Results 101 to 110 of about 149,678 (250)

Universal Stripe Symmetry of Short‐Range Charge Density Waves in Cuprate Superconductors

open access: yesAdvanced Materials, Volume 36, Issue 3, January 18, 2024.
The symmetry of charge‐density‐wave (CDW) in copper‐oxide superconductors is an important clue for the longstanding conundrum of high‐temperature superconductivity. This novel RIXS mapping study corroborates unidirectional stripe as a fundamental symmetry of CDWs across cuprate materials.
Jaewon Choi   +14 more
wiley   +1 more source

4f-spin dynamics in La(2-x-y)Sr(x)Nd(y)CuO(4) [PDF]

open access: yes, 1999
We have performed inelastic magnetic neutron scattering experiments on La(2-x-y)Sr(x)Nd(y)CuO(4) in order to study the Nd 4f-spin dynamics at low energies. In all samples we find at high temperatures a quasielastic line (Lorentzian) with a line width which decreases on lowering the temperature.
arxiv   +1 more source

mQfit, a new program for analyzing quasi-elastic neutron scattering data

open access: yesEPJ Web of Conferences, 2015
Analysis of Quasi-elastic Neutron Scattering (QENS) data of complex systems such as biological or soft matter samples in a comprehensive and explicit way often requires great efforts.
Martinez Nicolas   +2 more
doaj   +1 more source

High-energy limit of neutrino quasielastic cross section [PDF]

open access: yesActa Phys. Pol. B37 (2006) 377, 2005
It's a common knowledge that the quasielastic neutrino-neutron and antineutrino-proton cross sections tend to the same constant as (anti)neutrino energy becomes high. In this paper we calculate the exact expression of the limit in terms of the parameters describing quasielastic scattering.
arxiv  

Glass Transition in the Polaron Dynamics of CMR Manganites

open access: yes, 2002
Neutron scattering measurements on a bilayer manganite near optimal doping show that the short-range polarons correlations are completely dynamic at high T, but then freeze upon cooling to a temperature T* 310 K.
A. J. Millis   +30 more
core   +1 more source

Magnetic Excitations in the Ground State of $\mathrm{Yb_2Ti_2O_7}$ [PDF]

open access: yes, 2017
We report an extensive study on the zero field ground state of a powder sample of the pyrochlore $\mathrm{Yb_2Ti_2O_7}$. A sharp heat capacity anomaly that labels a low temperature phase transition in this material is observed at 280 mK.
Aldus, Robert J.   +9 more
core   +2 more sources

Dynamic rotor mode in antiferromagnetic nanoparticles [PDF]

open access: yes, 2015
We present experimental, numerical, and theoretical evidence for a new mode of antiferromagnetic dynamics in nanoparticles. Elastic neutron scattering experiments on 8 nm particles of hematite display a loss of diffraction intensity with temperature, the
Ancona, S. N.   +8 more
core   +3 more sources

Structure and relaxation processes of an anisotropic molecular fluid confined into 1D nanochannels

open access: yes, 2006
Structural order parameters of a smectic liquid crystal confined into the columnar form of porous silicon are studied using neutron scattering and optical spectroscopic techniques.
Alain, Moréac   +5 more
core   +3 more sources

Measurements of the neutron electric to magnetic form factor ratio G_(En)/G_(Mn) via the ^2H(e, e'n)^1H reaction to Q^2 = 1.45 (GeV/c)^2 [PDF]

open access: yes, 2006
We report values for the neutron electric tomagnetic form factor ratio,G_(En)/G_(Mn), deduced frommeasurements of the neutron’s recoil polarization in the quasielastic ^2H(e, e'n)^1H reaction, at three Q^2 values of 0.45, 1.13, and 1.45 (GeV/c)^2.
Plaster, B.
core  

Microscopic structure and dynamics of glass forming Zr2Co melts and the impact of different late transition metals on the melt properties

open access: yesJournal of Non-Crystalline Solids: X, 2022
We studied the short-range order and the atomic dynamics of stable and undercooled binary Zr2Co alloy melts as well as their density and viscosity. The containerless processing technique of electrostatic levitation was used to achieve deep undercooling ...
M.D. Ruiz-Martín   +9 more
doaj  

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