Zobrazeno 1 - 10
of 3 160
pro vyhledávání: '"M, Tokunaga"'
Field-induced multiple metal-insulator crossovers of correlated Dirac electrons of perovskite CaIrO3
Autor:
R. Yamada, J. Fujioka, M. Kawamura, S. Sakai, M. Hirayama, R. Arita, T. Okawa, D. Hashizume, T. Sato, F. Kagawa, R. Kurihara, M. Tokunaga, Y. Tokura
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-6 (2022)
Abstract The interplay between electron correlation and topology of relativistic electrons may lead to a fascinating stage of the research on quantum materials and emergent functions. The emergence of various collective electronic orderings/liquids,
Externí odkaz:
https://doaj.org/article/dd36f4b602944f328a88b1cd907f3483
Autor:
M. Tokunaga
Publikováno v:
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLIII-B3-2020, Pp 209-214 (2020)
A method for extracting degraded trees was developed by using a near-infrared camera modified from a digital camera to photograph roadside trees. Traditionally, remote sensing has utilized vegetation index using near-infrared and red bands as a metho
Externí odkaz:
https://doaj.org/article/fed560793ce844b29adcd6d870630590
Autor:
Kenta Kuroda, Y. Arai, N. Rezaei, S. Kunisada, S. Sakuragi, M. Alaei, Y. Kinoshita, C. Bareille, R. Noguchi, M. Nakayama, S. Akebi, M. Sakano, K. Kawaguchi, M. Arita, S. Ideta, K. Tanaka, H. Kitazawa, K. Okazaki, M. Tokunaga, Y. Haga, S. Shin, H. S. Suzuki, R. Arita, Takeshi Kondo
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
CeSb undergoes a devil’s staircase sequence of extremely long-period modulations of the magnetically ordered 4f states. Here, the authors visualize how the devil’s staircase ordering impacts mobile electrons and collapses the well-defined band pi
Externí odkaz:
https://doaj.org/article/8b80ea5db24d4c249d53106240cc8ef0
Autor:
Y. Fujishiro, N. Kanazawa, T. Nakajima, X. Z. Yu, K. Ohishi, Y. Kawamura, K. Kakurai, T. Arima, H. Mitamura, A. Miyake, K. Akiba, M. Tokunaga, A. Matsuo, K. Kindo, T. Koretsune, R. Arita, Y. Tokura
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
Manipulating topological spin textures are demanded for future spintronic devices, but knowledge about phase transitions among different spin textures remain limited. Here, Fujishiro and Kanazawa et al. report chemical-pressure-controlled phase trans
Externí odkaz:
https://doaj.org/article/e489a55c73fd4b7f977715dbd4a413ec
Autor:
R. Okuma, D. Nakamura, T. Okubo, A. Miyake, A. Matsuo, K. Kindo, M. Tokunaga, N. Kawashima, S. Takeyama, Z. Hiroi
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
In many quantum magnets, an applied magnetic field competes with the expected zero-field state, leading to complex magnetic behavior. Okuma et al. observe the formation of quantum magnetization plateaus in a kagomé antiferromagnet and argue they for
Externí odkaz:
https://doaj.org/article/b70d5e77950d47b288a7ef91eb8d48ea
Autor:
M. Gen, H. Ishikawa, A. Ikeda, A. Miyake, Z. Yang, Y. Okamoto, M. Mori, K. Takenaka, H. Sagayama, T. Kurumaji, Y. Tokunaga, T. Arima, M. Tokunaga, K. Kindo, Y. H. Matsuda, Y. Kohama
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033148 (2022)
Frustrated magnets with a strong spin-lattice coupling can show rich magnetic phases and the associated fascinating phenomena. A promising platform is the breathing pyrochlore magnet CuInCr_{4}S_{8} with localized S=3/2Cr^{3+} ions, which is proposed
Externí odkaz:
https://doaj.org/article/d830c7ec8033434f9c7ac0ea27a72c9f
Autor:
M. Ohno, M. Uchida, Y. Nakazawa, S. Sato, M. Kriener, A. Miyake, M. Tokunaga, Y. Taguchi, M. Kawasaki
Publikováno v:
APL Materials, Vol 9, Iss 5, Pp 051107-051107-4 (2021)
While the family of layered pnictides ABX2 (A—rare or alkaline earth metals, B—transition metals, and X—Sb/Bi) can host Dirac dispersions based on Sb/Bi square nets, nearly half of them have not yet been synthesized for possible combinations of
Externí odkaz:
https://doaj.org/article/75c84d8bfdd14b12985360e5a4b0a444
Autor:
Y. Fujishiro, N. Kanazawa, T. Shimojima, A. Nakamura, K. Ishizaka, T. Koretsune, R. Arita, A. Miyake, H. Mitamura, K. Akiba, M. Tokunaga, J. Shiogai, S. Kimura, S. Awaji, A. Tsukazaki, A. Kikkawa, Y. Taguchi, Y. Tokura
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)
Topological spin textures produce versatile electronic functionalities, but are scarcely exploited for achieving heat to electricity conversion. Here, Fujishiro et al. attribute an enhanced magneto-thermopower in MnGe with topological spin hedgehogs,
Externí odkaz:
https://doaj.org/article/c9944bd6ccd344a0a015bab83486a2c2
Autor:
M. Kondo, M. Ochi, R. Kurihara, A. Miyake, Y. Yamasaki, M. Tokunaga, H. Nakao, K. Kuroki, T. Kida, M. Hagiwara, H. Murakawa, N. Hanasaki, H. Sakai
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3249b2d9daea25bdf715ff9f8c0d1962
https://doi.org/10.1103/physrevb.107.l121112
https://doi.org/10.1103/physrevb.107.l121112
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef7dc24d702f10ac4767bcf65c8d64eb
https://doi.org/10.1103/physrevb.107.125140
https://doi.org/10.1103/physrevb.107.125140