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Concomitant interfacial spin fractal transformation and exchange bias in a magnetic shape memory alloy

Small-angle neutron scattering is used to study the exchange bias effect in Mn50Ni40Sn10. The martensitic transformation is found to be responsible for the nanometer-scale spin clusters (SCs) inside the low-temperature ferromagnetic (FM) martensite phase. The magnetic field dependences of the SCs and FM domains exhibit an asymmetry that characterizes the exchange bias. We find that the surface geo

Neutron adiabaticity and its impact on data analysis, illustrated for polarized GISANS

The significance of neutron spin adiabaticity in the data analysis of polarized Grazing Incidence Small Angle Neutron Scattering (GISANS) is discussed, with the aim of minimizing the number of simulation parameters of complex magnetic models within the neutron scattering cross-section. We illustrate how an estimate of the neutron polarization direction and adiabaticity can be obtained by magnetic

Polarisation Development at the European Spallation Source

To meet the ever-increasing user demand, eleven of the fifteen European Spallation Source (ESS) instruments under construction aim to offer polarised neutrons for user experiments. They include an imaging instrument, a SANS instruments, two reflectometers, three diffractometers, and four spectrometers. In conjunction with in-kind contributions and instrumentation grants, the ESS Polarisation Proje

Reading the Riots : Precarity, Racial Injustice and Rights in the Novels of Alex Wheatle

In view of Stuart Hall’s challenge issued in the wake of the 1985 Broadwater Farm riots, this essay aims to locate issues of precarity, racial injustice and rights in Alex Wheatle’s East of Acre Lane (2001) and The Dirty South (2008). Set on council estates in urban areas of London in 1981 and the early 2000s, respectively, these two novels represent and respond to continual legacies of colonialis

We Are Anarchists : Essays on Anarchism, Pacifism, and the Indian Independence Movement, 1923–1953

M.P.T. Acharya (1887–1954) was a contemporary and critic of Mohandas Gandhi during the Indian Independence Movement. A lifetime of anticolonial struggle led him to embrace anarchism and he saw tremendous revolutionary potential the practice of nonviolent direct action. A transnational figure, Acharya engaged in anticolonial activism across India, Europe, the United States, and Russia. He was also

Lay Down Your Arms : Anti-Militarism, Anti-Imperialism, and the Global Radical Left in the 1930s

A collection of essays from a diverse group of writers originally published in the Dutch anti-militarist journal, "De Wapens Neder" (1935). Through their writing, these anarchist and socialist writers from Europe, Algeria, India, Japan, and the United States connected the struggles against fascism and imperialism in East Asia and Europe with anti-colonial struggles in India and Africa and the Afri

Networking the Globe : Culture, Technologies, and Globalization

Contemporary events have highlighted important connections between technology, globalization and cultural production. Information technologies in particular have impacted the global commodification of information and have led to the significant erosion of national boundaries – for example, through Internet forums and self-broadcasting. Access to these technologies has influenced local and global iden

From Evaluation to Valorising : Three Moments in the Making of Social Impact Value

Value creation is central to entrepreneurship. Within social entrepreneurship research, value is discussed in relation to impact assessment as either pertaining to the thing assessed or dependent on the assessor. T hese are two perspectives that are blind to the value creation effects of the impact assessment process itself. Following pragmatist developments in the sociology of valuation, the arti

Tetrazole-functionalized poly(oxindole biphenylene) ion-solvating membranes for alkaline water electrolysis

Poly(oxindole biphenylene) was functionalized with tetrazole pendants and evaluated as base material for alkaline ion-solvating membranes for water electrolysis. The poly(oxindole biphenylene) parent polymer was obtained by superacid catalyzed polyhydroxyalkylation and subsequently functionalized by cyanoalkylation. The cyanoalkyl groups were thereafter converted to tetrazole pendants by a click t

gm/Id Analysis of vertical nanowire III–V TFETs

Experimental data on analog performance of gate-all-around III-V vertical Tunnel Field-Effect Transistors (TFETs) and circuits are presented. The individual device shows a minimal subthreshold swing of 44 mV/dec and transconductance efficiency of 50 V−1 for current range of 9 nA/μm to 100 nA/μm and at a drain voltage of 100 mV. This TFET demonstrates translinearity between transconductance and dra