Possible excitonic insulating phase in quantum confined Sb nanoflakes.
Sign Up to like & getrecommendations! Published in 2019 at "Nano letters"
DOI: 10.1021/acs.nanolett.9b01123
Abstract: In the 1960s, it was proposed that, in small indirect band gap materials, excitons can spontaneously form because the density of carriers is too low to screen the attractive Coulomb interaction between electrons and holes.… read more here.
Keywords: insulating phase; excitonic insulator; quantum confined;
Hallmarks of Hunds coupling in the Mott insulator Ca2RuO4
Sign Up to like & getrecommendations! Published in 2017 at "Nature Communications"
DOI: 10.1038/ncomms15176
Abstract: A paradigmatic case of multi-band Mott physics including spin-orbit and Hund's coupling is realized in Ca2RuO4. Progress in understanding the nature of this Mott insulating phase has been impeded by the lack of knowledge about… read more here.
Keywords: ca2ruo4; physics; insulating phase; hunds coupling ... See more keywords
Phase diagrams and multistep condensations of spin-1 bosonic gases in optical lattices
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-27503-0
Abstract: Motivated by recent experimental processes, we systemically investigate strongly correlated spin-1 ultracold bosons trapped in a three-dimensional optical lattice in the presence of an external magnetic field. Based on a recently developed bosonic dynamical mean-field… read more here.
Keywords: zeeman energy; phase; phase diagrams; diagrams multistep ... See more keywords
Gain- and Loss-Induced Topological Insulating Phase in a Non-Hermitian Electrical Circuit
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review Applied"
DOI: 10.1103/physrevapplied.13.014047
Abstract: Jun Cui3,*, Shuang Zhang2,* 1 International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, Institute of Microscale Optoelectronics (IMO), Shenzhen University, Shenzhen 518060, China 2 School of Physics and… read more here.
Keywords: phase non; insulating phase; topological insulating; gain loss ... See more keywords
Early-stage dynamics of metallic droplets embedded in the nanotextured Mott insulating phase of V2O3
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.075111
Abstract: Unveiling the physics that governs the intertwining between the nanoscale self-organization and the dynamics of insulator-to-metal transitions (\textit{IMT}) is key for controlling on demand the ultrafast switching in strongly correlated materials and nano-devices. A paradigmatic… read more here.
Keywords: insulating phase; mott insulating; early stage; phase ... See more keywords
Resistivity of the insulating phase approaching the two-dimensional metal-insulator transition: The effect of spin polarization
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.041301
Abstract: The resistivities of the dilute, strongly-interacting 2D electron systems in the insulating phase of a silicon MOSFET are the same for unpolarized electrons in the absence of magnetic field and for electrons that are fully… read more here.
Keywords: insulating phase; insulator transition; metal insulator;
Spatial coherence of the insulating phase in quasi-two-dimensional LaNiO 3 films
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.014105
Abstract: The quasi-two-dimensional nature of ${\mathrm{LaNiO}}_{3}$ (LNO) thin films on ${\mathrm{SrTiO}}_{3}$(001) (STO) and ${\mathrm{LaAlO}}_{3}$(001) (LAO) substrates is examined. Although both samples undergo a metal-insulator transition with decreasing thickness, the spatial distributions of the insulating phase within… read more here.
Keywords: phase; quasi two; two dimensional; cell volume ... See more keywords
Impact of thermal fluctuations on transport in antiferromagnetic semimetals
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.024409
Abstract: Recent demonstrations on manipulating antiferromagnetic (AF) order have triggered a growing interest in antiferromagnetic metal (AFM), and potential high-density spintronic applications demand further improvements in the anisotropic magnetoresistance (AMR). The antiferromagnetic semimetals (AFS) are newly… read more here.
Keywords: phase; order; antiferromagnetic semimetals; insulating phase ... See more keywords
Photonic Topological Insulating Phase Induced Solely by Gain and Loss.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.213902
Abstract: We reveal a one-dimensional topological insulating phase induced solely by gain and loss control in non-Hermitian optical lattices. The system comprises units of four uniformly coupled cavities, where the successive two have loss; the others… read more here.
Keywords: phase induced; gain loss; insulating phase; topological insulating ... See more keywords