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The phase diagram of $Pr_{1-x}Ca_xMnO_3$ is modified x $\le$ 0.3, which suggests a reevaluation of the phase diagram of other manganites in that doping region. Rather than an orbital ordered phase reaching up to high temperatures of…

Magnetars are neutron stars characterized by strong surface magnetic fields generally exceeding the quantum critical value of 44.1 TeraGauss. High-energy photons propagating in their magnetospheres can be attenuated by QED processes like…

High Energy Astrophysical Phenomena · Physics 2022-11-30 Kun Hu , Matthew G. Baring , Alice K. Harding , Zorawar Wadiasingh

The discovery of ambient-pressure nickelate high-temperature superconductivity provides a new platform for probing the underlying superconducting mechanisms. However, the thermodynamic metastability of Ruddlesden-Popper nickelates…

Superconductivity · Physics 2026-03-05 Wei Lv , Zihao Nie , Heng Wang , Haoliang Huang , Guangdi Zhou , Qikun Xue , Zhuoyu Chen

Entangled photon pairs are crucial resources for quantum information processing protocols. Via the process of spontaneous parametric down-conversion (SPDC), we can generate these photon pairs using bulk nonlinear crystals. Traditionally,…

Quantum Physics · Physics 2024-04-12 Zi-Qi Zeng , Shi-Xin You , Zi-Xiang Yang , Chenzhi Yuan , Chenglong You , Rui-Bo Jin

Photo-induced phase transitions (PIPTs) provide an ultrafast, energy-efficient way for precisely manipulating the topological properties of transition-metal ditellurides, and can be used to stabilize a topological phase in an otherwise…

Materials Science · Physics 2020-06-23 Bo Peng , Hao Zhang , Weiwen Chen , Zhi-Jun Qiu , Hezhu Shao , Heyuan Zhu , Bartomeu Monserrat , Desheng Fu , Hongming Weng

Titanium dioxide is one of the most widely investigated oxides. This is due to its broad range of applications, from catalysis to photocatalysis to photovoltaics. Despite this large interest, many of its bulk properties have been sparsely…

Materials Science · Physics 2010-03-12 L. Chiodo , J. M. García-Lastra , D. J. Mowbray , A. Iacomino , A. Rubio

In the present work we investigate the photocatalytic hydrogen production (water splitting) activity of different Pt loaded TiO2 nanotube layers. Therefore, we fabricate free standing membranes and fix them in four different configurations:…

Materials Science · Physics 2016-10-14 Gihoon Cha , Kiyoung Lee , JeongEun Yoo , Manuela S. Killian , Patrik Schmuki

Single crystals of SrFe2-xPtxAs2 (0 < x < 0.36) were grown using the self flux solution method and characterized using x-ray crystallography, electrical transport, magnetic susceptibility, and specific heat measurements. The…

Superconductivity · Physics 2010-10-21 Kevin Kirshenbaum , Shanta R. Saha , Tyler Drye , Johnpierre Paglione

Gallium oxide (Ga2O3) can be crystallized in several polymorphs exhibiting different physical properties. In this work, polymorphic structures consisting of the cubic defective spinel (gamma) film on the top of the monoclinic (beta)…

Our series of articles is devoted to high-precision molecular dynamics simulation of mixed actinide-oxide (MOX) fuel in the rigid ions approximation using high-performance graphics processors (GPU). In this article we assess the 10 most…

Materials Science · Physics 2011-07-06 S. I. Potashnikov , A. S. Boyarchenkov , K. A. Nekrasov , A. Ya. Kupryazhkin

Photochemistry has the potential to substantially impact the atmospheric composition of exoplanets with consequences on the radiative transfer, thermal structure and dynamics of the atmospheres, particularly in UV-rich stellar environments.…

Earth and Planetary Astrophysics · Physics 2022-02-17 Benjamin Fleury , Murthy S. Gudipati , Bryana L. Henderson , Mark Swain

Titanium dioxide (TiO$_2$) plays a central role in the study of artificial photosynthesis, owing to its ability to perform photocatalytic water splitting. Despite over four decades of intense research efforts in this area, there is still…

Materials Science · Physics 2016-07-28 Christopher E. Patrick , Feliciano Giustino

Efficient artificial photosynthesis systems are currently realized as catalyst- and surfacefunctionalized photovoltaic tandem- and triple-junction devices, enabling photoelectrochemical (PEC) water oxidation while simultaneously recycling…

Atomic and electronic structures of TiO_2(110) surface with possible adsorptional, substitutional and interstitial Au or Pt elemental impurities at full and one-sixth monolayer concentrations were investigated by density functional theory…

Strongly Correlated Electrons · Physics 2012-11-19 Ersen Mete , Oğuz Gülseren , Şinasi Ellialtıoğlu

Metal-insulator transitions (MIT) occurring in non-adiabatic conditions can evolve through high-energy intermediate states that are difficult to observe and control via static methods. By monitoring the out-of-equilibrium structural…

Strongly Correlated Electrons · Physics 2024-07-19 B. Truc , P. Usai , F. Pennacchio , G. Berruto , R. Claude , I. Madan , V. Sala , T. LaGrange , G. M. Vanacore , S. Benhabib , F. Carbone

A range of high quality Ga1-xMnxN layers have been grown by molecular beam epitaxy with manganese concentration 0.2 < x < 10%, having the x value tuned by changing the growth temperature (Tg) between 700 and 590 {\deg}C, respectively. We…

A description of the martensitic transformations between the $\alpha$, $\beta$ and $\omega$ phases of titanium that includes nucleation and growth requires an accurate classical potential. Optimization of the parameters of a modified…

Materials Science · Physics 2009-11-13 R. G. Hennig , T. J. Lenosky , D. R. Trinkle , S. P. Rudin , J. W. Wilkins

Three distinct samples were proceed through synthesis utilizing the hydrothermal method to develop tin dioxide (SnO2) nanoparticles. Consistency in all other parameters was ensured by maintaining a constant temperature and time throughout…

Materials Science · Physics 2025-12-16 Komal Singh , Jyoti Sindkar , Mrunal Ramdasi , Vrishali Jadhav , Rohidas B. Kale

We report an experimental study of peak and phase-space density of a two-stage magneto-optical trap (MOT) of 6-Li atoms, which exploits the narrower $2S_{1/2}\rightarrow 3P_{3/2}$ ultra-violet (UV) transition at 323 nm following trapping…

Atomic Physics · Physics 2015-06-22 Jimmy Sebastian , Christian Gross , Ke Li , Huat Chai Jaren Gan , Wenhui Li , Kai Dieckmann

Photocatalytic and photovoltaic activity depends on the optimal alignment of electronic levels at the molecule/semiconductor interface. Establishing level alignment experimentally is complicated by the uncertain chemical identity of the…

Materials Science · Physics 2013-08-27 Annapaola Migani , Duncan J. Mowbray , Amilcare Iacomino , Jin Zhao , Hrvoje Petek , Angel Rubio