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Displaying 2251 - 2275 of 3361

Nearly Ferromagnetic Spin-Triplet Superconductivity

August 18, 2019
Author(s)
Sheng N. Ran, Christoper Eckberg, Qing-Ping Ding, Yuji Furukawa, Tristin Metz, Shanta R. Saha, I Lin NMN Liu, Mark Zic, Hyunsoo Kim, Johnpierre N. Paglione, Nicholas Butch
One of the most interesting differences between spin triplet superconductors and the conventional spin singlet variety is the two-component triplet order parameter that allows spin up and down electrons to couple with different strength. Such nonunitary

Domain-wall motion and interfacial Dzyaloshinskii-Moriya interactions in Pt/Co/Ir(tIr)/Ta multilayers

March 7, 2019
Author(s)
Kowsar Shahbazi, Joo-Von Kim, Hans Nembach, Justin Shaw, Andreas Bischof, Marta Rossell, Vincent Jeudy, Thomas A. Moore, Christopher H. Marrows
The interfacial Dzyaloshinskii-Moriya interaction (DMI) is important for chiral domain walls (DWs) and for stabilizing magnetic skyrmions. We study the effects of introducing increasing thicknesses of Ir, from zero to 2 nm, into a Pt/Co/Ta multilayer

Electromagnetic Metrology on Concrete and Corrosion

June 1, 2011
Author(s)
Sung Kim, Jack T. Surek, James R. Baker-Jarvis
To go beyond current electromagnetic nondestructive evaluation (NDE) methods for reinforcing bar (rebar) corrosion we are exploring unique magnetic or electric spectral features and whether these might be prominent enough at the concrete cover depth to

High Resolution Tunnelling Spectroscopy of a Graphene Quartet

September 9, 2010
Author(s)
Alexander F. Otte, Young Kuk, Yike Hu, David Torrance, Phillip First, Walt A. de Heer, Hongki Min, Shaffique Adam, Mark D. Stiles, Allan H. MacDonald, Joseph A. Stroscio
Electrons in a single sheet of graphene behave quite differently from those in traditional two-dimensional electron systems. Like massless relativistic particles, they have linear dispersion and chiral eigenstates. Furthermore, two sets of electrons

Influence of Cr Growth on Exchange Coupling in Fe/Cr/Fe(100)

January 1, 1994
Author(s)
Daniel T. Pierce, Joseph A. Stroscio, John Unguris, Robert Celotta
Scanning electron microscopy with polarization-analysis (SEMPA) measurements of the dependence of the oscillations of the exchange coupling in Fe/Cr/Fe(100) structures on the Cr growth temperature are correlated with the thickness fluctuations in Cr films

Theory of Spin Polarized Secondary Electrons in Transition Metals

January 1, 1985
Author(s)
David R. Penn, S Apell
We show that in contrast to the secondary-electron intensity distribution, the spin polarization, P(E), yields useful information about the electron-electron interaction. The ratio of lifetimes of majority- to minority-spin electrons can be determined

Topological Nodal Line and Weyl Magnons in the Non-Coplanar Antiferromagnet MnTe2

December 20, 2025
Author(s)
Angela Hight Walker, Thuc Mai, Kevin Garrity
Using a combination of band representation analysis, inelastic neutron scattering (INS), magneto-Raman spectroscopy measurements, and linear spin wave theory, we determine that the non-coplanar antiferromagnet MnTe2 hosts symmetry-protected topological

Chirped magneto-optical trap of molybdenum

December 12, 2025
Author(s)
Sai Naga Manoj Paladugu, Nickolas Pilgram, Stephen Eckel, Eric Norrgard
We have directly loaded a cryogenic beam of molybdenum atoms into a magneto-optical trap. By chirping the detuning of the trapping lasers, we were able to enhance the number of atoms loaded into the trap by more than a factor of 2. We optimize the trapped

Spectroscopy of photoionization from the 1E singlet state in nitrogen-vacancy centers in diamond

October 17, 2024
Author(s)
Sean Blakley, Thuc Mai, Stephen Moxim, Jason Ryan, Adam Biacchi, Angela Hight Walker, Robert McMichael
The 1E—1A1 singlet manifold of the negatively charged nitrogen vacancy (NV −) center in diamond plays a central role in the quantum information and quantum sensing applications of the NV − center. However, the energy of this manifold within the diamond

Geometrical Frustration Versus Kitaev Interactions in BaCo 2 (AsO 4 ) 2

January 10, 2023
Author(s)
Thomas Halloran, Felix Desrochers, Emily Zhang, Tong Chen, Li E. Chern, Zhijun Xu, Barry Winn, Melissa Graves-Brook, M. B. Stone, Alexander I. Kolesnikov, Yiming Qiu, Ruidan Zhong, Robert Cava, Yong Kim, Collin L. Broholm
Recently, Co-based honeycomb magnets have been proposed as promising candidate materials to host the Kitaev spin liquid state. One of the front-runners is BaCo 2(AsO 4) 2 (BCAO), where it was suggested that the exchange processes between Co 2+ ions via the

Elucidating the local atomic and electronic structure of amorphous oxidized superconducting niobium films

December 16, 2021
Author(s)
Thomas Harrelson, Evan Sheridan, Ellis Kennedy, John Vinson, Alpha N'Diaye, M. Altoe, Alex Weber-Bargioni, Adam Schwartzberg, Irfan Siddiqi, D. Ogletree, Mary Scott, Sinead Griffin
Qubits made from superconducting materials are a mature platform for quantum information science application such as quantum computing. However, materials-based losses are now a limiting factor in reaching the coherence times needed for applications. In

Stability of Global Entanglement in Thermal States of Spin Chains

October 12, 2021
Author(s)
G K. Brennen, Stephen Bullock
We investigate the entanglement properties of a one dimensional chain of spin qubits coupled via nearest neighbor interactions. The entanglement measure used is the $n$-concurrence, which is distinct from other measures on spin chains such as bipartite

E 8 Spectra of Quasi-One-Dimensional Antiferromagnet BaCo 2 V 2 O 8 under Transverse Field

August 9, 2021
Author(s)
Haiyuan Zou, Y. Cui, Xiao Wang, Z. Zhang, J. Yang, Guangyong Xu, A. Okutani, M. Hagiwara, M. Matsuda, G. Wang, Giuseppe Mussardo, K. Hodsagi, M. Kormos, Zhangzhen He, S. Kimura, Rong Yu, Weiqiang Yu, Jie Ma, Jianda Wu
Exotic excitations can emerge in the vicinity of a quantum phase transition. When the quantum critical point of the one-dimensional (1D) transverse field Ising model is perturbed by a longitudinal magnetic field, it was predicted that its massive
Displaying 2251 - 2275 of 3361
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