Zobrazeno 1 - 10
of 491
pro vyhledávání: '"Sefat, Athena"'
Autor:
Pocs, Christopher A., Leahy, Ian A., Xing, Jie, Choi, Eun Sang, Sefat, Athena S., Hermele, Michael, Lee, Minhyea
We present a comprehensive study on the longitudinal magneto-thermal transport in a paramagnetic effective spin-1/2 magnetic insulator CsYbSe$_2$, by introducing a minimal model requiring only Zeeman splitting and magnetoelastic coupling. We use it t
Externí odkaz:
http://arxiv.org/abs/2401.01407
Autor:
Xie, Tao, Gozel, S., Xing, Jie, Zhao, Nan, Avdoshenko, S. M., Wu, Liusuo, Sefat, Athena S., Chernyshev, A. L., Läuchli, A. M., Podlesnyak, A., Nikitin, S. E.
Publikováno v:
Physical Review Letters 133, 096703 (2024)
The extraordinary properties of the Kitaev model have motivated an intense search for new physics in materials that combine geometrical and bond frustration. In this work, we employ inelastic neutron scattering, spin wave theory, and exact diagonaliz
Externí odkaz:
http://arxiv.org/abs/2311.13146
Autor:
Xie, Tao, Zhao, Nan, Gozel, S., Xing, Jie, Avdoshenko, S. M., Taddei, K. M., Kolesnikov, A. I., Ma, Peiyue, Harrison, N., Cruz, C. dela, Wu, Liusuo, Sefat, Athena S., Chernyshev, A. L., Läuchli, A. M., Podlesnyak, A., Nikitin, S. E.
Publikováno v:
Physical Review B 110, 054445 (2024)
The two-dimensional triangular-lattice antiferromagnet (TLAF) is a textbook example of frustrated magnetic systems. Despite its simplicity, the TLAF model exhibits a highly rich and complex magnetic phase diagram, featuring numerous distinct ground s
Externí odkaz:
http://arxiv.org/abs/2311.13143
Autor:
Guo, Yueming, Miao, Hu, Zou, Qiang, Fu, Mingming, Sefat, Athena S., Lupini, Andrew R., Kalinin, Sergei V., Gai, Zheng
Electronic states within superconducting vortices hold crucial information about paring mechanisms and topology. While scanning tunneling microscopy/spectroscopy(STM/S) can image the vortices, it is difficult to isolate the intrinsic electronic state
Externí odkaz:
http://arxiv.org/abs/2302.09337
Autor:
Sanjeewa, Liurukara D, Garlea, V. Ovidiu, Fishman, Randy S., Foroughian, Mahsa, Yin, Li, Xing, Jie, Parker, David S., Pellizzeri, Tiffany M. Smith, Sefat, Athena S., Kolis, Joseph W.
Identifying and characterizing new magnetic systems with Co2+ ions can enhance our understanding of quantum behavior since Co2+ can host a pseudospin-1/2 magnetic ground state. Understanding the magnetic ground state and the phase diagrams of such sy
Externí odkaz:
http://arxiv.org/abs/2211.07030
Autor:
Sanjeewa, Liurukara D., Garlea, V. Ovidiu, Taddei, Keith M., Yin, Li, Xing, Jie, Fishman, Randy S., Parker, David S., Sefat, Athena S.
While certain magnetic sublattices have long been known theoretically to give rise to emergent physics via competing magnetic interactions and quantum effects, finding such configurations in real materials is often deeply challenging. Here we report
Externí odkaz:
http://arxiv.org/abs/2207.06621
Autor:
Taddei, Keith M., Lei, Bing-Hua, Susner, Michael A., Zhai, Hui-Fei, Bullard, Thomas J., Sanjeewa, Liurukara D., Zheng, Qiang, Sefat, Athena S., Chi, Songxue, Cruz, Clarina dela, Singh, David J., Lv, Bing
Majorana zero modes form as intrinsic defects in an odd-orbital one-dimensional superconductor thus motivating the search for such materials in the pursuit of Majorana physics. Here, we present combined experimental results and first principles calcu
Externí odkaz:
http://arxiv.org/abs/2206.11757
Autor:
Pai, Yun-Yi, Marvinney, Claire E., Liang, Liangbo, Pokharel, Ganesh, Xing, Jie, Li, Haoxiang, Li, Xun, Chilcote, Michael, Brahlek, Matthew, Lindsay, Lucas, Miao, Hu, Sefat, Athena S., Parker, David, Wilson, Stephen D., Lawrie, Benjamin J.
The notion that phonons can carry pseudo-angular momentum has become popular in the last decade, with recent research efforts highlighting phonon chirality, Berry curvature of phonon band structure, and the phonon Hall effect. When a phonon is resona
Externí odkaz:
http://arxiv.org/abs/2203.13361
Autor:
Pai, Yun-Yi, Marvinney, Claire E., Liang, Liangbo, Xing, Jie, Scheie, Allen, Puretzky, Alexander A., Halász, Gábor B., Li, Xun, Juneja, Rinkle, Sefat, Athena S., Parker, David, Lindsay, Lucas, Lawrie, Benjamin J.
Publikováno v:
J. Mater. Chem. C, 2022, 10, 4148
CsYbSe$_2$, a recently identified quantum spin liquid (QSL) candidate, exhibits strong crystal electric field (CEF) excitations. Here, we identify phonon and CEF modes with Raman spectroscopy and observe strong CEF-phonon mixing resulting in a vibron
Externí odkaz:
http://arxiv.org/abs/2111.03919
Autor:
Pocs, Christopher A., Siegfried, Peter E., Xing, Jie, Sefat, Athena S., Hermele, Michael, Normand, Bruce, Lee, Minhyea
Publikováno v:
Phys. Rev. Research 3, 043202 (2021)
A primary goal at the interface of theoretical and experimental quantum magnetism is the investigation of exotic spin states, most notably quantum spin liquids (QSLs). Magnetic rare-earth ions go beyond the straightforward paradigm of geometrical fru
Externí odkaz:
http://arxiv.org/abs/2109.09758