Zobrazeno 1 - 10
of 139
pro vyhledávání: '"Morris, Gerald D"'
Autor:
Zappala, Emma, Elmslie, Timothy A., Morris, Gerald D., Meisel, Mark W., Dingreville, Rémi, Hamlin, James J., Frandsen, Benjamin A.
CrMnFeCoNi, also called the Cantor alloy, is a well-known high-entropy alloy whose magnetic properties have recently become a focus of attention. We present a detailed muon spin relaxation study of the influence of chemical composition and sample pro
Externí odkaz:
http://arxiv.org/abs/2408.05295
Autor:
Thoeng, Edward, Asaduzzaman, Md., Kolb, Philipp, McFadden, Ryan M. L., Morris, Gerald D., Ticknor, John O., Dunsiger, Sarah R., Karner, Victoria L., Fujimoto, Derek, Junginger, Tobias, Kiefl, Robert F., MacFarlane, W. Andrew, Li, Ruohong, Saminathan, Suresh, Laxdal, Robert E.
Publikováno v:
Sci. Rep. 14, 21487 (2024)
We report direct measurements of the magnetic field screening at the limits of the Meissner phase for two superconducting Nb samples. The samples are processed with two different surface treatments that have been developed for superconducting radio-f
Externí odkaz:
http://arxiv.org/abs/2405.05451
Autor:
Ticknor, John O., Adelman, Jonah R., Chatzichristos, Aris, Dehn, Martin H., Egoriti, Luca, Fujimoto, Derek, Karner, Victoria L., Kiefl, Robert F., Levy, C. D. Philip, Li, Ruohong, McFadden, Ryan M. L., Morris, Gerald D., Oudah, Mohamed, Stachura, Monika, Thoeng, Edward, MacFarlane, W. Andrew
Publikováno v:
Phys. Rev. B 108, 195437 (2023)
We report $\beta$-detected nuclear magnetic resonance of ultra-dilute $^{8}$Li$^{+}$ implanted in highly oriented pyrolytic graphite (HOPG). The absence of motional narrowing and diffusional spin-lattice relaxation implies Li$^+$ is not appreciably m
Externí odkaz:
http://arxiv.org/abs/2301.07821
Autor:
McFadden, Ryan M. L., Asaduzzaman, Md, Buck, Terry J., Cortie, David L., Dehn, Martin H., Dunsiger, Sarah R., Kiefl, Robert F., Laxdal, Robert E., Levy, C. D. Philip, MacFarlane, W. Andrew, Morris, Gerald D., Pearson, Matthew R., Thoeng, Edward, Junginger, Tobias
Publikováno v:
J. Appl. Phys. 134, 163902 (2023)
We report measurements of the Meissner screening profile in a Nb(300 nm)/Al$_{2}$O$_{3}$ thin film using $^{8}$Li $\beta$-detected nuclear magnetic resonance ($\beta$-NMR). The NMR probe $^{8}$Li was ion-implanted into the Nb film at energies $\leq$
Externí odkaz:
http://arxiv.org/abs/2212.01137
Autor:
Thoeng, Edward, McFadden, Ryan M. L., Saminathan, Suresh, Morris, Gerald D., Kolb, Philipp, Matheson, Ben, Asaduzzaman, Md, Baartman, Richard, Dunsiger, Sarah R., Fujimoto, Derek, Junginger, Tobias, Karner, Victoria L., Kiy, Spencer, Li, Ruohong, Stachura, Monika, Ticknor, John O., Kiefl, Robert F., MacFarlane, W. Andrew, Laxdal, Robert E.
Publikováno v:
Rev. Sci. Instrum. 94, 023305 (2023)
A new high field spectrometer has been built to extend the capabilities of the $\beta$-detected nuclear magnetic resonance ($\beta$-NMR) facility at TRIUMF. This new beamline extension allows $\beta$-NMR spectroscopy to be performed with fields up to
Externí odkaz:
http://arxiv.org/abs/2211.15619
Autor:
Elmslie, Timothy A., Startt, Jacob, Soto-Medina, Sujeily, Yang, Yang, Feng, Keke, Baumbach, Ryan E., Zappala, Emma, Morris, Gerald D., Frandsen, Benjamin A., Meisel, Mark W., Manuel, Michele V., Dingreville, Rémi, Hamlin, James J.
Magnetic, specific heat, and structural properties of the equiatomic Cantor alloy system are reported for temperatures between 5 kelvin and 300 kelvin, and up to fields of 70 kilo-oersted. Magnetization measurements performed on as-cast, annealed, an
Externí odkaz:
http://arxiv.org/abs/2202.11073
Autor:
Adelman, Jonah R., Fujimoto, Derek, Dehn, Martin H., Dunsiger, Sarah R., Karner, Victoria L., Levy, C. D. Philip, Li, Ruohong, McKenzie, Iain, McFadden, Ryan M. L., Morris, Gerald D., Pearson, Matthew R., Stachura, Monika, Thoeng, Edward, Ticknor, John O., Ohashi, Naoki, Kojima, Kenji M., MacFarlane, W. Andrew
Publikováno v:
Phys Rev. B 106, 035205 (2022)
We report on the stability and magnetic state of ion implanted $^8$Li in single crystals of the semiconductor ZnO using $\beta$-detected nuclear magnetic resonance. At ultradilute concentrations, the spectra reveal distinct Li sites from 7.6 to 400 K
Externí odkaz:
http://arxiv.org/abs/2109.08637
Autor:
Zhu, Zihao, Zhang, Jian, Ding, Zhaofeng, Tan, Cheng, Chen, Changsheng, Wu, Qiong, Yang, Yanxing, Bernal, Oscar O., Ho, Pei-Chun, Morris, Gerald D., Koda, Akihiro, Hillier, Adrian D., Cottrell, Stephen P., Baker, Peter J., Biswas, Pabitra K., Qian, Jun, Yao, Xin, MacLaughlin, Douglas E., Shu, Lei
Publikováno v:
Phys. Rev. B 103, 134426 (2021)
We report results of a muon spin relaxation study of slow magnetic fluctuations in the pseudogap phase of underdoped single-crystalline YBa$_{2}$Cu$_{3}$O$_{y}$, $y = 6.77$ and 6.83. The dependence of the dynamic muon spin relaxation rate on applied
Externí odkaz:
http://arxiv.org/abs/2008.00145
Autor:
McFadden, Ryan M. L., Chatzichristos, Aris, Cortie, David L., Fujimoto, Derek, Hor, Yew San, Ji, Huiwen, Karner, Victoria L., Kiefl, Robert F., Levy, C. D. Philip, Li, Ruohong, McKenzie, Iain, Morris, Gerald D., Pearson, Matthew R., Stachura, Monika, Cava, Robert J., MacFarlane, W. Andrew
Publikováno v:
Phys. Rev. B 102, 235206 (2020)
We report $\beta$-detected nuclear magnetic resonance ($\beta$-NMR) measurements in Bi$_{2}$Se$_{3}$:Ca (BSC) and Bi$_{2}$Te$_{3}$:Mn (BTM) single crystals using $^{8}$Li$^{+}$ implanted to depths on the order of 100 nm. Above $\sim 200$ K, spin-latt
Externí odkaz:
http://arxiv.org/abs/1911.12212
Autor:
Li, Ruohong, Lassen, Jens, Levy, C.D. Philip, Roman, Mathias, Teigelhöfer, Andrea, Karner, Victoria, Morris, Gerald D., Stachura, Monika, Gottberg, Alexander
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, B August 2023 541:228-231