[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most ancient clastic carbonate slope deposits fit the submarine fan systems better. Calciclastic submarine fans are consequently rarely described and are poorly understood. Subsequently, very little is known especially in mud-dominated calciclastic submarine fan systems. Presented in this study are a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) that reveals a >250 m thick calciturbidite complex deposited in a calciclastic submarine fan setting. Seven facies are recognised from core and thin section characterisation and are grouped into three carbonate turbidite sequences. They include: 1) Calciturbidites, comprising mostly of highto low-density, wavy-laminated bioclast-rich facies; 2) low-density densite mudstones which are characterised by planar laminated and unlaminated muddominated facies; and 3) Calcidebrites which are muddy or hyper-concentrated debrisflow deposits occurring as poorly-sorted, chaotic, mud-supported floatstones. These

Phd by thesis

Journal of Physics Condensed Matter: Preface

IN view of the interest attaching to the vaporisation and diffusion of solids, the following observations may be worthy of record.

The Diffusion of Solids

Current-induced effective magnetic fields can provide efficient ways of electrically manipulating the magnetization of ultrathin magnetic heterostructures. Two effects, known as the Rashba spin orbit field and the spin Hall spin torque, have been reported to be responsible for the generation of the effective field. However, a quantitative understanding of the effective field, including its direction with respect to the current flow, is lacking. Here we describe vector measurements of the current-induced effective field in Ta|CoFeB|MgO heterostructrures. The effective field exhibits a significant dependence on the Ta and CoFeB layer thicknesses. In particular, a 1 nm thickness variation of the Ta layer can change the magnitude of the effective field by nearly two orders of magnitude. Moreover, its sign changes when the Ta layer thickness is reduced, indicating that there are two competing effects contributing to it. Our results illustrate that the presence of atomically thin metals can profoundly change the landscape for controlling magnetic moments in magnetic heterostructures electrically.

▲Current-induced effective field vector in Ta│CoFeB│MgO

In this work, we report preparation and characterization of NbNx thin films deposited using a reactive dc magnetron sputtering process at ambient temperature (without any intentional substrate heating). We found that formation of a stoichiometric NbN film is closely related to the response of a Nb target under reactive nitrogen environment. Although appearance of NbN phase is visible within the metallic state of Nb target, fully stoichiometric NbN phase can be obtained at the onset of target poisoning state.

Ambient temperature growth and characterization of stoichiometric NbN thin films

Depth selective local coordination in CoFeB thin films probed by XAFS and ToF-SIMS

Interfacial electronic structure modulated magnetic properties in Ta/CoFeB/Ta multilayers

Steel industry generate various kind of industrial waste, by-product after extracting final product as steel, depends on different types of ore refining methods. This research aims to identify experimentally, sustainable building material solution from waste to ingest in construction field centered on previous effort and literatures. EAF (Electric arc furnace) slag, a kind ofwaste material has an excellent potential to replace the natural coarse aggregate in concrete. The evaluation of the physical, chemical & microstructure properties of EAF slag as aggregate shows reasonably enhanced results. The M-50 grade of concrete was designed with various EAF slag replaced (0, 25, 50, 72, 100%) in place of natural coarse aggregate. It is observed thatfresh and hardened concretewith 50% EAF slag replacement exhibits outstanding performance over conventional concrete.

Mukul Gupta

Papers

Ambient temperature growth and characterization of stoichiometric NbN thin films

Depth selective local coordination in CoFeB thin films probed by XAFS and ToF-SIMS

Interfacial electronic structure modulated magnetic properties in Ta/CoFeB/Ta multilayers

Experimental Study on Steel Industry Waste as Aggregate in Concrete for a Sustainable Development

Investigation of Interfacial and Interdiffusion Study of Ti2N MXene Phase from TiN/Ti multilayers