Results 51 to 60 of about 287,081 (291)

CP_N Solitons in Quantum Hall Systems

open access: yes, 2001
We will present here an elementary pedagogical introduction to $CP_N$ solitons in quantum Hall systems. We begin with a brief introduction to both $CP_N$ models and to quantum Hall (QH) physics.
Rajaraman, R.
core   +1 more source

Classification of atomic-scale multipoles under crystallographic point groups and application to linear response tensors [PDF]

open access: yes, 2018
Four types of atomic-scale multipoles, electric, magnetic, magnetic toroidal, and electric toroidal multipoles, give a complete set to describe arbitrary degrees of freedom for coupled charge, spin, and orbital of electrons.
Hayami, Satoru   +3 more
core   +2 more sources

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

Absence of diode effect in chiral type-I superconductor NbGe2

open access: yesCommunications Physics
Symmetry elegantly governs the fundamental properties and derived functionalities of condensed matter. For instance, realizing the superconducting diode effect (SDE) demands breaking space-inversion and time-reversal symmetries simultaneously.
Dong Li   +23 more
doaj   +1 more source

A route for a strong increase of critical current in nanostrained iron-based superconductors

open access: yesNature Communications, 2016
Simultaneous increase of critical temperature and critical current in superconductors is desirable for application purpose, but very difficult to realize. Here, Ozaki et al. report a simultaneous enhancement of Tc and Jc in FeSe0.5Te0.5films with cascade
Toshinori Ozaki   +7 more
doaj   +1 more source

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

open access: yesAdvanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu   +9 more
wiley   +1 more source

Infinite-layer nickelates as Ni-e g Hund’s metals

open access: yesnpj Quantum Materials, 2023
The recent and exciting discovery of superconductivity in the hole-doped infinite-layer nickelate Nd1−δ Sr δ NiO2 draws strong attention to correlated quantum materials.
Byungkyun Kang   +6 more
doaj   +1 more source

Understanding Lorentz violation with Rashba interaction

open access: yes, 2012
Rashba spin orbit interaction is a well studied effect in condensed matter physics and has important applications in spintronics. The Standard Model Extension (SME) includes a CPT-even term with the coefficient H_{\mu \nu} which leads to the Rashba ...
Bluhm R.   +2 more
core   +1 more source

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

Quarter- and half-filled quantum Hall states and their topological orders revealed by daughter states in bilayer graphene

open access: yesNature Communications
Even-denominator fractional quantum Hall states are promising candidates for fault-tolerant quantum computing due to their underlying non-Abelian topological order. However, the topological order of these states remains hotly debated.
Ravi Kumar   +10 more
doaj   +1 more source

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