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Watanabe, Jin*; Araki, Yasufumi; Kobayashi, Koji*; Ozawa, Akihiro*; Nomura, Kentaro*
Journal of the Physical Society of Japan, 91(8), p.083702_1 - 083702_5, 2022/08
Times Cited Count：3 Percentile：58.88(Physics, Multidisciplinary)We investigate magnetic orderings on kagome lattice numerically from the tight-binding Hamiltonian of electrons, governed by the filling factor and spin-orbit coupling (SOC) of electrons. We find that even a simple kagome lattice model can host both ferromagnetic and noncollinear antiferromagnetic orderings depending on the electron filling, reflecting gap structures in the Dirac and flat bands characteristic to the kagome lattice. Kane-Mele- or Rashba-type SOC tends to stabilize noncollinear orderings, such a magnetic spirals and 120-degree antiferromagnetic orderings, due to the effective Dzyaloshinskii-Moriya interaction from SOC. The obtained phase structure helps qualitative understanding of magnetic orderings in various kagome-layered materials with Weyl or Dirac electrons.
SR and NMR studiesHiga, Nonoka*; Ito, Takashi; Yogi, Mamoru*; Hattori, Taisuke; Sakai, Hironori; Kambe, Shinsaku; Guguchia, Z.*; Higemoto, Wataru; Nakashima, Miho*; Homma, Yoshiya*; et al.
Physical Review B, 104(4), p.045145_1 - 045145_7, 2021/07
Times Cited Count：0 Percentile：0(Materials Science, Multidisciplinary)
Pt NMRTokunaga, Yo; Nakamura, Ai*; Aoki, Dai*; Shimizu, Yusei*; Homma, Yoshiya*; Honda, Fuminori*; Sakai, Hironori; Hattori, Taisuke; Kambe, Shinsaku
Physical Review B, 98(1), p.014425_1 - 014425_5, 2018/07
Times Cited Count：2 Percentile：10.36(Materials Science, Multidisciplinary)Pt NMR measurements have been performed on a single crystal of the uranium-based compound UPtGe, which is the only 5f system known to possess an incommensurate helical (cycloidal) structure below TN = 50 K. Knight shift measurement confirmed the isotropic character of the static spin susceptibilities in hexagonal-like ac crystal planes of the EuAuGe-type crystal structure. The hyperfine coupling constants were also found to be isotropic in the planes. Nuclear relaxation rate measurement revealed the development of the antiferro-magnetic spin fluctuations with XY character confined to the hexagonal-like plane below 200 K. The results present a clear contrast to the Ising anisotropy of the fluctuations in ferromagnetic superconductors UCoGe and URhGe.
-Gd
S
Matsuda, Masaaki; Kikkawa, Akiko*; Katsumata, Koichi*; Ebisu, Shuji*; Nagata, Shoichi*
Journal of the Physical Society of Japan, 74(5), p.1412 - 1415, 2005/05
Times Cited Count：19 Percentile：67.64(Physics, Multidisciplinary)no abstracts in English
Vyaselev, O.*; Takigawa, Masashi*; Vasiliev, A.*; Osawa, Akira; Tanaka, Hidekazu*
Physical Review Letters, 92(20), p.207202_1 - 207202_4, 2004/05
Times Cited Count：37 Percentile：79.57(Physics, Multidisciplinary)We report the results of Cu and Cl nuclear magnetic resonance experiments and thermal expansion measurements in magnetic fields in the coupled dimer spin system TlCuCl. We found that the field-induced antiferromagnetic transition as confirmed by the splitting of NMR lines is slightly discontinuous. The abrupt change of the electric field gradient at the Cl sites, as well as the sizable change of the lattice constants, across the phase boundary indicate that the magnetic order is accompanied by simultaneous lattice deformation. These results suggest the importance of the spin-lattice correlations in this system.
Ce
CuO
Matsuda, Masaaki; Katano, Susumu; Uefuji, T.*; Fujita, Masaki*; Yamada, Kazuyoshi*
Physical Review B, 66(17), p.172509_1 - 172509_4, 2002/11
Times Cited Count：17 Percentile：62.74(Materials Science, Multidisciplinary)no abstracts in English
Miyahara, Tsuneaki*; Ishii, Hiroyoshi*; Takayama, Yasuhiro*; Hirose, Masaaki*; Maruyama, Kenichi*; Obu, Kenji*; Shinoda, Motoki*; Muro, Takayuki*; Saito, Yuji; Matsuda, Tatsuma*; et al.
Journal of the Physical Society of Japan, 70(10), p.2977 - 2981, 2001/10
Times Cited Count：6 Percentile：42.11(Physics, Multidisciplinary)no abstracts in English
; Neutron diffraction and scattering studyNakamura, Hiroyuki*; Yamasaki, Tomoaki*; Giri, S.*; Imai, Hideto*; Shiga, Masayuki*; Kojima, Kenji*; Nishi, Masakazu*; Kakurai, Kazuhisa*; Metoki, Naoto
Journal of the Physical Society of Japan, 69(9), p.2763 - 2766, 2000/09
Times Cited Count：61 Percentile：87(Physics, Multidisciplinary)no abstracts in English
Mn
Te*; *; Sato, K.*; *; *; *; *; *; Morii, Yukio; *
Journal of Physics and Chemistry of Solids, 60(8-9), p.1253 - 1255, 1999/00
Times Cited Count：2 Percentile：17.06(Chemistry, Multidisciplinary)no abstracts in English
O
Katano, Susumu; *; Akimitsu, Jun*; *; Funahashi, Satoru; H.R.Child*
Physica B; Condensed Matter, 213-214, p.212 - 214, 1995/00
Times Cited Count：1 Percentile：10.72(Physics, Condensed Matter)no abstracts in English
Fe
AlO
studied by means of single-crystal neutron diffraction measurementsNakajima, Taro*; Tokunaga, Yusuke*; Matsuda, Masaaki*; Dissanayake, S.*; Fernandez-Baca, J. A.*; Kakurai, Kazuhisa; Taguchi, Yasujiro*; Tokura, Yoshinori*; Arima, Takahisa*
no journal, ,
no abstracts in English
RhSiShamoto, Shinichi; Ikeuchi, Kazuhiko*; Kajimoto, Ryoichi; Yamauchi, Hiroki; Balakrishnan, G.*; Chang, L.-J.*
no journal, ,
no abstracts in English
(
: Al, Ga, Si)Haga, Yoshinori; Matsumoto, Yuji*; Yamamoto, Etsuji
no journal, ,
no abstracts in English
