Zobrazeno 1 - 10
of 254
pro vyhledávání: '"Cristian D. Batista"'
Autor:
Pyeongjae Park, E. A. Ghioldi, Andrew F. May, James A. Kolopus, Andrey A. Podlesnyak, Stuart Calder, Joseph A. M. Paddison, A. E. Trumper, L. O. Manuel, Cristian D. Batista, Matthew B. Stone, Gábor B. Halász, Andrew D. Christianson
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract The S = 1/2 triangular lattice antiferromagnet (TLAF) is a paradigmatic example of frustrated quantum magnetism. An ongoing challenge involves understanding the influence of exchange anisotropy on the collective behavior within such systems.
Externí odkaz:
https://doaj.org/article/722172f2c49740e39d53c1e09c7c9b86
Autor:
Joseph A. M. Paddison, Hao Zhang, Jiaqiang Yan, Matthew J. Cliffe, Michael A. McGuire, Seung-Hwan Do, Shang Gao, Matthew B. Stone, David Dahlbom, Kipton Barros, Cristian D. Batista, Andrew D. Christianson
Publikováno v:
npj Quantum Materials, Vol 9, Iss 1, Pp 1-8 (2024)
Abstract Magnetic materials with noncoplanar magnetic structures can show unusual physical properties driven by nontrivial topology. Topologically-active states are often multi-q structures, which are challenging to stabilize in models and to identif
Externí odkaz:
https://doaj.org/article/cd162b79c7d34a11b3138af088e0eaf7
Autor:
Pyeongjae Park, Woonghee Cho, Chaebin Kim, Yeochan An, Yoon-Gu Kang, Maxim Avdeev, Romain Sibille, Kazuki Iida, Ryoichi Kajimoto, Ki Hoon Lee, Woori Ju, En-Jin Cho, Han-Jin Noh, Myung Joon Han, Shang-Shun Zhang, Cristian D. Batista, Je-Geun Park
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract The triangular lattice antiferromagnet (TLAF) has been the standard paradigm of frustrated magnetism for several decades. The most common magnetic ordering in insulating TLAFs is the 120° structure. However, a new triple-Q chiral ordering c
Externí odkaz:
https://doaj.org/article/bbe2af87cfed4fb390a6c8c6674f9a63
Publikováno v:
npj Computational Materials, Vol 9, Iss 1, Pp 1-12 (2023)
Abstract We consider the problem of extracting a low-energy spin Hamiltonian from a triangular Kondo Lattice Model (KLM). The non-analytic dependence of the effective spin-spin interactions on the Kondo exchange excludes the use of perturbation theor
Externí odkaz:
https://doaj.org/article/4dcdee3e1cfc47c3b73c5af3bf05d36b
Autor:
Xiaojian Bai, Shang-Shun Zhang, Hao Zhang, Zhiling Dun, W. Adam Phelan, V. Ovidiu Garlea, Martin Mourigal, Cristian D. Batista
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)
Abstract The search for new elementary particles is one of the most basic pursuits in physics, spanning from subatomic physics to quantum materials. Magnons are the ubiquitous elementary quasiparticle to describe the excitations of fully-ordered magn
Externí odkaz:
https://doaj.org/article/a582dac02bdc43e1bf6256a012e95c03
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-7 (2023)
Abstract Magnetic skyrmions are nanoscale topological textures that have been recently observed in different families of quantum magnets. These objects are called CP1 skyrmions because they are built from dipoles—the target manifold is the 1D compl
Externí odkaz:
https://doaj.org/article/8b301a3d83b64106811091e8552ff27f
Autor:
Seung-Hwan Do, Hao Zhang, David A. Dahlbom, Travis J. Williams, V. Ovidiu Garlea, Tao Hong, Tae-Hwan Jang, Sang-Wook Cheong, Jae-Hoon Park, Kipton Barros, Cristian D. Batista, Andrew D. Christianson
Publikováno v:
npj Quantum Materials, Vol 8, Iss 1, Pp 1-6 (2023)
Abstract Quantum magnets admit more than one classical limit and N-level systems with strong single-ion anisotropy are expected to be described by a classical approximation based on SU(N) coherent states. Here we test this hypothesis by modeling fini
Externí odkaz:
https://doaj.org/article/525f3856cfcd4f2fa660bb141e367a72
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Previous numerical work has predicted a new spin liquid phase in the antiferromagnetic Kitaev model at intermediate magnetic fields; however, its nature is not easily discernible by numerical approaches. Here, by using a variational approach, the aut
Externí odkaz:
https://doaj.org/article/4398b57a57dc4751a440b0b462d218e3
Autor:
Seung-Hwan Do, Hao Zhang, Travis J. Williams, Tao Hong, V. Ovidiu Garlea, J. A. Rodriguez-Rivera, Tae-Hwan Jang, Sang-Wook Cheong, Jae-Hoon Park, Cristian D. Batista, Andrew D. Christianson
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-12 (2021)
Anisotropic spin S >1/2 quantum magnets can have multiple low energy modes. In this manuscript, the authors study the interaction of such low energy modes in the S = 1 antiferromagnet Ba2FeSi2O7 by combining neutron scattering measurements with an SU
Externí odkaz:
https://doaj.org/article/cdd72308612b4a0487a13c90826b3202
Autor:
Anjana M. Samarakoon, Kipton Barros, Ying Wai Li, Markus Eisenbach, Qiang Zhang, Feng Ye, V. Sharma, Z. L. Dun, Haidong Zhou, Santiago A. Grigera, Cristian D. Batista, D. Alan Tennant
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Developing an understanding of a material’s magnetic behaviour based on neutron scattering measurements often relies on extracting an effective spin model. Samarakoon et al. demonstrate an automated machine learning approach to this problem, leadin
Externí odkaz:
https://doaj.org/article/5964d7ee7a0c4c278294454fdb52db06