53 citations · 301 across the 23 of their papers we have counts for
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Successive Antiferromagnetic Transition in the Frustrated Compound CeMgIn
Kou Onishi, Hitoshi Sugawara, Takahiro Sakurai +2
We report on the magnetic, transport, and thermal properties of the hexagonal ZrNiAl-type compound CeMgIn with Ce atoms forming a distorted kagome network. This compound exhibits s…
Pressure-tuned quantum criticality in the large- antiferromagnet DTN
Kirill Yu. Povarov, David E. Graf, Andreas Hauspurg +11
Strongly correlated spin systems can be driven to quantum critical points via various routes. In particular, gapped quantum antiferromagnets can undergo phase transitions into a ma…
Continuous control of classical-quantum crossover by external high pressure in the coupled chain compound CsCuCl
Daisuke Yamamoto, Takahiro Sakurai, Ryosuke Okuto +4
In solid materials, the parameters relevant to quantum effects, such as the spin quantum number, are basically determined and fixed at the chemical synthesis, which makes it challe…
First ESR Detection of Higgs Amplitude Mode and Analysis with Extended Spin-Wave Theory in Dimer System KCuCl
Masashige Matsumoto, Takahiro Sakurai, Yuki Hirao +3
KCuCl is known to show a quantum phase transition from the disordered to antiferromagnetically ordered phases by applying pressure. There is a longitudinal excitation mode (Hig…
Pressure control of the magnetic anisotropy of the quasi-two-dimensional van der Waals ferromagnet CrGeTe
T. Sakurai, B. Rubrecht, L. T. Corredor +10
We report the results of the pressure-dependent measurements of the static magnetization and of the ferromagnetic resonance (FMR) of CrGeTe to address the properties of…
First-order phase transition to a nonmagnetic ground state in nonsymmorphic NbCrP
Yoshiki Kuwata, Hisashi Kotegawa, Hideki Tou +9
We report the discovery of a first-order phase transition at around 125 K in NbCrP, which is a nonsymmorphic crystal with Pnma space group. From the resistivity, magnetic susceptib…
Helimagnetic Structure and Heavy-Fermion-Like Behavior in the Vicinity of the Quantum Critical Point in MnP
H. Kotegawa, M. Matsuda, F. Ye +13
Antiferromagnet MnP with Neel temperature K is composed of Mn-tetrahedrons and zigzag chains formed by three inequivalent Mn sites. Due to the nearly frustrated lattic…
Pressure-tuning the quantum spin Hamiltonian of the triangular lattice antiferromagnet CsCuCl
S. A. Zvyagin, D. Graf, T. Sakurai +6
Quantum triangular-lattice antiferromagnets are important prototype systems to investigate phenomena of the geometrical frustration in condensed matter. Apart from highly unusual m…
Superlattice formation lifting degeneracy protected by non-symmorphic symmetry through a metal-insulator transition in RuAs
Hisashi Kotegawa, Keiki Takeda, Yoshiki Kuwata +6
The single crystal of RuAs obtained by Bi-flux method shows obvious successive metal-insulator transitions at T_MI1~255 K and T_MI2~195$ K. The X-ray diffraction measurement reveal…
Direct Observation of the Quantum Phase Transition of SrCu(BO) by High-Pressure and Terahertz Electron Spin Resonance
Takahiro Sakurai, Yuki Hirao, Keigo Hijii +5
High-pressure and high-field electron spin resonance (ESR) measurements have been performed on a single crystal of the orthogonal-dimer spin system SrCu(BO). With…
Dzyaloshinsky-Moriya interaction and the ground state in S=3/2 perfect kagome lattice antiferromagnet (Cr-jarosite) studied by X-band and high-frequency ESR
Susumu Okubo, Ryohei Nakata, Hitoshi Ohta +9
A single crystal S=3/2 perfect kagome lattice antiferromagnet (Cr-jarosite) has been studied by X-band and high-frequency electron spin resonance (ES…
NaCuMoO_4(OH) as a Candidate Frustrated J_1-J_2 Chain Quantum Magnet
Kazuhiro Nawa, Yoshihiko Okamoto, Akira Matsuo +9
In a frustrated J_1-J_2 chain with the nearest-neighbor ferromagnetic interaction J_1 and the next-nearest-neighbor antiferromagnetic interaction J_2, novel magnetic states such as…
Anomalous Spin Dynamics observed by High Frequency ESR in Honeycomb Lattice Antiferromagnet InCu2/3V1/3O3
Susumu Okubo, Hideo Wada, Hitoshi Ohta +5
High-frequency ESR results on the S=1/2 Heisenberg hexagonal antiferromagnet InCu2/3V1/3O3 are reported. This compound appears to be a rare model substance for the honeycomb lattic…
High-Field ESR Measurements of S=1/2 Kagome Lattice Antiferromagnet BaCuVO(OH)
Wei-min Zhang, Hitoshi Ohta, Susumu Okubo +5
High-field electron spin resonance (ESR) measurements have been performed on vesignieite BaCuVO(OH), which is considered as a nearly ideal model substance of =1/…