Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Yamaguchi, Tomoki"'
Publikováno v:
Phys. Rev. B 103, 184410 (2021)
We study a Kagome-like spin-$1/2$ Heisenberg ladder with competing ferromagnetic (FM) and antiferromagnetic (AFM) exchange interactions. Using the density-matrix renormalization group based calculations, we obtain the ground state phase diagram as a
Externí odkaz:
http://arxiv.org/abs/2103.01455
Autor:
Katayama, Naoyuki, Kojima, Keita, Yamaguchi, Tomoki, Hattori, Sosuke, Tamura, Shinya, Ohara, Koji, Kobayashi, Shintaro, Sugimoto, Koudai, Ohta, Yukinori, Saitoh, Koh, Sawa, Hiroshi
Publikováno v:
npj Quantum Materials 6 (2021) 16. (Open Access)
Electronic instabilities in transition metal compounds often spontaneously form orbital molecules, which consist of orbital-coupled metal ions at low temperature. Recent local structural studies utilizing the pair distribution function revealed that
Externí odkaz:
http://arxiv.org/abs/2102.09795
Autor:
Takahashi, Ryo, Yamaguchi, Tomoki, Sugimoto, Koudai, Yamauchi, Touru, Sakurai, Hiroya, Ohta, Yukinori
Motivated by an experimental finding that the successive phase transitions in $\alpha$-Sr$_2$CrO$_4$ observed at ambient pressure ceases to exist under high pressures, we carry out the density-functional-theory-based electronic structure calculations
Externí odkaz:
http://arxiv.org/abs/2002.07960
Publikováno v:
Phys. Rev. B 101, 104407 (2020)
We study an asymmetric $J_1$-$J_2$ zigzag ladder consisting of two different spin-$\frac{1}{2}$ antiferromagnetic (AFM; $J_2$, $\gamma J_2>0$) Heisenberg legs coupled by zigzag-shaped ferromagnetic (FM; $J_1<0$) inter-leg interaction. On the basis of
Externí odkaz:
http://arxiv.org/abs/1911.05270
Autor:
Ejima, Satoshi, Yamaguchi, Tomoki, Essler, Fabian H. L., Lange, Florian, Ohta, Yukinori, Fehske, Holger
Publikováno v:
SciPost Phys. 5, 059 (2018)
We consider the dimerized spin-1 $XXZ$ chain with single-ion anisotropy $D$. In absence of an explicit dimerization there are three phases: a large-$D$, an antiferromagnetically ordered and a Haldane phase. This phase structure persists up to a criti
Externí odkaz:
http://arxiv.org/abs/1810.02195
Publikováno v:
J. Phys. Soc. Jpn. 86, 043701 (2017)
We study the excitonic phase and low-energy excitation spectra of perovskite cobalt oxides. Constructing the five-orbital Hubbard model defined on the three-dimensional cubic lattice for the $3d$ bands of Pr$_{0.5}$Ca$_{0.5}$CoO$_3$, we calculate the
Externí odkaz:
http://arxiv.org/abs/1701.07943
Publikováno v:
JA Clinical Reports; 9/4/2024, Vol. 10 Issue 1, p1-5, 5p
Autor:
Howard-Quijano, Kimberly, Yamaguchi, Tomoki, Gao, Fei, Kuwabara, Yuki, Puig, Stephanie, Lundquist, Eevanna, Salavatian, Siamak, Taylor, Bradley, Mahajan, Aman
Publikováno v:
In JACC: Clinical Electrophysiology October 2021 7(10):1211-1225
Publikováno v:
Journal of Radioanalytical & Nuclear Chemistry; Jul2024, Vol. 333 Issue 7, p3541-3551, 11p
Autor:
Yamagishi, Nobuyuki *, Yamaguchi, Tomoki, Kuga, Takahisa, Taniguchi, Masanari, Khan, Mohammad Shahriar, Matsumoto, Takahiro, Deguchi, Yuya, Nagaoka, Hiroaki, Wakabayashi, Keiji, Watanabe, Tetsushi
Publikováno v:
In Toxicology Reports 2020 7:859-866