sub>4</sub>As<sub>4</sub> and Ba(Fe,Co)<sub>2</sub>As<sub>2</sub> single crystals under the influence of random point disorder Open
We report on the influence of doping on vortex dynamics in 3 MeV proton-irradiated single crystals of CaK(Fe 1− x Ni x ) 4 As 4 (1144, x = 0.015, 0.025, and 0.03) and Ba(Fe 1− x Co x ) 2 As 2 ( x = 0.04, 0.062, 0.066 and 0.074). Non-irradi…
View article: Competition between the modification of intrinsic superconducting properties and the pinning landscape under external pressure in CaKFe$_4$As$_4$ single crystals
Competition between the modification of intrinsic superconducting properties and the pinning landscape under external pressure in CaKFe$_4$As$_4$ single crystals Open
Measurements of low field magnetization, trapped flux magnetization and 5 K flux creep in single crystal of CaKFe$_4$As$_4$ under pressure up to 7.5 GPa in a diamond pressure cell are presented. The observed evolution of the temperature de…
View article: Giant Uniaxial Magnetocrystalline Anisotropy in SmCrGe$_3$
Giant Uniaxial Magnetocrystalline Anisotropy in SmCrGe$_3$ Open
Magnetic anisotropy is a crucial characteristic for enhancing spintronic device performance. The synthesis of SmCrGe$_3$ single crystals through a high-temperature solution method has led to the determination of uniaxial magnetocrystalline…
View article: A general and modular approach to solid-state integration and readout of zero-dimensional quantum systems
A general and modular approach to solid-state integration and readout of zero-dimensional quantum systems Open
Here, we present an all-electrical readout mechanism for quasi-0D quantum states (0D-QS) such as point defects, adatoms and molecules, that is modular and general, providing an approach that is amenable to scaling and integration with othe…
View article: Tuning superconductivity and spin-vortex instabilities in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>CaKFe</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mi>As</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math> through in-plane antisymmetric strains
Tuning superconductivity and spin-vortex instabilities in through in-plane antisymmetric strains Open
Lattice strains of appropriate symmetry have served as an excellent tool to explore the interaction of superconductivity in the iron-based superconductors with orthorhombic-nematic and stripe spin-density-wave (SSDW) order. In this Letter,…
View article: Anti-resonant acoustic waveguides enabled tailorable Brillouin scattering on chip
Anti-resonant acoustic waveguides enabled tailorable Brillouin scattering on chip Open
Empowering independent control of optical and acoustic modes and enhancing the photon-phonon interaction, integrated photonics boosts the advancements of on-chip stimulated Brillouin scattering (SBS). However, achieving acoustic waveguides…
View article: Pressure‐Dependent “Insulator–Metal–Insulator” Behavior in Sr‐Doped La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub>
Pressure‐Dependent “Insulator–Metal–Insulator” Behavior in Sr‐Doped La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub> Open
Recently, superconductivity at high temperatures is observed in bulk La 3 Ni 2 O 7−δ under high pressure. However, the attainment of high‐purity La 3 Ni 2 O 7−δ single crystals remains a formidable challenge. Here, the crystal structure an…
View article: Trapped flux in a small crystal of CaKFe<sub>4</sub>As<sub>4</sub> at ambient pressure and in a diamond anvil pressure cell
Trapped flux in a small crystal of CaKFe<sub>4</sub>As<sub>4</sub> at ambient pressure and in a diamond anvil pressure cell Open
In an extension of our previous work, (Bud’ko et al 2023 Supercond. Sci. Technol. 36 115001) the measurements of temperature dependent magnetization associated with trapped magnetic flux in a small single crystal of CaKFe 4 As 4 , using ze…
View article: Erratum: Unusual coercivity and zero-field stabilization of fully saturated magnetization in single crystals of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>LaCrGe</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math> [Phys. Rev. B <b>107</b>, 134437 (2023)]
Erratum: Unusual coercivity and zero-field stabilization of fully saturated magnetization in single crystals of [Phys. Rev. B <b>107</b>, 134437 (2023)] Open
Received 15 March 2024DOI:https://doi.org/10.1103/PhysRevB.109.139901©2024 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasDomain wallsFerromagnetismMagnetic anisotropyMagnetic domainsMagnetic orderPhysical SystemsFe…
View article: On creep of trapped flux near <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg" display="inline" id="d1e315"><mml:msub><mml:mrow><mml:mi>T</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi></mml:mrow></mml:msub></mml:math> in MgB2 and CaKFe4As4
On creep of trapped flux near in MgB2 and CaKFe4As4 Open
View article: Loading-effect-based 3-D microfabrication empowers on-chip Brillouin optomechanics
Loading-effect-based 3-D microfabrication empowers on-chip Brillouin optomechanics Open
The acousto-optic interaction known as stimulated Brillouin scattering (SBS) has emerged as fundamental principles for realizing crucial components and functionalities in integrated photonics. However, the main challenge of integrated Bril…
View article: Anti-resonant acoustic waveguides enabled tailorable Brillouin scattering on chip
Anti-resonant acoustic waveguides enabled tailorable Brillouin scattering on chip Open
Empowering independent control of optical and acoustic modes and enhancing the photon-phonon interaction, integrated photonics boosts the advancements of on-chip stimulated Brillouin scattering (SBS). However, achieving acoustic waveguides…
View article: Pressure-dependent "Insulator-Metal-Insulator" Behavior in Sr-doped La$_3$Ni$_2$O$_7$
Pressure-dependent "Insulator-Metal-Insulator" Behavior in Sr-doped La$_3$Ni$_2$O$_7$ Open
Recently, superconductivity at high temperatures has been observed in bulk La$_3$Ni$_2$O$_{7-δ}$ under high pressure. However, the attainment of high-purity La$_3$Ni$_2$O$_{7-δ}$ single crystals, exhibiting controlled and homogeneous stoic…
View article: Trapped flux in pure and Mn-substituted CaKFe<sub>4</sub>As<sub>4</sub>and MgB<sub>2</sub>superconducting single crystals
Trapped flux in pure and Mn-substituted CaKFe<sub>4</sub>As<sub>4</sub>and MgB<sub>2</sub>superconducting single crystals Open
Measurements of temperature dependent magnetization associated with trapped magnetic flux in single crystals of CaKFe 4 As 4 , CaK(Fe 0.983 Mn 0.017 ) 4 As 4 and MgB 2 using zero-field-cooled and field-cooled protocols are presented. The r…