322 citations · 2.7k across the 54 of their papers we have counts for
54 papers
Dynamics of quantum spin-nematics: Comparisons with canted antiferromagnets
Tsutomu Momoi
The identification of spin-nematic states is challenging due to the absence of Bragg peaks. However, the study of dynamical physical quantities provides a promising avenue for char…
Novel quantum phase of the chromium spinel oxide HgCrO in high magnetic fields
Shojiro Kimura, Shusaku Imajo, Masaki Gen +4
In this study, we have performed the magnetocaloric effect and the specific heat measurements of chromium spinel oxide HgCrO, wherein the magnetic Cr ions form a hig…
Magnetically hidden state on the ground floor of the magnetic Devil's staircase
Shusaku Imajo, Naofumi Matsuyama, Toshihiro Nomura +10
We investigated the low-temperature and high-field thermodynamic and ultrasonic properties of SrCu2(BO3)2, which exhibits various plateaux in its magnetization curve above 27~T, ca…
Anomalies of kagome antiferromagnets on magnetization plateaus
Shunsuke C. Furuya, Yusuke Horinouchi, Tsutomu Momoi
We discuss the ground-state degeneracy of spin- kagome-lattice quantum antiferromagnets on magnetization plateaus by employing two complementary methods: the adiabatic flux in…
Effects of Dzyaloshinskii-Moriya interactions in volborthite: Magnetic orders and thermal Hall effect
Shunsuke Furukawa, Tsutomu Momoi
Volborthite offers an interesting example of a highly frustrated quantum magnet in which ferromagnetic and antiferromagnetic interactions compete on anisotropic kagome lattices. A…
Spin nematics in frustrated spin-dimer systems with bilayer structure
Toshiya Hikihara, Takahiro Misawa, Tsutomu Momoi
We study frustrated spin-1/2 dimer systems in two dimensions with a bilayer structure, where spins are ferromagnetically coupled in dimers. Our model includes frustrated two-spin e…