Complex magnetic properties associated with competing local and itinerant magnetism in [Formula: see text].

Ternary intermetallic compound [Formula: see text] has been synthesized in single phase and characterized by x-ray diffraction, scanning electron microscopy with energy dispersive x-ray spectroscopy (SEM-EDX) analysis, magnetization, heat capacity, neutron diffraction and muon spin rotation/relaxation ([Formula: see text]SR) measurements. The polycrystalline compound was synthesized in single phase by introducing necessary vacancies in Co/Si sites. Magnetic, heat capacity, and zero-field neutron diffraction studies reveal that the system undergoes magnetic transition below [Formula: see text]4 K.

Studies on magnetocaloric effect of TbNiSi compound.

A comparative study has been carried out on the magnetocaloric properties of as-cast and annealed TbNiSi intermetallic compound. While the as-cast material exhibits ferromagnetic cluster-glass behaviour below 9.9 K coexisting with antiferromagnetic (AFM) interaction, the annealed system shows AFM ordering below 13.

The Untapped Opportunity and Challenge of Immunometabolism: A New Paradigm for Drug Discovery.

Here, we explore the manipulation of immune cell metabolism as a strategy in target discovery and drug development for immune-mediated diseases. Comparing exploitation of metabolic pathways to kill tumor cells for cancer treatment with the reprogramming of immune cells to treat autoimmune diseases highlights differences that confer several advantages to the latter (including a more favorable therapeutic index and greater target stability). We discuss technological capabilities and gaps, including the challenge of relating in vitro observations to in vivo biology.

Physical properties of RIr (R = Gd, Tb, Ho) compounds with coexisting polymorphic phases.

The binary compounds GdIr, TbIr and HoIr are synthesized successfully and found to form with macroscopic co-existence of two polymorphic phases: AuBe (C15b) and AuCu-type. The dc magnetization and heat capacity studies confirm that the C15b phase orders ferromagnetically, whereas the AuCu phase remains paramagnetic down to 2 K. The frequency dependent ac-susceptibility data, time dependent magnetic relaxation behavior and magnetic memory effect studies suggest that TbIr and HoIr are cannonical spin-glass systems, but no glassy feature could be found in GdIr.

Effect of Si substitution in ferromagnetic PrFe: a magnetocaloric material with zero thermal expansion operative at high temperature.

This article deals with the magnetic and thermal expansion properties of Pr2Fe16Si. This compound has been well characterized from the structural point of view by analysing X-ray diffraction (XRD) patterns. The temperature dependent behaviour of magnetization (M) and the structural parameters (lattice parameters, unit cell volume) suggest that the compound undergoes a second order phase transition from a paramagnetic to a ferromagnetic state at TC = 390 K, driven by an increase in bond length between iron atoms at 6c sites.