Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Heacock B"'
Autor:
Huber, M. G., Taminiau, I., Cory, D. G., Heacock, B., Sarenac, D., Valdillez, R., Pushin, D. A.
Perfect-crystal neutron interferometry which is analogous to Mach-Zehnder interferometry, uses Bragg diffraction to form interfering neutron paths. The measured phase shifts can be used to probe many types of interactions whether it be nuclear, elect
Externí odkaz:
http://arxiv.org/abs/2402.16127
Autor:
Henderson, M. E., Heacock, B., Bleuel, M., Cory, D. G., Heikes, C., Huber, M. G., Krzywon, J., Nahman-Levesqué, O., Luke, G. M., Pula, M., Sarenac, D., Zhernenkov, K., Pushin, D. A.
Skyrmions are topologically-protected spin textures thought to nucleate and annihilate on points of vanishing magnetization, called Bloch points. However, owing to a lack of bulk techniques, experimental visualizations of skyrmion lattices and their
Externí odkaz:
http://arxiv.org/abs/2208.00023
Autor:
Kapahi, C., Sarenac, D., Bleuel, M., Cory, D. G., Heacock, B., Henderson, M., Huber, M. G., Taminiau, I., Pushin, D. A.
Neutrons have emerged as a unique probe at the forefront of modern material science, unrivaled in their penetrating abilities. A major challenge stems from the fact that neutron optical devices are limited to refractive indices on the order of $n\app
Externí odkaz:
http://arxiv.org/abs/2112.13176
Autor:
Henderson, M. E., Bleuel, M., Beare, J., Cory, D. G., Heacock, B., Huber, M. G., Luke, G. M., Pula, M., Sarenac, D., Sharma, S., Smith, E. M., Zhernenkov, K., Pushin, D. A.
Underlying disorder in skyrmion materials may both inhibit and facilitate skyrmion reorientations and changes in topology. The identification of these disorder-induced topologically active regimes is critical to realizing robust skyrmion spintronic i
Externí odkaz:
http://arxiv.org/abs/2112.08669
The development of novel neutron optics devices that rely on perfect crystals and nano-scale features are ushering a new generation of neutron science experiments, from fundamental physics to material characterization of emerging quantum materials. H
Externí odkaz:
http://arxiv.org/abs/2111.05925
Autor:
Haun, R., Wietfeldt, F. E., Arif, M., Huber, M. G., Black, T. C., Heacock, B., Pushin, D. A., Shahi, C. B.
Publikováno v:
Phys. Rev. Lett. 124, 012501 (2020)
We report a 0.08 % measurement of the bound neutron scattering length of $^4$He using neutron interferometry. The result is $b = (3.0982 \pm 0.0021 \mbox{ [stat]} \pm 0.0014 \mbox{ [sys]}) \mbox{ fm}$. The corresponding free atomic scattering length
Externí odkaz:
http://arxiv.org/abs/1910.14155
Autor:
Heacock, B., Sarenac, D., Cory, D. G., Huber, M. G., Hussey, D. S., Kapahi, C., Miao, H., Wen, H., Pushin, D. A.
The recent development of phase-grating moir\'e neutron interferometry promises a wide range of impactful experiments from dark-field imaging of material microstructure to precise measurements of fundamental constants. However, the contrast of 3 % ob
Externí odkaz:
http://arxiv.org/abs/1812.07097
Autor:
Heacock, B., Sarenac, D., Cory, D. G., Huber, M. G., MacLean, J. P. W., Miao, H., Wen, H., Pushin, D. A.
We demonstrate a neutron tomography technique with sub-micrometer spatial resolution. Our method consists of measuring neutron diffraction spectra using a double crystal diffractometer as a function of sample rotation and then using a phase retrieval
Externí odkaz:
http://arxiv.org/abs/1808.07476
Autor:
Sarenac, D., Pushin, D. A., Huber, M. G., Hussey, D. S., Miao, H., Arif, M., Cory, D. G., Cronin, A. D., Heacock, B., Jacobson, D. L., LaManna, J. M., Wen, H.
Publikováno v:
Phys. Rev. Lett. 120, 113201 (2018)
We demonstrate a three phase-grating neutron interferometer as a robust candidate for large area interferometry applications and characterization of materials. This novel far-field moire technique allows for broad wavelength acceptance and relaxed re
Externí odkaz:
http://arxiv.org/abs/1708.05421
Autor:
Li, K., Arif, M., Cory, D. G., Haun, R., Heacock, B., Huber, M. G., Nsofini, J., Pushin, D. A., Saggu, P., Sarenac, D., Shahi, C. B., Skavysh, V., Snow, W. M., Young, A. R.
Publikováno v:
Phys. Rev. D 93, 062001 (2016)
The physical origin of the dark energy that causes the accelerated expansion rate of the universe is one of the major open questions of cosmology. One set of theories postulates the existence of a self-interacting scalar field for dark energy couplin
Externí odkaz:
http://arxiv.org/abs/1601.06897