Electronic Raman scattering in the 2D antiferromagnet NiPS.

Correlated-electron systems have long been an important platform for various interesting phenomena and fundamental questions in condensed matter physics. As a pivotal process in these systems, transitions have been suggested as a key factor toward realizing optical spin control in two-dimensional (2D) magnets. However, it remains unclear how excitations behave in quasi-2D systems with strong electronic correlation and spin-charge coupling.

Spin-induced linear polarization of photoluminescence in antiferromagnetic van der Waals crystals.

Antiferromagnets are promising components for spintronics due to their terahertz resonance, multilevel states and absence of stray fields. However, the zero net magnetic moment of antiferromagnets makes the detection of the antiferromagnetic order and the investigation of fundamental spin properties notoriously difficult. Here, we report an optical detection of Néel vector orientation through an ultra-sharp photoluminescence in the van der Waals antiferromagnet NiPS from bulk to atomically thin flakes.

Vascular endothelial growth factor in bipolar depression: A potential biomarker for diagnosis and treatment outcome prediction.

Background: Vascular Endothelial Growth Factor (VEGF) has been implicated in the neurotrophic model of depression. We explored the potential role of VEGF in the pathophysiology of bipolar depression and potential utility as a diagnostic or outcome predictive biomarker.

Methods: In a double-blind study, treatment-resistant bipolar depressed patients received Escitalopram and were randomized to receive add-on Celecoxib (26 participants) or Placebo (21 participants).

Efficacy of a reverse-phase polymer as a submucosal injection solution for EMR: a comparative study (with video).

Introduction: Reverse-phase polymers undergo a temperature-dependent liquid-to-gel transition that may provide a more durable cushion for EMR and could yield improvements in safety and efficacy.

Objective: Our purpose was to assess the efficacy of poloxamer solution PS137-25 as a submucosal injection.

Design: Comparative study among 3 different solutions for EMR using ex vivo and in vivo porcine models.