Article
Materials Science, Multidisciplinary
Varun Menon, Nicholas E. Sherman, Maxime Dupont, Allen O. Scheie, D. Alan Tennant, Joel E. Moore
Summary: Multipartite entanglement in a many-body quantum system can be witnessed through the quantum Fisher information (QFI), and in this study, it was shown that the finite temperature QFI can be expressed in terms of the system's static structure factor. This allows for the determination of finite temperature scaling of multipartite entanglement and low temperature entanglement depth without the need for the full dynamical response function of the system. The study focused on the 1D spin-21 antiferromagnetic Heisenberg model and found that multipartite entanglement in the Heisenberg chain diverges nontrivially as ln(1/T )3/2. The results have implications for experiments probing entanglement in quantum materials.
Article
Materials Science, Multidisciplinary
David Msika, Dalila Bounoua, Olivier Demortier, Francoise Damay, Romuald Saint-Martin, Rolf Heid, Alexandre Ivanov, Andrea Piovano, Frederic Bourdarot, David Berardan, Loreynne Pinsard-Gaudart, Sylvain Petit
Summary: This paper focuses on the thermal transport properties of antiferromagnetic spin chains cuprates. The spinons, chain magnetic excitations, participate in heat transport at low temperature, but spinon heat transport decays well below room temperature, possibly due to a coupling with phonons. Through inelastic neutron scattering, we extensively studied the lattice dynamics of spin chain compounds Sr2CuO3, Ca2CuO3, and double spin-chain compounds SrCuO2. We conclude that there are no obvious anomalies in the phonon dispersions, suggesting a weak spinon-phonon coupling regime.
Article
Materials Science, Multidisciplinary
Yangjie Wang, Jige Chen
Summary: This study reveals a crossover of wave-packet dynamics from a phonon-dominated to a soliton-dominated state in a quasi-one-dimensional molybdenum disulfide (MoS2) sheet at high temperatures below its melting point. The anomalous energy transport exhibits a universality class with a thermal conductivity divergence exponent alpha = 2/5 at a finite length scale within 2000 nm when solitons are excited above 600 K, indicating a peculiar solitonlike contribution to thermal conduction in low-dimensional crystalline solids at high temperatures.
Article
Physics, Applied
J. Amrit, T. Medintseva, K. Nemchenko, T. Vikhtinskaya
Summary: This study presents an analytical analysis of the one-dimensional ballistic flux of quasiparticles in the presence of scattering centers within the framework of the theory of random walks. The model provides explicit analytical expressions for the quasiparticle flux and the associated heat flux carried by phonons, considering factors such as the number of scattering centers and the probabilities of scattering and absorption. The model is applied to one-dimensional nanostructures and quasi-one-dimensional heat-conducting systems, and is shown to be in excellent agreement with experimental data.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
N. Mori, A. Komada, G. Mil'nikov
Summary: The thermal conductance of one-dimensional mass-disordered systems is calculated using linear and quadratic dispersion models. Different dispersion models exhibit different thermal diffusion behaviors, with super-diffusive nature for the linear model and normal-diffusion behavior for the quadratic model.
Article
Materials Science, Multidisciplinary
Wei Zhang, Yangyu Guo, Shi-Yun Xiong, Hong-Liang Yi
Summary: This study investigates the frequency-dependent heat transport characteristics in mass disordered Si1-xGex nanowires using the nonequilibrium Green's function method. The results reveal the coexistence of ballistic transport, diffusive transport, and Anderson localization in SiGe alloyed nanowires. Ballistic phonons are observed at low frequencies, with a shift to lower frequencies as the Ge concentration increases.
Article
Physics, Applied
Roman Anufriev, Yunhui Wu, Masahiro Nomura
Summary: The article discusses the significance of ballistic thermal transport at the nanoscale and experimental demonstrations in semiconductor nanowires. Research reveals a controversy regarding ballistic conduction, with future experiments expected to resolve the issue.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Mathematics, Applied
Lingrui Ge, Ilya Kachkovskiy
Summary: In this paper, we demonstrate the ballistic motion of one-dimensional discrete multifrequency quasiperiodic Schrodinger operators with smooth potentials on the set of energies where the corresponding Schrodinger cocycles can be smoothly reduced to constant rotations. The proof establishes a local version of strong ballistic transport on a sequence of subsets, where reducibility can be achieved by a conjugation uniformly bounded in the C-l-norm. We also establish global strong ballistic transport under an additional integral condition on the norms of conjugation matrices, which is satisfied in many known examples.
COMMUNICATIONS ON PURE AND APPLIED MATHEMATICS
(2022)
Article
Materials Science, Multidisciplinary
S. Guchhait, Qing-Ping Ding, M. Sahoo, A. Giri, S. Maji, Y. Furukawa, R. Nath
Summary: The structural and magnetic properties of KNaCuP2O7 were investigated using various experimental techniques and electronic structure calculations, confirming its nature as a one-dimensional uniform spin-1/2 Heisenberg antiferromagnet. The experimental results were well supported by theoretical calculations, providing insights into the magnetic behavior of the system.
Article
Mechanics
Atsuki Yoshinaga
Summary: This paper investigates the propagation of local impact in the one-dimensional XY model with anisotropy in a magnetic field. Various types of light-cone-like propagation are numerically observed in the parameter region of the model. The combination of numerical integration and asymptotic analysis leads to certain findings regarding the propagation behavior under different conditions.
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
(2021)
Article
Physics, Applied
Xian-Ran Zhang, Xiao-Fang Peng
Summary: The thermal transport property in low-dimensional structures has been studied theoretically, considering the effect of temperature on phonon-phonon coupling. New thermal transport equations were developed to distinguish between ballistic and diffusive thermal transport in quantum structures. Using these equations, the thermal transport properties in GaAs nanowire and zigzag graphene nanoribbon were investigated to demonstrate the transition from ballistic to diffusive thermal transport.
MODERN PHYSICS LETTERS B
(2022)
Article
Nanoscience & Nanotechnology
Rhonald Burgos, J. H. Warnes, Gean Carlos Arteaga
Summary: This paper calculates the Drude-Boltzmann conductivity for two-dimensional pseudo-spin one systems with isotropic and anisotropic scattering mechanisms, showing that the conductivity can be isotropic or anisotropic depending on the scattering. The implications of anisotropic scattering in the theory of quantum transport are discussed.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Physics, Fluids & Plasmas
Francesco De Vita, Giovanni Dematteis, Raffaele Mazzilli, Davide Proment, Yuri V. Lvov, Miguel Onorato
Summary: One-dimensional particle chains are fundamental models to explain anomalous thermal conduction in low-dimensional solids, and the wave kinetic equation is used to study thermal conduction. The study reveals the interaction between high and low wave numbers in thermal conduction.
Article
Materials Science, Multidisciplinary
Aly H. Abdeldaim, Alexander A. Tsirlin, Jacques Ollivier, Clemens Ritter, Dominic Fortes, Robin S. Perry, Lucy Clark, Goran J. Nilsen
Summary: We conducted a comprehensive experimental and ab initio study on the S = 1/2 Mo5+ system, KMoOP2O7, and found that it realizes the S = 1/2 Heisenberg chain antiferromagnet model. Our results reveal the formation of a magnetic network composed of pairs of Mo5+ chains. The presence of antiferromagnetic interactions within the chains was confirmed through magnetometry measurements and analysis of the magnetic specific heat. Inelastic neutron-scattering data analysis confirmed the one-dimensional character of the magnetic correlations in KMoOP2O7.
Article
Materials Science, Multidisciplinary
Francois Damanet, Elliott Mansfield, Megan Briggeman, Patrick Irvin, Jeremy Levy, Andrew J. Daley
Summary: Understanding and controlling the transport properties of interacting fermions is crucial in quantum physics; Different forms of spin-orbit coupling can enhance electron pairing in 1D waveguides; Metal-oxide heterostructures are attractive platforms for controlling the collective spin of electron bound states.
Article
Chemistry, Multidisciplinary
Daiki Ootsuki, Hiroyuki Ishii, Kazutaka Kudo, Minoru Nohara, Masashi Arita, Hirofumi Namatame, Masaki Taniguchi, Naurang L. Saini, Takashi Mizokawa
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2019)
Article
Biochemical Research Methods
T. Sakurai, S. Kimura, M. Kimata, H. Nojiri, S. Awaji, S. Okubo, H. Ohta, Y. Uwatoko, K. Kudo, Y. Koike
JOURNAL OF MAGNETIC RESONANCE
(2018)
Article
Physics, Multidisciplinary
Kazutaka Kudo, Satoshi Ioka, Naohisa Happo, Hiromi Ota, Yoshihiro Ebisu, Koji Kimura, Takuma Hada, Takumi Kimura, Hiroo Tajiri, Shinya Hosokawa, Kouichi Hayashi, Minoru Nohara
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2019)
Article
Physics, Applied
E. Paris, T. Wakita, L. Simonelli, C. Marini, W. Olszewski, K. Terashima, F. Stramaglia, G. M. Pugliese, T. Mizokawa, S. Loka, K. Kudo, M. Nohara, T. Yokoya, N. L. Saini
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2019)
Article
Physics, Multidisciplinary
Takayuki Kawamata, Naoki Sugawara, Siyed Mohammad Haidar, Tadashi Adachi, Takashi Noji, Kazutaka Kudo, Norio Kobayashi, Yutaka Fujii, Hikomitsu Kikuchi, Meiro Chiba, German A. Petrakovskii, Mikhail A. Popov, Leonard N. Bezmaternykh, Yoji Koike
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2019)
Article
Physics, Multidisciplinary
Kazutaka Kudo, Hikaru Hiiragi, Toshiaki Honda, Kazunori Fujimura, Hiroyuki Idei, Minoru Nohara
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2020)
Article
Physics, Multidisciplinary
Kazutaka Kudo, Toshiaki Honda, Hikaru Hiiragi, Hiromi Ota, Minoru Nohara
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2020)
Article
Physics, Multidisciplinary
Kazutaka Kudo, Hoang Yen Nguyen, Chang-geun Oh, Kensuke Takaki, Minoru Nohara
Summary: The study synthesized a novel compound Pt1.26Bi2, with a CdI2-type structure and bulk superconductivity at 2.4K. The compound's triangular platinum network and structure composed of heavy elements make it a useful platform for exploring exotic phenomena.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2021)
Article
Physics, Multidisciplinary
Daiki Ootsuki, Hidekazu Okamura, Shogo Mitsumoto, Yuka Ikemoto, Taro Moriwaki, Masashi Arita, Teppei Yoshida, Kazutaka Kudo, Hiroyuki Ishii, Minoru Nohara, Takashi Mizokawa
Summary: Under high pressure, the electronic structure of calaverite AuTe2 undergoes significant changes, with an increase in the Drude response and the suppression of the hump structure.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2021)
Article
Physics, Multidisciplinary
Kensuke Takaki, Mayu Yamamoto, Masamichi Nakajima, Tetsuya Takeuchi, Hoang Yen Nguyen, Minoru Nohara, Yasuhiro Kishioji, Takahiro Fujii, Kentaro Yoshino, Shigeki Miyasaka, Kazutaka Kudo
Summary: Novel CdI2-type compounds Pt(Bi(1-x)Ch(x))(2) (Ch = Se, Te) were synthesized, and it was found that the partial substitution of Ch for Bi induces a structural phase transition. The layered structure of Pt(Bi(1-x)Ch(x))(2) is formed by edge-sharing PtBi6 octahedra. Magnetization, electrical resistivity, and specific heat measurements confirmed the emergence of superconductivity at higher temperatures in Pt(Bi1-xSex)(2) and Pt(Bi1-xTex)(2), which are located near the polar-nonpolar structural phase boundary.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2022)
Article
Physics, Multidisciplinary
Taiki Ogawa, Kaoru Manabe, Tetsuya Takeuchi, Takanori Kida, Haruhiko Kuroe, Masayuki Hagiwara, Jun Goryo, Tadashi Adachi, Kazutaka Kudo
Summary: This study reports the synthesis and characterization of a solid solution of BaPtAs and BaPtSb. The researchers found that the superconducting transition temperature of the solid solution showed a non-monotonic dependence on the Sb content.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
(2022)
Article
Chemistry, Physical
G. Tomassucci, L. Tortora, G. M. Pugliese, F. Stramaglia, L. Simonelli, C. Marini, K. Terashima, T. Wakita, S. Ayukawa, T. Yokoya, K. Kudo, M. Nohara, T. Mizokawa, N. L. Saini
Summary: We used extended X-ray absorption fine structure (EXAFS) and X-ray emission spectroscopy (XES) to investigate the local structure and local iron magnetic moments of (Li1-xFex)OHFeSe (x ~0.2) superconductors. The local structure, studied by Fe K-edge EXAFS measurements, was found to be inhomogeneous with different Fe-Se bond lengths. The inhomogeneous phase showed peculiar temperature dependence with lattice anomalies at the critical temperature Tc (36 K) and spin density wave (SDW) transition temperature TN (130 K). Additionally, Fe K beta XES showed that iron was in a low spin state with the local Fe magnetic moment evolving anomalously with temperature. The results not only provided quantitative measurement of the local structure of (Li1-xFex)OHFeSe, but also offered further evidence for the vital role of coupled electronic, lattice, and magnetic degrees of freedom in iron-based superconductors.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Quantum Science & Technology
Takashi Mizokawa, Alexei Barinov, Viktor Kandyba, Alessio Giampietri, Ryoya Matsumoto, Yohei Okamoto, Kou Takubo, Koji Miyamoto, Taichi Okuda, Sunseng Pyon, Hiroyuki Ishii, Kazutaka Kudo, Minoru Nohara, Naurang L. Saini
Summary: Solids undergoing symmetry breaking phase transitions often form domains of low symmetry phases with different sizes and shapes. This article presents an interesting example of a layered dichalcogenide with a triangular lattice, where symmetry breaking of electronic charge/orbital is accompanied by the formation of striped domains and exotic surface states with peculiar spin textures. The study provides insights into the interplay between symmetry breaking, surface electronic structure, and the spin state.
ADVANCED QUANTUM TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
K. Takubo, K. Yamamoto, Y. Hirata, H. Wadati, T. Mizokawa, R. Sutarto, F. He, K. Ishii, Y. Yamasaki, H. Nakao, Y. Murakami, G. Matsuo, H. Ishii, M. Kobayashi, K. Kudo, M. Nohara
Article
Materials Science, Multidisciplinary
K. Terashima, E. Paris, L. Simonelli, E. Salas-Colera, A. Puri, T. Wakita, Y. Yamada, S. Nakano, H. Idei, K. Kudo, M. Nohara, Y. Muraoka, T. Mizokawa, T. Yokoya, N. L. Saini
