Zobrazeno 1 - 10
of 1 435
pro vyhledávání: '"Pickett, W"'
Publikováno v:
J. Phys. Materials 5, 024008 (2022)
The status of nickelate superconductors in relation to cuprate high temperature superconductors is one of the concepts being discussed in high temperature superconductivity in correlated transition metal oxides. New additions to the class of infinite
Externí odkaz:
http://arxiv.org/abs/2112.14010
Publikováno v:
Phys. Rev. B 104, 054516 (2021)
First principles investigations of the high temperature superconducting system Ba$_2$CuO$_{3+\delta}$, recently discovered at $\delta\approx0.2$ at $T_c=70$ K, are applied to demonstrate the effects of oxygen ordering on the electronic and magnetic p
Externí odkaz:
http://arxiv.org/abs/2104.07258
Publikováno v:
Phys. Rev. Research 2, 033197 (2020)
The infinite-layer structure nickelate Ba$_2$NiO$_2$(AgSe)$_2$ (BNOAS) with $d^8$ Ni ions and a peculiar susceptibility $\chi(T)$ is studied with correlated density functional methods. The overriding feature of the calculations is violation of Hund's
Externí odkaz:
http://arxiv.org/abs/2007.03185
Publikováno v:
Phys. Rev. Research 2, 033445 (2020)
The discovery that Nd$_{1-x}$Sr$_x$NiO$_2$, with the CaCuO$_2$ infinite-layer structure, superconducts up to 15 K around the hole-doping level $x$=0.2 raises the crucial question of its fundamental electronic and magnetic processes. The unexplained b
Externí odkaz:
http://arxiv.org/abs/2005.03234
Publikováno v:
Phys. Rev. B 101, 020503 (2020)
Atomic $4f$ states have been found to be essential players in the physical behavior of lanthanide compounds, at the Fermi level $E_F$ as in the proposed topological Kondo insulator SmB$_6$, or further away as in the magnetic superconductor system ${\
Externí odkaz:
http://arxiv.org/abs/1911.02999
Autor:
McIsaac, M.A., King, N., Steeves, V., Phillips, S.P., Vafaei, A., Michaelson, V., Davison, C., Pickett, W.
Publikováno v:
In Preventive Medicine April 2023 169
Publikováno v:
Phys. Rev. Materials 3, 021201 (2019)
Materials containing multiple topological characteristics become more exotic when combined with noncentrosymmetric crystal structures and unusual magnetic phases such as the compensated half-metal state, which is gapped in one spin direction and cond
Externí odkaz:
http://arxiv.org/abs/1812.05273
Publikováno v:
Phys. Rev. B 98, 035130 (2018)
We investigate the electronic structure and several properties, and topological character, of the cubic time-reversal invariant intermetallic compounds PbPd$_3$ and SnPd$_3$ using density functional theory based methods. These compounds have a disper
Externí odkaz:
http://arxiv.org/abs/1803.08172
Publikováno v:
Phyica C 549, 99 (2018)
The search for robust examples of the magnetic version of topological insulators, referred to as quantum anomalous Hall insulators or simply Chern insulators, so far lacks success. Our groups have explored two distinct possibilities based on multiorb
Externí odkaz:
http://arxiv.org/abs/1802.07411
Autor:
Kissikov, T., Sarkar, R., Lawson, M., Bush, B. T., Timmons, E. I., Tanatar, M. A., Prozorov, R., Bud'ko, S. L., Canfield, P. C., Fernandes, R. M., Goh, W. F., Pickett, W. E., Curro, N. J.
Publikováno v:
Phys. Rev. B 96, 241108 (2017)
The electric field gradient (EFG) tensor at the $^{75}$As site couples to the orbital occupations of the As p-orbitals and is a sensitive probe of local nematicity in BaFe$_2$As$_2$. We use nuclear magnetic resonance to measure the nuclear quadrupola
Externí odkaz:
http://arxiv.org/abs/1710.09547