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Displaying 2626 - 2650 of 3362

Collision Properties of Ultracold 133 Cs Atoms

September 1, 2000
Author(s)
P J. Leo, Carl J. Williams, Paul S. Julienne
We present a theoretical analysis of numerous magnetically tunable Feshbach resonances measured by Vladan et al. at fields of up to 25 m T. This analysis provides the most accurate characterization of the collisional properties of ground state Cs atoms

Diagnostics of 'Colossal' Magnetoresistance Manganate Films by Raman Spectroscopy

November 1, 1998
Author(s)
V B. Podobedov, D B. Romero, A Weber, Joseph P. Rice, R Schreekala, M Rajeswari, R Ramesh, T Venkatesan, H D. Drew
Polarized Raman scattering by phonons is used to characterize thin films prepared by laser ablation of a lanthanum manganese oxide target. It was found that in the temperature range from 6 K to 300 K phonon spectra of La 0.7Ca 0.3MnO 3 films exhibit

Magnetoresistance Values Exceeding 21 Percent in Symmetric Spin Valves

January 1, 1995
Author(s)
William F. Egelhoff Jr., T Ha, R Misra, Y Kadmon, J Nir, Cedric J. Powell, Mark D. Stiles, Robert McMichael, C Lin, J Sivertsen, J Judy, K Takano, A Berkowitz, T Anthony, J Brug
We report values of the giant magnetoresistance (GMR) effect exceeding 21% in symmetric spin valves, the highest values ever reported for such structures. The key elements in this achievement are the use of a Co/Cu/Co/Cu/Co multilayer in which the center

Electron Scattering from NO and N 2 O Below 10 eV

December 1, 1974
Author(s)
A Zecca, I Lazzizzera, Morris Krauss, C Kuyatt
Total electron scattering cross sections for NO and N 2O in the energy range 0-10 eV were obtained from exponential attenuation in a straight-line collision chamber without a confining magnetic field. Good agreement is obtained with previous measurements

Tuning Incommensurate Charge Order in Ba1-xSrxAl4 and Ba1-yEuyAl4

July 20, 2025
Author(s)
Prathum Saraf, Eleanor M. Clements, Danila Sokratov, Shanta Saha, Peter Zavalij, Thomas Heitmann, Jeffrey Lynn, Camille Bernal-Chobin, Dipanjan Chaudhuri, Caitlin Kengle, Yue Su, Simon Bettler, Nathan Manning, Peter Abbamonte, Sananda Biswas, Roser Valenti, Johnpierre Paglione
The BaAl4-type structure family is home to a vast landscape of interesting and exotic properties, with descendant crystal structures hosting a variety of electronic ground states including magnetic, superconducting and strongly correlated electron

Robust Nodal Behavior in the Thermal Conductivity of Superconducting UTe2

April 25, 2025
Author(s)
Ian Hayes, Tristin E. Metz, Corey Frank, Shanta R. Saha, Nicholas Butch, Vivek Mishra, P. Hirschfeld, Johnpierre Paglione
The superconducting state of the heavy-fermion metal UTe2 has attracted considerable interest because of evidence of spin-triplet Cooper pairing and nontrivial topology. Progress on these questions requires identifying the presence or absence of nodes in

Traceability and Uncertainty in NMR and MRI measurements

January 1, 2024
Author(s)
Stephen Russek, Karl Stupic, Kathryn Keenan
Magnetic resonance imaging (MRI) is increasingly used for quantitative in-vivo measurements, including biomarkers based on relaxation times, diffusion, flow, temperature, local concentration of neurotransmitters and metabolites, tissue conductivity

Quantum-Critical Scale Invariance in Transition Metal Alloy

October 14, 2020
Author(s)
Yasuyuki Nakajima, Tristin Metz, Christoper Eckberg, Kevin Kirshenbaum, Alex Hughes, Renxiong Wang, Limin Wang, Shanta Saha
Quantum-mechanical fluctuations between competing phases at Τ = 0 induce exotic finite-temperature collective excitations that are not described by the standard Landau Fermi liquid framework [1-4]. These excitations exhibit anomalous temperature
Displaying 2626 - 2650 of 3362
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