Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Ehlers, Georg"'
Autor:
Shu, Mingfang, Dong, Weicen, Jiao, Jinlong, Wu, Jiangtao, lin, Gaoting, Hong, Tao, Cao, Huibo, Matsuda, Masaaki, Tian, Wei, Chi, Songxue, Ehlers, Georg, Ouyang, Zhongwen, Chen, Hongwei, Zou, Youming, Qu, Zhe, Huang, Qing, Zhou, Haidong, Kamiya, Yoshitomo, Ma, Jie
We study the ground state and spin excitations in Ba3MnSb2O9, an easy-plane S = 5/2 triangular lattice antiferromagnet. By combining single-crystal neutron scattering, electric spin resonance (ESR), and spin wave calculations, we determine the frustr
Externí odkaz:
http://arxiv.org/abs/2306.05802
Modulation of Intensity Emerging from Zero Effort (MIEZE) is a neutron resonant spin echo technique which allows one to measure time correlation scattering functions in materials by implementing radio-frequency (RF) intensity modulation at the sample
Externí odkaz:
http://arxiv.org/abs/2105.00604
Autor:
Gao, Shang, May, Andrew F., Du, Mao-Hua, Paddison, Joseph A. M., Arachchige, Hasitha Suriya, Pokharel, Ganesh, Cruz, Clarina dela, Zhang, Qiang, Ehlers, Georg, Parker, David S., Mandrus, David G., Stone, Matthew B., Christianson, Andrew D.
Publikováno v:
Phys. Rev. B 103, 214418 (2021)
The hierarchy of the coupling strengths in a physical system often engenders an effective model at low energies where the decoupled high-energy modes are integrated out. Here, using neutron scattering, we show that the spin excitations in the breathi
Externí odkaz:
http://arxiv.org/abs/2101.12363
Autor:
Paddison, Joseph A. M., Ehlers, Georg, Cairns, Andrew B., Gardner, Jason S., Petrenko, Oleg A., Butch, Nicholas P., Khalyavin, Dmitry D., Manuel, Pascal, Fischer, Henry E., Zhou, Haidong, Goodwin, Andrew L., Stewart, J. Ross
Partially-ordered magnets are distinct from both spin liquids and conventional ordered magnets because order and disorder coexist in the same magnetic phase. Here, we determine the nature of partial order in the canonical frustrated pyrochlore antife
Externí odkaz:
http://arxiv.org/abs/2009.01670
Autor:
Sandberg, Lise Orduk, Edberg, Richard, Pedersen, Kasper S., Hatnean, Monica Ciomaga, Balakrishnan, Geetha, Mangin-Thro, Lucile, Wildes, Andrew, Fak, B., Ehlers, Georg, Sala, Gabriele, Henelius, Patrik, Lefmann, Kim, Deen, Pascale P.
Publikováno v:
Phys. Rev. B 104, 064425 (2021)
We report neutron scattering, magnetic susceptibility and Monte Carlo theoretical analysis to verify the short range nature of the magnetic structure and spin-spin correlations in a Yb$_3$Ga$_5$O$_{12}$ single crystal. The quantum spin state of Yb$^{
Externí odkaz:
http://arxiv.org/abs/2005.10605
Autor:
Pokharel, Ganesh, Arachchige, Hasitha Suriya, Williams, Travis J., May, Andrew F., Fishman, Randy S., Sala, Gabriele, Calder, Stuart, Ehlers, Georg, Parker, David S., Hong, Tao, Wildes, Andrew, Mandrus, David, Paddison, Joseph A. M., Christianson, Andrew D.
Publikováno v:
Phys. Rev. Lett. 125, 167201 (2020)
We present a comprehensive neutron scattering study of the breathing pyrochlore magnet LiGaCr4S8. We observe an unconventional magnetic excitation spectrum with a separation of high and low-energy spin dynamics in the correlated paramagnetic regime a
Externí odkaz:
http://arxiv.org/abs/2002.09749
Autor:
Ehlers, Georg, Athanasiades, Athanasios, Sun, Liang, Martin, Christopher S., Regmi, Murari, Lacy, Jeffrey L.
Prototypes of newly developed boron-coated straw (BCS) detectors have been tested in the thermal and cold neutron energy ranges. Their neutron detection performance has been benchmarked against the industry standard (detector tubes filled with 3He ga
Externí odkaz:
http://arxiv.org/abs/1908.01652
Autor:
Scheie, Allen, Kindervater, Jonas, Zhang, Shu, Changlani, Hitesh J., Sala, Gabriele, Ehlers, Georg, Heinemann, Andre, Tucker, Gregory S., Koohpayeh, Seyed M., Broholm, Collin
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2020 Nov 01. 117(44), 27245-27254.
Externí odkaz:
https://www.jstor.org/stable/26970904
Autor:
Zheng, Bo-Xiao, Chung, Chia-Min, Corboz, Philippe, Ehlers, Georg, Qin, Ming-Pu, Noack, Reinhard M., Shi, Hao, White, Steven R., Zhang, Shiwei, Chan, Garnet Kin-Lic
Publikováno v:
Science 358 (6367), 1155-1160 (2017)
Competing inhomogeneous orders are a central feature of correlated electron materials including the high-temperature superconductors. The two- dimensional Hubbard model serves as the canonical microscopic physical model for such systems. Multiple ord
Externí odkaz:
http://arxiv.org/abs/1701.00054
Autor:
Sibille, Romain, Lhotel, Elsa, Hatnean, Monica Ciomaga, Nilsen, Gøran, Ehlers, Georg, Cervellino, Antonio, Ressouche, Eric, Frontzek, Matthias, Zaharko, Oksana, Pomjakushin, Vladimir, Stuhr, Uwe, Walker, Helen C., Adroja, Devashibhai, Luetkens, Hubertus, Baines, Chris, Amato, Alex, Balakrishnan, Geetha, Fennell, Tom, Kenzelmann, Michel
The charge ordered structure of ions and vacancies characterizing rare-earth pyrochlore oxides serves as a model for the study of geometrically frustrated magnetism. The organization of magnetic ions into networks of corner-sharing tetrahedra gives r
Externí odkaz:
http://arxiv.org/abs/1610.08714