Explanipedia

Anisotropic piezomagnetism in noncollinear antiferromagnets Open

H. Vu, Yuki Yanagi, Michi‐To Suzuki · 2025

In 3d-electron magnetic systems, the magnetic structures that transform each other by spin rotation have very close degenerate energies due to small spin-orbit coupling and can be easily controlled by chemical substitution and external mag…

Investigation of Hole Dopability in Oxygen $2p$-Dominated Bands Open

H. Vu, Yu Kumagai · 2025

The development of $p$-type oxide semiconductors remains impeded by the inherently low-lying valence-band maximum (VBM) dominated by O-2$p$ states. A prevailing approach to mitigate this limitation is to elevate the VBM by introducing cati…

Enhanced Field‐Like Torque Generated from the Anisotropic Spin‐Split Effect in Triple‐Domain RuO<sub>2</sub> for Energy‐Efficient Spin–Orbit Torque Magnetic Random‐Access Memory Open

T. V. A. Nguyen, Hiroshi Naganuma, H. Vu, Samik DuttaGupta, Y. Saito , et al. · 2025

Spin‐current generation via the anisotropic spin‐split effect has been predicted in antiferromagnetic RuO 2 , where the symmetry of RuO 2 plays a critical role in spin–orbit torque (SOT). This phenomenon has garnered attention for its pote…

GIÁ TRỊ CỦA THANG ĐIỂM NEWS2 TRONG TIÊN LƯỢNG THÔNG KHÍ KHÔNG XÂM LẤN, THỞ MÁY XÂM LẤN VÀ TỬ VONG NỘI VIỆN Ở BỆNH NHÂN ĐỢT CẤP BỆNH PHỔI TẮC NGHẼN MẠN TÍNH Open

V. Nguyen, H. Vu · 2024

Mở đầu: Bệnh phổi tắc nghẽn mạn tính (BPTNMT) là thuật ngữ chỉ một nhóm bệnh phổi được đặc trưng bởi sự tắc nghẽn luồng thông khí cố định. Đợt cấp BPTNMT là tình trạng diễn tiến xấu hơn của bệnh làm tăng tỷ lệ nhập viện, ảnh hưởng tới chất…

THỰC TRẠNG LO ÂU CỦA NGƯỜI BỆNH TRƯỚC PHẪU THUẬT CỘT SỐNG TẠI BỆNH VIỆN HỮU NGHỊ VIỆT ĐỨC NĂM 2024 Open

Thị Thìn Nguyễn, Lê Bảo Tiến Nguyễn, Ngọc Sơn Đinh, H. Vu, Khánh Linh · 2024

Mục tiêu: Khảo sát thực trạng lo âu của người bệnh trước phẫu thuật cột sống tại Bệnh viện Hữu Nghị Việt Đức năm 2024. Phương pháp nghiên cứu: Nghiên cứu mô tả cắt ngang được thực hiện trên 234 người bệnh phẫu thuật cột sống sử dụng bộ côn…

Large spontaneous Hall effect with flexible domain control in an antiferromagnetic material TaMnP Open

Hisashi Kotegawa, Akira Nakamura, H. Vu, Yuki Arai, Hideki Tou , et al. · 2024

Antiferromagnets without parity-time ($\mathcal{PT}$) symmetry offer novel perspectives in the field of functional magnetic materials. Among them, those with ferromagnetic-like responses are promising candidates for future applications suc…

Large anomalous Hall effect and unusual domain switching in an orthorhombic antiferromagnetic material NbMnP Open

Hisashi Kotegawa, Yoshiki Kuwata, H. Vu, Yuki Arai, Hideki Tou , et al. · 2023

Specific antiferromagnetic (AF) spin configurations generate large anomalous Hall effects (AHEs) even at zero magnetic field through nonvanishing Berry curvature in momentum space. In addition to restrictions on AF structures, suitable con…

Large anomalous Hall effect and unusual domain switching in an orthorhombic antiferromagnetic material NbMnP Open

Hisashi Kotegawa, Yoshiki Kuwata, H. Vu, Yuki Arai, Hideki Tou , et al. · 2023

Specific antiferromagnetic (AF) spin configurations generate large anomalous Hall effects (AHEs) even at zero magnetic field through nonvanishing Berry curvature in momentum space. In addition to restrictions on AF structures, suitable con…

tqix.pis: A toolbox for quantum dynamics simulation of spin ensembles in Dicke basis Open

Nguyen Tan Viet, Nguyen Thi Chuong, H. Vu, Le Bin Ho · 2022

We introduce tqix.pis, a library of tqix, for quantum dynamics simulation of spin ensembles. The library emulates a dynamic process by a quantum circuit, including initializing a quantum state, executing quantum operators, and measuring th…

Spin and anomalous Hall effects emerging from topological degeneracy in the Dirac fermion system CuMnAs Open

H. Vu, Yuki Yanagi, Michi‐To Suzuki · 2021

Orthorhombic CuMnAs has been proposed as an antiferromagnetic semimetal\nhosting nodal line and Dirac points around the Fermi level. We investigate\nrelations between the topological bands and transport phenomena, i.e. spin Hall\neffect an…

Topology analysis for anomalous Hall effect in the noncollinear antiferromagnetic states of Open

H. Vu, Michi‐To Suzuki, Kunihiko Yamauchi, Tamio Oguchi · 2019

We investigate topological features of electronic structures which produce\nlarge anomalous Hall effect in the non-collinear antiferromagnetic metallic\nstates of anti-perovskite manganese nitrides by first-principles calculations.\nWe fir…

Self-Optimized Biological Channels in Facilitating the Transmembrane Movement of Charged Molecules Open

H. Vu, Le Bin Ho, H. Vu, V. Lien Nguyen · 2016

We consider an anisotropically two-dimensional diffusion of a charged molecule (particle) through a large biological channel under an external voltage. The channel is modeled as a cylinder of three structure parameters: radius, length, and…

Self-optimized biological channels in facilitating the transmembrane movement of charged molecules Open

H. Vu, Le Bin Ho, H. Vu, V. Lien Nguyen · 2016

We consider an anisotropically two-dimensional diffusion of a charged molecule (particle) through a large biological channel under an external voltage. The channel is modeled as a cylinder of three structure parameters: radius, length, and…

Self-optimized biological channels in facilitating the transmembrane\n movement of charged molecules Open

H. Vu, Le Bin Ho, H. Vu, V. Lien Nguyen · 2016

We consider an anisotropically two-dimensional diffusion of a charged\nmolecule (particle) through a large biological channel under an external\nvoltage. The channel is modeled as a cylinder of three structure parameters:\nradius, length, …

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