Switchable long-distance propagation of chiral magnonic edge states.

The coherent spin waves, magnons, can propagate without accompanying charge transports and Joule heat dissipation. Room-temperature and long-distance spin waves propagating within nanoscale spin channels are considered promising for integrated magnonic applications, but experimentally challenging. Here we report that long-distance propagation of chiral magnonic edge states can be achieved at room temperature in manganite thin films with long, antiferromagnetically coupled spin spirals (millimetre length) and low magnetic Gilbert damping (~3.

Lightning the Spin: Harnessing the Potential of 2D Magnets in Opto-Spintronics.

Since the emergence of 2D magnets in 2017, the diversity of these materials has greatly expanded. Their 2D nature (atomic-scale thickness) endows these magnets with strong magnetic anisotropy, layer-dependent and switchable magnetic order, and quantum-confined quasiparticles, which distinguish them from conventional 3D magnetic materials. Moreover, the 2D geometry facilitates light incidence for opto-spintronic applications and potential on-chip integration.

Clinical profile and treatment outcomes of patients with rheumatoid arthritis at a tertiary care hospital of Pakistan.

Objective: To examine the clinical and laboratory features and to measure treatment outcomes after using different disease-modifying antirheumatic drugs in patients of rheumatoid arthritis.

Methods: The observational study was conducted at the Rheumatology Unit of Federal Government Polyclinic Hospital, Islamabad, Pakistan,from March 15, 2014,to September 14, 2015, and comprised rheumatoid arthritis patients of either gender diagnosed according to the American College of Rheumatology criteria.Disease activity score-28 and a thorough examination of the joints were employed to assess disease activity.

Inhomogeneous-strain-induced magnetic vortex cluster in one-dimensional manganite wire.

Mixed-valance manganites with strong electron correlation exhibit strong potential for spintronics, where emergent magnetic behaviors, such as propagation of high-frequency spin waves and giant topological Hall Effects can be driven by their mesoscale spin textures. Here, we create magnetic vortex clusters with flux closure spin configurations in single-crystal LaSrMnO wire. A distinctive transformation from out-of-plane domains to a vortex state is directly visualized using magnetic force microscopy at 4 K in wires when the width is below 1.

Controllable Ferroelastic Switching in Epitaxial Self-Assembled Aurivillius Nanobricks.

Layered perovskites with Aurivillius phase have drawn tremendous attention recently, owing to their high ferroelectric Curie temperatures, large spontaneous polarization, and fatigue-free and environment-friendly characteristics. BiWO is one of the simplest members in the Aurivillius family with superior ferroelastic and photo-electrochemical behaviors. The self-assembly fabrication of its nanoarchitectures and strategic modulation of their ferroelastic switching are crucial toward highly efficient nanoscale applications.

Dengue knowledge and its management practices among physicians of major cities of Pakistan.

Objective: To assess knowledge and practices related to dengue management among physicians.

Methods: The cross-sectional study was conducted at hospitals in Islamabad, Lahore, Faisalabad, Peshawar, Quetta and Karachi between June and December 2012Physicians from public and private sectors filled a self-administered questionnaire about dengue knowledge and its management practices. A maximum score of 100 was assigned to the knowledge portion.