Our center also plays a supportive role in the Program for Leading Graduate Schools MERIT (Materials Education program for the future leaders in Research, Industry and Technology, Coordinator: Prof. Masashi Kawasaki)
QPEC's Social Cooperation Unit is part of human resource training program founded by the RIKEN Center for Emergent Matter Science (CEMS)
NEWS & TOPICS
"A cascade of phase transitions in an orbitally mixed half-filled Landau level"
J. Falson, D. Tabrea, D. Zhang, I. Sodemann, Y. Kozuka, A. Tsukazaki, M. Kawasaki, K. von Klitzing, and J. H. Smet
Science Advances
DOI: 10.1126/sciadv.eaat8742
"Ultrafast dissolution and creation of bonds in IrTe2 induced by photodoping"
S. Ideta, D. Zhang, A. G. Dijkstra, S. Artyukhin, S. Keskin, R. Cingolani, T. Shimojima, K. Ishizaka, H. Ishii, K. Kudo, M. Nohara and R. J. D. Miller
Science Advances
DOI: 10.1126/sciadv.aar3867
QPEC recruits Associate Professor or Lecturer. For the details, please see here.
"Gate-tuned quantum Hall states in Dirac semimetal (Cd1-xZnx)3As2"
S. Nishihaya, M. Uchida, Y. Nakazawa, M. Kriener, Y. Kozuka, Y. Taguchi, and M. Kawasaki
Science Advances
DOI: 10.1126/sciadv.aar5668
"Tensile-strain-dependent spin states in epitaxial LaCoO3 thin films"
Y. Yokoyama, Y. Yamasaki, M. Taguchi, Y. Hirata, K. Takubo, J. Miyawaki, Y. Harada, D. Asakura, J. Fujioka, M. Nakamura, H. Daimon, M. Kawasaki, Y. Tokura, and H. Wadati
Physical Review Letters
DOI: 10.1103/PhysRevLett.120.206402
"Quantum phase transitions in highly crystalline two-dimensional superconductors"
Y. Saito, T. Nojima and Y. Iwasa
Nature Communications
DOI :10.1038/s41467-018-03275-z
"Quantum Hall states observed in thin films of Dirac semimetal Cd3As2"
M. Uchida, Y. Nakazawa, S. Nishihaya, K. Akiba, M. Kriener, Y. Kozuka, A. Miyake, Y.Taguchi, M. Tokunaga, N. Nagaosa, Y. Tokura, and M. Kawasaki
Nature Communications
DOI :10.1038/s41467-017-02423-1
2018 January issue of Nature Materials
Dr. M. S. Bahramy’s recent work on topological phases in transition metal dichalcogenides has been featured on the cover of January issue of Nature Materials.
For the details, please see Nature Materials.
"Ubiquitous Formation of Bulk Dirac Cones and Topological Surface States from a Single Orbital Manifold in Transition-metal Dichalcogenides"
M.S. Bahramy, O.J. Clark, B.-J. Yang, J. Feng, L. Bawden, J. M. Riley, I. Markovic, F. Mazzola, V. Sunko, D. Biswas, S. P. Cooil, M. Jorge, J.W.Wells, M. Leandersson, T. Balasubramanian, J. Fujii, I. Vobornik, J. Rault, T. K. Kim, M. Hoesch, K. Okawa, M. Asakawa, T. Sasagawa, T. Eknapakul, W. Meevasana, and P.D.C. King
Nature Materials DOI :10.1038/NMAT5031
For the details, please see the press release.
"Exciton Hall effect in monolayer MoS2"
M. Onga, Y. J. Zhang, T. Ideue, and Y. Iwasa
Nature Materials DOI :10.1038/nmat4996
"Slow dynamics of electrons at a metal–Mott insulator boundary in an organic system with disorder"
T. Itou, E. Watanabe, S. Maegawa, A. Tajima, N. Tajima, K. Kubo, R. Kato, and K. Kanoda
Science Advances DOI :10.1126/sciadv.1601594
"Giant thermal Hall effect in multiferroics"
T. Ideue, T. Kurumaji, S. Ishiwata, and Y. Tokura
Nature Materials DOI :10.1038/NMAT4905
"Bulk rectification effect in a polar semiconductor"
T. Ideue, K. Hamamoto, S. Koshikawa, M. Ezawa, S. Shimizu, Y. Kaneko, Y. Tokura, N. Nagaosa, and Y. Iwasa
Nature Physics DOI :10.1038/NPHYS4056
"Observation of anomalous Hall effect in a non-magnetic two-dimensional electron system"
D. Maryenko, A.S. Mishchenko, M.S. Bahramy, A. Ernst, J. Falson, Y. Kozuka, A. Tsukazaki, N. Nagaosa, and M. Kawasaki
Nature Communications DOI :10.1038/NCOMMS14777
"Upper critical field reaches 90 tesla near the Mott transition in fulleride superconductors"
Y. Kasahara, Y. Takeuchi, R. H. Zadik, Y. Takabayashi, R. H. Colman, R. D. McDonald, M. J. Rosseinsky, K. Prassides, and Y. Iwasa
Nature Communications DOI :10.1038/ncomms14467
"Superconductivity in a chiral nanotube"
F. Qin, W. Shi, T. Ideue, M. Yoshida, A. Zak, R. Tenne, T. Kikitsu, D. Inoue, D. Hashizume, and Y. Iwasa
Nature Communications DOI :10.1038/ncomms14465 QPEC Assessment Committee
QPEC received a high evaluation about our research from Prof. Norio Kawakami (Kyoto University), Prof. Jean-Marc Triscone (University of Geneva), and Prof. Zhi-Xun Shen(Stanford University).
"Critical enhancement of thermopower in a chemically tuned polar semimetal MoTe2"
H. Sakai, K. Ikeura, M. S. Bahramy, N. Ogawa, D. Hashizume, J. Fujioka, Y. Tokura, and S. Ishiwata
Science Advances 2, e1601378 (2016) DOI: 10.1126/sciadv.1601378
CEMS-QPEC Symposium on "Emergent Quantum Materials"
QPEC will host CEMS-QPEC Symposium on "Emergent Quantum Materials" jointly with RIKEN Center for Emergent Matter Science, at Ito Hall in January 18-20 2017. For the details, please see here.
QPEC TMD Workshop
QPEC TMD Workshop will be held on Mach 29 (Tue) 2016 as follows:
(Venue)
Room 103, Bldg.6, Faculty of Engineering
(Program)
10:00 Ishizaka Group
11:00 Ishiwata group
12:00 Lunch
13:00 Iwasa group
14:00 Motome group
"Quantum Hall effect in a bulk antiferromagnet EuMnBi2 with magnetically confined two-dimensional Dirac fermions"
H. Masuda, H. Sakai, M. Tokunaga, Y. Yamasaki, A. Miyake, J. Shiogai, S. Nakamura, S. Awaji, A. Tsukazaki, H. Nakao, Y. Murakami, T. Arima, Y. Tokura and S. Ishiwata
Science Advances 2, e1501117 (2016) DOI: 10.1126/sciadv.1501117
"2D superconductor surviving in high magnetic fields over 50 Tesla"
Y. Saito, Y. Nakamura, M. S. Bahramy, Y. Kohama, J. T. Ye, Y. Kasahara,
Y. Nakagawa, M. Onga, M. Tokunaga, T. Nojima, Y. Yanase and Y. Iwasa
Nature Physics DOI :10.1038/nphys3580
"Exciton Lifetime Paradoxically Enhanced by Dissipation and Decoherence: Toward Efficient Energy Conversion of a Solar Cell"
Y. Yamada, Y. Yamaji and M. Imada
Physical Review Letters DOI :10.1103/PhysRevLett.115.197701
"Uniaxial stress control of skyrmion phase"
Y. Nii, T. Nakajima, A. Kikkawa, Y. Yamasaki, K. Ohishi, J. Suzuki, Y. Taguchi, T. Arima, Y. Tokura, and Y. Iwasa
Nature Communications DOI :10.1038/ncomms9539
"Discovery of a two-dimensional crystal functioning as a phase-change memristor"
M. Yoshida, R. Suzuki, Y. J. Zhang, M. Nakano and Y. Iwasa
Science Advances DOI :10.1126/sciadv.1500606
"Is the ultimate 2D superconductor really superconducting? － Quantum state in an atomically thin 2D superconductor without disorder"
Y. Saito, Y. Kasahara, J. T. Ye, Y. Iwasa and T. Nojima
Science Express DOI :10.1126/science.1259440
"Emergence of "Devil's staircase": Anomalous spin ordering revealed by brilliant synchrotron x-ray"
T. Matsuda, T. Tsuyama, T. Saito, S. Ishiwata, Y. Tokura and H. Wadati
Prof. Yoshihiro Iwasa received the Honda Frontier Award
The Honda Memorial Fundation
"Experimental observation of the quantization in surface Dirac states of topological insulator -Towards the application of low-power electric devices"
R. Yoshimi, M. Kawasaki and Y. Tokura
Nature Communications DOI : 10.1038/ncomms7627
"New quantum phase in a ZnO interface of best semiconductor quality"
J. Falson, D. Maryenko, B. Friess, D. Zhang, Y. Kozuka, A. Tsukazaki, J. Smet and M. Kawasaki
Nature Physics DOI :10.1038/nphys3259
"Magnetochiral dichroism resonant with electromagnons in a helimagnet"
S. Kibayashi, Y. Takahashi, S. Seki and Y. Tokura
Nature Communications DOI : 10.1038/ncomms5583
"A proposal of valleytronics material - Unveiling peculiar electronic states and their control in a two-dimensional material -"
R. Suzuki, M. Sakano, Y. J. Zhang, R. Akashi, D. Morikawa, A. Harasawa, K. Yaji, K. Kuroda, K. Miyamoto, T. Okuda, K. Ishizaka, R. Arita, & Y. Iwasa
Nature Nanotechnology (2014) DOI : 10.1038/nnano.2014.148
Dr. Masaki Nakano and Dr. Youhei Yamaji were appointed Lecturer at Department of Applied Physics under MERIT program
Prof. Yoshinori Tokura received the Honda Memorial Award
The Honda Memorial Fundation
Dr. Yoshinori Tokura elected member of the Royal Swedish Academy of Sciences
The Royal Swedish Academy of Science
The Royal Swedish Academy of Science | Press release: