Nihon University

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19932026

most citedThe MAXI Mission on the ISS: Science and Instruments for Monitoring All Sky X-Ray Images

845 citations

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cond-mat.str-el2026

Magnetoelastic effects in the metallic frustrated antiferromagnet CrB $_{2}$

Tadataka Watanabe, Mai Watanabe, Sakurako Suganuma +2

Hexagonal chromium diboride CrB $_{2}$ is a metallic frustrated antiferromagnet with a Néel temperature $T_{N} \sim$ 88 K. In CrB $_{2}$ , Cr 3 $d$ electrons not only give rise to localized…

cond-mat.str-el2026

Pressure Effects on CeMnSi: Evolution of Ce 4f and Mn 3d Electronic States and Negative Thermal Expansion

Sae Nishiyama, Haruka Mima, Jun-ichi Hayashi +6

We investigated pressure effects on the nontrivial heavy-fermion antiferromagnet CeMnSi by means of electrical resistivity and powder X-ray diffraction. With increasing pressure, t…

cond-mat.str-el2025

A sine-square deformation approach to quantum critical points in one-dimensional systems

Yuki Miyazaki, Shiori Tanigawa, Giacomo Marmorini +2

We propose a method to determine the quantum phase boundaries of one-dimensional systems using sine-square deformation (SSD). Based on the proposition, supported by several exactly…

cond-mat.str-el2025

Lieb-Schultz-Mattis-Type and Laughlin-Type Argument for the Quantum Hall Effect in Lattice Fermions with Spiral Boundary Conditions

Masaaki Nakamura, Masanori Yamanaka

We derive the condition for the occurrence of the integer quantum Hall effect in two-dimensional lattice systems with interactions, expressed as $ϕ ν - ρ \in Z$ , where $ϕ$ , $ν$ …

cond-mat.str-el2025★ 1 cited

Gapless behavior in a two-leg spin ladder with bond randomness

Yu Tominaga, Itsuki Shimamura, Takanori Kida +5

We successfully synthesized [Cu $_{2}$ (AcO) $_{4}$ ( $p$ -Py-V- $p$ -F) $_{2}$ ] $\cdot$ 4CHCl $_{3}$ , a verdazyl-based complex with a paddlewheel structure comprising two Cu atoms, which induces stro…

cond-mat.str-el2024★ 2 cited

Elastic softness of low-symmetry frustrated $A$ Ti $_{2}$ O $_{5}$ ( $A$ = Co, Fe)

Tadataka Watanabe, Kazuya Takayanagi, Ray Nishimura +4

Orthorhombic pseudobrookites CoTi $_{2}$ O $_{5}$ and FeTi $_{2}$ O $_{5}$ have a low-symmetry crystal structure comprising magnetic Co $^{2 +}$ /Fe $^{2 +}$ ions and nonmagnetic Ti $^{4 +}$ ions, wher…

Magnetoelastic effects in the metallic frustrated antiferromagnet CrB2​