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  • Article | | open

    Non-equilibrium dynamics of cold atoms have recently attracted attention revealing unconventional phenomena. The authors report here the experimental observation of a non-equilibrium steady state in a hybrid trap composed of a magneto-optical trap and a moving optical lattice.

    • Kyeong Ock Chong
    • , Jung-Ryul Kim
    • , Jinuk Kim
    • , Seokchan Yoon
    • , Sungsam Kang
    •  & Kyungwon An
  • Article | | open

    Characterizing the non-equilibrium phase transition to a Bose-Einstein condensate is an open problem in condensed matter physics. The authors perform a detailed numerical characterization of this dynamical process, providing insights into the equilibration process after crossing the transition.

    • I.-K. Liu
    • , S. Donadello
    • , G. Lamporesi
    • , G. Ferrari
    • , S.-C. Gou
    • , F. Dalfovo
    •  & N. P. Proukakis
  • Article | | open

    Formation of stable coherent structures is a fundamental physical phenomenon that occurs in various systems. This paper presents dissipative soliton build-up in mode-locked fibre lasers and investigate spectral and temporal evolution observing nonlinear dynamics ahead of the formation of a stable dissipative soliton.

    • Junsong Peng
    • , Mariia Sorokina
    • , Srikanth Sugavanam
    • , Nikita Tarasov
    • , Dmitry V. Churkin
    • , Sergei K. Turitsyn
    •  & Heping Zeng
  • Article | | open

    A better understanding of heat-transfer mechanisms is essential to designing more efficient cooling systems for high-energy devices. Using a micron-sized hot-spot, the authors investigate the dynamics of the nucleation and growth of a single vapour bubble from the micro to nanoscale.

    • Mehrdad Mehrvand
    •  & Shawn A. Putnam
  • Article | | open

    Ultrasound-driven encapsulated microbubbles show great promise as convenient transport vehicles for local drug delivery. This manuscript reports the development of a theoretical framework validated by experiments for understanding the role of non-spherical oscillations in ultrasound-mediated release of a drug payload from targeted microbubbles.

    • Guillaume Lajoinie
    • , Ying Luan
    • , Erik Gelderblom
    • , Benjamin Dollet
    • , Frits Mastik
    • , Heleen Dewitte
    • , Ine Lentacker
    • , Nico de Jong
    •  & Michel Versluis
  • Article | | open

    Plasma Raman amplifiers have been proposed as a mean to increase laser intensity beyond what is currently possible with solid state devices. The paper presents a counterintuitive geometry for a Raman amplifier that allows to optimize the Raman amplification of a seed pulse in a plasma.

    • James D. Sadler
    • , Luís O. Silva
    • , Ricardo A. Fonseca
    • , Kevin Glize
    • , Muhammad F. Kasim
    • , Alex Savin
    • , Ramy Aboushelbaya
    • , Marko W. Mayr
    • , Benjamin Spiers
    • , Robin H. W. Wang
    • , Robert Bingham
    • , Raoul M. G. M. Trines
    •  & Peter A. Norreys
  • Article | | open

    Frequency combs correspond to optical spectra composed of a succession of equally spaced lines that can be used in numerous fields such as high-precision spectroscopy. The authors report a new way of converting frequency combs in the mid-infrared region, which has potential applications in molecular spectroscopy and gas sensing.

    • Alexandre Parriaux
    • , Kamal Hammani
    •  & Guy Millot
  • Article | | open

    Understanding the magnetic properties of molecules at the atomic level is a crucial aspect in the growing area of organic spintronics. This study brings further insight into the mechanisms of electron-spin interactions by investigating an iron-based organic molecule deposited on gold substrates.

    • Carmen Rubio-Verdú
    • , Ane Sarasola
    • , Deung-Jang Choi
    • , Zsolt Majzik
    • , René Ebeling
    • , M. Reyes Calvo
    • , Miguel M. Ugeda
    • , Aran Garcia-Lekue
    • , Daniel Sánchez-Portal
    •  & Jose Ignacio Pascual
  • Article | | open

    In order to develop the next generation of semiconductor devices it is important to better understand the fundamental physics of materials other than silicon. The authors develop a theoretical approach to describe the charge transport properties of polymer-based semiconductors by focusing on features related to their crystallographic properties.

    • M. Statz
    • , D. Venkateshvaran
    • , X. Jiao
    • , S. Schott
    • , C. R. McNeill
    • , D. Emin
    • , H. Sirringhaus
    •  & R. Di Pietro
  • Article | | open

    Photoemission from nanostructures has raised considerable interest in recent years. The authors propose a low-budget scheme for multiphoton photemission with a continuous-wave laser that may inspire design of accessible nanoscale coherent electron sources.

    • Murat Sivis
    • , Nicolas Pazos-Perez
    • , Renwen Yu
    • , Ramon Alvarez-Puebla
    • , F. Javier García de Abajo
    •  & Claus Ropers
  • Article | | open

    Since the Renaissance, the Reiner Gamma formation was identified as a peculiar lunar feature. By combining magnetic field topology based on satellite observations with a full-kinetic plasma model, the authors successfully reproduced the shape of the surface albedo pattern beneath the magnetic anomaly.

    • Jan Deca
    • , Andrey Divin
    • , Charles Lue
    • , Tara Ahmadi
    •  & Mihály Horányi
  • Article | | open

    The study provides new insight into the light-matter interactions of organic based perovskites. The authors do so by investigating the hybrid perovskite methylammonium lead iodide, which is considered a benchmark material for solar cells with high power conversion efficiency.

    • Petr A. Obraztsov
    • , Dmitry Lyashenko
    • , Pavel A. Chizhov
    • , Kuniaki Konishi
    • , Natsuki Nemoto
    • , Makoto Kuwata-Gonokami
    • , Eric Welch
    • , Alexander N. Obraztsov
    •  & Alex Zakhidov
  • Article | | open

    Dimension is an important resource in quantum information theory. By exploiting the weak measurement technique, the paper presents a three-observer dimension witness protocol which can be applied, among other protocols, in semi device-independent quantum information theory.

    • Hong-Wei Li
    • , Yong-Sheng Zhang
    • , Xue-Bi An
    • , Zheng-Fu Han
    •  & Guang-Can Guo
  • Article | | open

    A first-principles description of electronic states in cuprate high-temperature superconductors has remained a longstanding challenge in the field. The authors show how the equilibrium crystal structure as well as the key ground-state electronic and magnetic properties of lanthanum cuprate superconductor as an exemplar correlated material can be obtained accurately by applying an advanced functional within the framework of the density functional theory.

    • James W. Furness
    • , Yubo Zhang
    • , Christopher Lane
    • , Ioana Gianina Buda
    • , Bernardo Barbiellini
    • , Robert S. Markiewicz
    • , Arun Bansil
    •  & Jianwei Sun
  • Article | | open

    The paper reports a theoretical investigation of the paramagnetic states of monolayer FeSe. The authors use first-principles spin-spiral calculations to show that spin fluctuations around the checkerboard states explain the paradox between angle-resolved photoemission experiments and density-functional theory.

    • T. Shishidou
    • , D. F. Agterberg
    •  & M. Weinert
  • Article | | open

    Intermediate band photovoltaics have the potential to increase traditional solar cell efficiencies by placing an intermediate band energy level between the valence and conduction bands, but they suffer from short carrier lifetimes because of Shockley-Read Hall recombination. The Quantum Ratchet device, whose concept was proposed theoretically as a way to increase the intermediate band life time, is realised here with a semiconductor nanostructure.

    • Anthony Vaquero-Stainer
    • , Megumi Yoshida
    • , Nicholas P. Hylton
    • , Andreas Pusch
    • , Oliver Curtin
    • , Mark Frogley
    • , Thomas Wilson
    • , Edmund Clarke
    • , Kenneth Kennedy
    • , Nicholas J. Ekins-Daukes
    • , Ortwin Hess
    •  & Chris C. Phillips
  • Article | | open

    Phase change alloys are used as components for optical data storage like DVD and Blue-Ray disks but many of their conductive properties are only known phenomenologically. This paper reports detailed band structure mapping of the prototype alloy GST-225 using photoemission spectroscopy, and the observation of a Dirac-like surface state above the Fermi level.

    • J. Kellner
    • , G. Bihlmayer
    • , M. Liebmann
    • , S. Otto
    • , C. Pauly
    • , J. E. Boschker
    • , V. Bragaglia
    • , S. Cecchi
    • , R. N. Wang
    • , V. L. Deringer
    • , P. Küppers
    • , P. Bhaskar
    • , E. Golias
    • , J. Sánchez-Barriga
    • , R. Dronskowski
    • , T. Fauster
    • , O. Rader
    • , R. Calarco
    •  & M. Morgenstern
  • Article | | open

    Multifractality is ubiquitous in classical systems but rare in quantum ones. Here the authors present observations demonstrating that universal conductance fluctuations in high-mobility single-layer graphene field-effect transistors are multifractal and may arise from Anderson-localization.

    • Kazi Rafsanjani Amin
    • , Samriddhi Sankar Ray
    • , Nairita Pal
    • , Rahul Pandit
    •  & Aveek Bid
  • Editorial | | open

    Welcome to the inaugural edition of Communications Physics. Our ambition is to provide a venue for physicists, regardless of their specialised topic, to publish and access high-quality research that stimulates new thinking in the field.

  • Article | | open

    Topological insulators insulate in the bulk but exhibit conducting edge states. The study introduces a colloidal analogue of topological insulators and experimentally demonstrates the occurrence of edge states that allow for the transport of colloids along both the edges and the corners of the underlying magnetic lattice.

    • Johannes Loehr
    • , Daniel de las Heras
    • , Adam Jarosz
    • , Maciej Urbaniak
    • , Feliks Stobiecki
    • , Andreea Tomita
    • , Rico Huhnstock
    • , Iris Koch
    • , Arno Ehresmann
    • , Dennis Holzinger
    •  & Thomas M. Fischer
  • Article | | open

    Magnetism plays a key role in data storage devices. This paper reports on the experimental observation of spin-orbit torque-driven oscillatory switching due to field-like torque and finds that the magnetization can be switched back through using appropriate pulse duration.

    • Jong Min Lee
    • , Jae Hyun Kwon
    • , Rajagopalan Ramaswamy
    • , Jungbum Yoon
    • , Jaesung Son
    • , Xuepeng Qiu
    • , Rahul Mishra
    • , Shalabh Srivastava
    • , Kaiming Cai
    •  & Hyunsoo Yang