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Condensed Matter, Volume 6, Issue 4

December 2021 - 19 articles

Cover Story: The bismuth sulfide class of superconductors is a testbed for investigating the effects of charge density wave instabilities, lattice modes leading to phonon softening, and spin–orbit interactions on the superconducting mechanism. In this work, the local atomic structure of the nonmagnetic layered superconductor Bi4O4S3 was investigated using neutron diffraction and pair density function analysis. Although on average, the crystal structure is well ordered, evidence for local, out-of-plane sulfur distortions is provided, which may act as a conduit for charge transfer from the SO4 blocks into the superconducting BiS2 planes. In contrast with LaO1-xFxBiS2, no sulfur distortions were detected in the planes, which indicates that charge density wave fluctuations are not supported in Bi4O4S3.View this paper
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Articles (19)

  • Article
  • Open Access
3 Citations
3,888 Views
14 Pages

Majorana Zero Modes in Ferromagnetic Wires without Spin-Orbit Coupling

  • Giorgos Livanas,
  • Nikolaos Vanas and
  • Georgios Varelogiannis

We present a novel controllable platform for engineering Majorana zero modes. The platform consists of a ferromagnetic metallic wire placed among conventional superconductors, which are in proximity to ferromagnetic insulators. We demonstrate that Ma...

  • Article
  • Open Access
17 Citations
3,942 Views
10 Pages

Study of Multi-Pixel Scintillator Detector Configurations for Measuring Polarized Gamma Radiation

  • Ana Marija Kožuljević,
  • Damir Bosnar,
  • Zdenka Kuncic,
  • Mihael Makek,
  • Siddharth Parashari and
  • Petar Žugec

When a positron annihilates, two gamma photons are created with orthogonal polarizations. It is possible to use coincidence measurements where both photons undergo Compton scattering to estimate their initial relative polarization orientation. This i...

  • Article
  • Open Access
4 Citations
3,610 Views
10 Pages

In superconducting films, the role of intrinsic disorder is typically to compete with superconductivity by fragmenting the global phase coherence and lowering the superfluid density. Nonetheless, when a transverse magnetic field is applied to the sys...

  • Review
  • Open Access
10 Citations
3,188 Views
9 Pages

Nanoscale phase separation (NPS), characterized by particular types of correlated disorders, plays an important role in the functionality of high-temperature superconductors (HTS). Our results show that multiscale heterogeneity is an essential ingred...

  • Article
  • Open Access
3 Citations
3,259 Views
15 Pages

Probing Electron Properties in ECR Plasmas Using X-ray Bremsstrahlung and Fluorescence Emission

  • Bharat Mishra,
  • Angelo Pidatella,
  • Alessio Galatà,
  • Sandor Biri,
  • Richard Rácz,
  • Eugenia Naselli,
  • Maria Mazzaglia,
  • Giuseppe Torrisi and
  • David Mascali

A quantitative analysis of X-ray emission from an electron cyclotron resonance (ECR) plasma was performed to probe the spatial properties of electrons having energy for effective ionisation. A series of measurements were taken by INFN-LNS and ATOMKI,...

  • Article
  • Open Access
6 Citations
4,011 Views
22 Pages

Connecting Complex Electronic Pattern Formation to Critical Exponents

  • Shuo Liu,
  • Erica W. Carlson and
  • Karin A. Dahmen

Scanning probes reveal complex, inhomogeneous patterns on the surface of many condensed matter systems. In some cases, the patterns form self-similar, fractal geometric clusters. In this paper, we advance the theory of criticality as it pertains to t...

  • Article
  • Open Access
4 Citations
5,745 Views
16 Pages

We investigate the transport properties of charge carriers in disordered organic semiconductors using a model that relates a mobility with charge carriers (not with small polarons) hopping by thermal activation. Considering Miller and Abrahams expres...

  • Article
  • Open Access
4 Citations
3,454 Views
9 Pages

Confocal Fluorescence Microscopy and Confocal Raman Microspectroscopy of X-ray Irradiated LiF Crystals

  • Francesca Bonfigli,
  • Sabina Botti,
  • Angelica Cecilia,
  • Rosa Maria Montereali,
  • Enrico Nichelatti,
  • Valentina Nigro,
  • Massimo Piccinini and
  • Maria Aurora Vincenti

Radiation-induced color centers locally produced in lithium fluoride (LiF) are successfully used for radiation detectors. LiF detectors for extreme ultraviolet radiation, soft and hard X-rays, based on photoluminescence from aggregate electronic defe...

  • Article
  • Open Access
12 Citations
4,511 Views
14 Pages

A Parameter Refinement Method for Ptychography Based on Deep Learning Concepts

  • Francesco Guzzi,
  • George Kourousias,
  • Alessandra Gianoncelli,
  • Fulvio Billè and
  • Sergio Carrato

X-ray ptychography is an advanced computational microscopy technique, which is delivering exceptionally detailed quantitative imaging of biological and nanotechnology specimens, which can be used for high-precision X-ray measurements. However, coarse...

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Condens. Matter - ISSN 2410-3896