Zobrazeno 1 - 10
of 85
pro vyhledávání: '"R. D. McDonald"'
Autor:
J. Y. Liu, J. Yu, J. L. Ning, H. M. Yi, L. Miao, L. J. Min, Y. F. Zhao, W. Ning, K. A. Lopez, Y. L. Zhu, T. Pillsbury, Y. B. Zhang, Y. Wang, J. Hu, H. B. Cao, B. C. Chakoumakos, F. Balakirev, F. Weickert, M. Jaime, Y. Lai, Kun Yang, J. W. Sun, N. Alem, V. Gopalan, C. Z. Chang, N. Samarth, C. X. Liu, R. D. McDonald, Z. Q. Mao
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
Valley dependent spin polarization called spin-valley locking appears in absence of magnetism but it is limited to rare examples of transition metal dichalcogenides. Here, the authors report evidence of spin-valley locking and stacked quantum Hall ef
Externí odkaz:
https://doaj.org/article/df6b593549454ae6ad5750988186ddbb
Autor:
B. J. Ramshaw, K. A. Modic, Arkady Shekhter, Yi Zhang, Eun-Ah Kim, Philip J. W. Moll, Maja D. Bachmann, M. K. Chan, J. B. Betts, F. Balakirev, A. Migliori, N. J. Ghimire, E. D. Bauer, F. Ronning, R. D. McDonald
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Weyl semimetals should exhibit unusual electronic behaviour but conditions where these effects dominate are difficult to achieve. Ramshaw et al. use high magnetic fields to drive TaAs into the quantum limit, finding evidence for the predicted chiral
Externí odkaz:
https://doaj.org/article/c1899f4908ea429a9cfd71271f51ae72
Autor:
Z. Zhu, R. D. McDonald, A. Shekhter, B. J. Ramshaw, K. A. Modic, F. F. Balakirev, N. Harrison
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
Abstract The excitonic insulator phase has long been predicted to form in proximity to a band gap opening in the underlying band structure. The character of the pairing is conjectured to crossover from weak (BCS-like) to strong coupling (BEC-like) as
Externí odkaz:
https://doaj.org/article/90bde4c22cf34d78a530c62735ec8ca6
Autor:
Y. Kasahara, Y. Takeuchi, R. H. Zadik, Y. Takabayashi, R. H. Colman, R. D. McDonald, M. J. Rosseinsky, K. Prassides, Y. Iwasa
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-6 (2017)
Alkali-doped fullerides are superconductors but the impact of dimensionality and electron correlation remains unclear. Here, Kasaharaet al. report an upper critical field about 90 T, suggesting cooperative interplay between molecular electronic struc
Externí odkaz:
https://doaj.org/article/34c7e7d279a94657b80d2a1c70769111
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
The identification of broken symmetry states in underdoped cuprate superconductors via quantum oscillation measurements remains inconclusive. Here, Chan et al. report the reconstructed Fermi surface of HgBa2CuO4+δ comprises only a single pocket indi
Externí odkaz:
https://doaj.org/article/8cfcafa973da42a48d54f60eaf6bfd87
The quasiparticle density of states in correlated and quantum-critical metals directly probes the effect of electronic correlations on the Fermi surface. Measurements of the nuclear spin-lattice relaxation rate provide one such experimental probe of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::497b0869d5ef29b04f7a5a72d628a138
Publikováno v:
New Journal of Physics, Vol 20, Iss 4, p 043019 (2018)
We have studied the electronic structure of electron-doped cuprate superconductors via measurements of high-field Shubnikov–de Haas oscillations in thin films. In optimally doped Pr _2− _x Ce _x CuO _4± _δ and La _2− _x Ce _x CuO _4± _δ , q
Externí odkaz:
https://doaj.org/article/2825465e7ff04a0f82bb22de086278ef
Autor:
Debdeep Jena, Brad Ramshaw, YongJin Cho, You Lai, I. Zimmermann, Scott A. Crooker, Laurel Winter, M. Lee, J. L. Doorn, Huili Grace Xing, Y. Ren, R. D. McDonald
Publikováno v:
Applied Physics Letters. 117:262105
Using high magnetic fields up to 60 T, we report magneto-transport and photoluminescence (PL) studies of a two-dimensional electron gas (2DEG) in a GaN/AlGaN heterojunction grown by molecular-beam epitaxy. Transport measurements demonstrate that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9080bfae02bf7b7aeb92294f1b410c3f
https://doi.org/10.1063/5.0033047
https://doi.org/10.1063/5.0033047
Autor:
F, Ronning, T, Helm, K R, Shirer, M D, Bachmann, L, Balicas, M K, Chan, B J, Ramshaw, R D, McDonald, F F, Balakirev, M, Jaime, E D, Bauer, P J W, Moll
Publikováno v:
Nature. 548(7667)
Electronic nematic materials are characterized by a lowered symmetry of the electronic system compared to the underlying lattice, in analogy to the directional alignment without translational order in nematic liquid crystals. Such nematic phases appe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::64c3ae954e6476ca657f3ba8a1333530
https://pubmed.ncbi.nlm.nih.gov/28783723
https://pubmed.ncbi.nlm.nih.gov/28783723
Autor:
Arkady Shekhter, Kimberly Modic, Philip J. W. Moll, Brad Ramshaw, R. D. McDonald, Mun Chan, Fedor Balakirev, Maja D. Bachmann, Eun-Ah Kim, Jonathan B. Betts, Yi Zhang, Eric D. Bauer, Albert Migliori, Filip Ronning, Nirmal Ghimire
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Nature Communications
Nature Communications
Weyl fermions are a recently discovered ingredient for correlated states of electronic matter. A key difficulty has been that real materials also contain non-Weyl quasiparticles, and disentangling the experimental signatures has proven challenging. H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66328251344750e5668245fbf245dd38