33 citations · 135 across the 16 of their papers we have counts for
16 papers
Realization of a triangular spin necklace in a verdazyl-based Ni complex
Itsuki Shimamura, Risa Yagura, Takanori Kida +6
We successfully synthesized a verdazyl-based complex, (-Py-V)[Ni(NO)], in which Ni ions and verdazyl radicals form a one-dimensional, triangular spin necklace…
Experimental benchmark of the quantum-classical crossover in a spin ladder
Hironori Yamaguchi, Itsuki Shimamura, Akira Matsuo +4
We report a spin-(1/2, 5/2) three-leg ladder realized in a radical-Mn polymer, exhibiting an antiferromagnetic transition and magnetization curves accurately described by classical…
Gapless behavior in a two-leg spin ladder with bond randomness
Yu Tominaga, Itsuki Shimamura, Takanori Kida +5
We successfully synthesized [Cu(AcO)(-Py-V--F)]4CHCl, a verdazyl-based complex with a paddlewheel structure comprising two Cu atoms, which induces stro…
Quantum spin state stabilized by coupling with classical spins
Hironori Yamaguchi, Tsuyoshi Okubo, Akira Matsuo +5
We introduce a model compound featuring a spin-1/2 frustrated square lattice partially coupled by spin-5/2. A significant magnetization plateau exceeding 60 T could be observed, in…
Quantum gapped state in a spin-1/2 distorted honeycomb-based lattice with frustration
Hironori Yamaguchi, Satoshi Morota, Takanori Kida +5
We successfully synthesized (-Py-V)[Cu(hfac)], a verdazyl-based complex. Molecular orbital calculations revealed five types of intermolecular interactions between the radica…
Field-induced quantum phase in a frustrated zigzag-square lattice
Hironori Yamaguchi, Kazutoshi Shimamura, Yasuo Yoshida +10
This study presents the experimental realization of a spin-1/2 zigzag-square lattice in a verdazyl-based complex, namely (-Py-V-2,6-F)Cu(hfac). Molecular orbital cal…
Spin-Peierls transition to a Haldane phase
Hironori Yamaguchi, Hiroki Takahashi, Takashi Kawakami +4
We present an organic compound exhibiting a spin-Peierls (SP) transition to an effective spin-1 antiferromagnetic uniform chain, that is, the Haldane chain. The clear disappearance…
Gapped ground state in a spin-1/2 frustrated square lattice
H. Yamaguchi, N. Uemoto, T. Okubo +7
We present a model compound with a spin-1/2 frustrated square lattice, in which three ferromagnetic (F) interactions and one antiferromagnetic (AF) compet. Considering the effectiv…
Quantum critical phenomena in a spin-1/2 frustrated square lattice with spatial anisotropy
H. Yamaguchi, Y. Iwasaki, Y. Kono +7
We present a model compound with a spin-1/2 spatially anisotropic frustrated square lattice, in which three antiferromagnetic interactions and one ferromagnetic interaction are com…
Experimental realization of Lieb-Mattis plateau in a quantum spin chain
H. Yamaguchi, T. Okita, Y. Iwasaki +7
We present a mixed spin-(1/2, 5/2) chain composed of a charge-transfer salt (4-Br--MePy-V)FeCl. We observe the entire magnetization curve up to saturation, which exhibits a…
=1/2 ferromagnetic Heisenberg chain in a verdazyl-based complex
N. Uemoto, Y. Kono, S. Kittaka +6
We present a model compound for the =1/2 ferromagnetic Heisenberg chain composed of the verdazyl-based complex Zn(hfac)4-Cl--Py-V-(4-F). MO calc…
Field-induced quantum magnetism in the verdazyl-based charge-transfer salt -MePy-V-(-Br)FeCl
Y. Iwasaki, T. Kida, M. Hagiwara +6
We successfully synthesized a verdazyl-based charge-transfer salt -MePy-V-(-Br)FeCl, which has an =1/2 on the radical -MePy-V-(-Br) and an $…
Field-enhanced quantum fuctuation in S=1/2 frustrated square lattice
H. Yamaguchi, Y. Sasaki, T. Okubo +9
We present a new model compound with the S = 1/2 frustrated square lattice composed of the charge-transfer salt (o-MePy-V)PF6. Ab initio calculations indicate the formation of an S…
Magnetotransport in Layered Dirac Fermion System Coupled with Magnetic Moments
Yoshiki Iwasaki, Takao Morinari
We theoretically investigate the magnetotransport of Dirac fermions coupled with localized moments to understand the physical properties of the Dirac material EuMnBi. Using an…
Randomness-induced quantum spin liquid on honeycomb lattice
H. Yamaguchi, M. Okada, Y. Kono +5
We present a quantu spin liquid state in a spin-1/2 honeycomb lattice with randomness in the exchange interaction. That is, we successfully introduce randomness into the organic ra…
Magnetic properties of quasi-two-dimensional = 1/2 Heisenberg antiferromagnet with distorted square lattice
Hironori Yamaguchi, Yusuke Tamekuni, Yoshiki Iwasaki +4
We successfully synthesize single crystals of the verdazyl radical -2,3,5-Cl-V. molecular orbital calculations indicate that the two dominant antiferromagnetic…