Academic literature on the topic 'Quantum magnetisms'

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Journal articles on the topic "Quantum magnetisms"

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Stewart, A. M. "Gauge Invariant Magnetism." Australian Journal of Physics 50, no. 6 (1997): 1061. http://dx.doi.org/10.1071/p97024.

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An introduction is given to features of gauge invariance in classical and quantum mechanics that are of importance for magnetism in condensed matter systems. A version of quantum mechanics is described in which full electromagnetic gauge arbitrariness is displayed explicitly at every stage. The division of orbital magnetism into paramagnetism and diamagnetism is examined and it is shown that only by treating both of these on an equal footing can a gauge invariant treatment of magnetism be constructed.
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Osborne, Ian S. "Cooperative quantum magnetism." Science 361, no. 6404 (2018): 763.14–765. http://dx.doi.org/10.1126/science.361.6404.763-n.

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Freeman, Arthur J., and Kohji Nakamura. "Computational quantum magnetism: Role of noncollinear magnetism." Journal of Magnetism and Magnetic Materials 321, no. 7 (2009): 894–98. http://dx.doi.org/10.1016/j.jmmm.2008.11.107.

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Slot, M. R., Y. Maximenko, P. M. Haney, et al. "A quantum ruler for orbital magnetism in moiré quantum matter." Science 382, no. 6666 (2023): 81–87. http://dx.doi.org/10.1126/science.adf2040.

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For almost a century, magnetic oscillations have been a powerful “quantum ruler” for measuring Fermi surface topology. In this study, we used Landau-level spectroscopy to unravel the energy-resolved valley-contrasting orbital magnetism and large orbital magnetic susceptibility that contribute to the energies of Landau levels of twisted double-bilayer graphene. These orbital magnetism effects led to substantial deviations from the standard Onsager relation, which manifested as a breakdown in scaling of Landau-level orbits. These substantial magnetic responses emerged from the nontrivial quantum
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Sachdev, Subir. "Quantum magnetism and criticality." Nature Physics 4, no. 3 (2008): 173–85. http://dx.doi.org/10.1038/nphys894.

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Inosov, D. S. "Quantum magnetism in minerals." Advances in Physics 67, no. 3 (2018): 149–252. http://dx.doi.org/10.1080/00018732.2018.1571986.

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Blackburn, Elizabeth. "Magnetism, superconductors, quantum systems." Neutron News 24, no. 4 (2013): 6–7. http://dx.doi.org/10.1080/10448632.2013.831644.

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Castilla, G., S. Chakravarty, and V. J. Emery. "Quantum Magnetism of CuGeO3." Physical Review Letters 75, no. 9 (1995): 1823–26. http://dx.doi.org/10.1103/physrevlett.75.1823.

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Georgii, Robert, and Klaus-Dieter Liss. "Quantum Beams for New Aspects in Magnetic Materials and Magnetism." Quantum Beam Science 3, no. 4 (2019): 22. http://dx.doi.org/10.3390/qubs3040022.

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KUZEMSKY, A. L. "QUANTUM PROTECTORATE AND MICROSCOPIC MODELS OF MAGNETISM." International Journal of Modern Physics B 16, no. 05 (2002): 803–23. http://dx.doi.org/10.1142/s0217979202010002.

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Some physical implications involved in a new concept, termed the "quantum protectorate" (QP), are developed and discussed. This is done by considering the idea of quantum protectorate in the context of quantum theory of magnetism. It is suggested that the difficulties in the formulation of quantum theory of magnetism at the microscopic level, that are related to the choice of relevant models, can be understood better in the light of the QP concept. We argue that the difficulties in the formulation of adequate microscopic models of electron and magnetic properties of materials are intimately re
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Dissertations / Theses on the topic "Quantum magnetisms"

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Catalano, Alberto Giuseppe. "Understanding and exploiting non-local effects in quantum spin chains." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAF022.

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À l'aube de la seconde révolution quantique, comprendre et exploiter les phénomènes résultant de l'interaction entre la non-localité intrinsèque de la mécanique quantique et les interactions purement non-locales est d'une importance cruciale pour le développement de nouvelles technologies quantiques. Dans cette thèse, nous nous concentrerons principalement sur les effets non-locaux introduits par la frustration topologique (FT), une forme de frustration faible qui a été introduite pour la première fois dans le contexte des chaînes de spins quantiques antiferromagnétiques en appliquant les cond
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Joshi, Darshan Gajanan. "Magnetic quantum phase transitions: 1/d expansion, bond-operator theory, and coupled-dimer magnets." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-198634.

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In the study of strongly interacting condensed-matter systems controlled microscopic theories hold a key position. Spin-wave theory, large-N expansion, and $epsilon$-expansion are some of the few successful cornerstones. In this doctoral thesis work, we have developed a novel large-$d$ expansion method, $d$ being the spatial dimension, to study model Hamiltonians hosting a quantum phase transition between a paramagnet and a magnetically ordered phase. A highlight of this technique is that it can consistently describe the entire phase diagram of the above mentioned models, including the quantum
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Rezakhanlou, Karen. "Orbital magnetism and quantum chaos /." [S.l.] : [s.n.], 1995. http://library.epfl.ch/theses/?nr=1312.

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Brambleby, Jamie. "Quantum magnetism in coordination polymers." Thesis, University of Warwick, 2018. http://wrap.warwick.ac.uk/111284/.

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This thesis presents an experimental and theoretical examination of five polymeric quantum magnets. The first of these is Cu(pyrazine)(glycinate)ClO4, an exchange-coupled spin-dimer system that undergoes a powerful and continuous magnetocaloric effect (MCE) in a rapidly changing magnetic field H. The evolution of the sample temperature T with H must be accounted for in order to reconcile an apparent discrepancy between the results of magnetometry measurements performed in quasistatic and pulsed magnetic fields, and the MCE is likely to be an important consideration for pulsed-field experiments
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Aguilà, Avilés David. "Design, synthesis and study of coordination complexes for quantum computing." Doctoral thesis, Universitat de Barcelona, 2013. http://hdl.handle.net/10803/123544.

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This thesis presents different strategies for the design of molecular complexes with the requirements to be used as two-qubit quantum gates. The approaches followed towards the preparation of potential qubit systems have been carried out focusing on the synthesis of ligands with β-diketone coordination units, which are very versatile for the design of metallocluster assemblies. One of the main advantages of using this kind of ligands is that they can be easily prepared through simple Claisen condensation, providing different combinations and possibilities for the addition of big variety of don
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Steele, Andrew J. "Quantum magnetism probed with muon-spin relaxation." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:030d7e91-f38e-433f-9539-652b0f4996cc.

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This thesis presents the results of muon-spin relaxation (µ<sup>+</sup><abbr>SR</abbr>) studies into magnetic materials, and demonstrates how these results can be exploited to quantify the materials’ low moments and reduced dimensionality. Dipole-field simulations, traditionally used to estimate likely muon sites within a crystal structure, are described. A novel Bayesian approach is introduced which allows bounds to be extracted on magnetic moment sizes and magnetic structures—previously very difficult using µ<sup>+</sup><abbr>SR</abbr>—based on reasonable assumptions about positions in which
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Fiore, Mosca Dario. "Quantum magnetism in relativistic osmates from first principles." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17982/.

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The interplay between electron correlation, local distortions and Spin Orbit Coupling is one of the most attractive phenomena in condensed matter Physics and have stimulated much attention in the last decade. In Osmates double perovskites the coupling between electronic, structural and orbital degrees of freedom leads to the formation of an unconventional magnetic phase, whose precise origin and characteristics are still not understood. In particular strong Spin Orbit Coupling effect is believed to occur and have a crucial role in enhancing multipolar exchange interactions in a fashion s
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Bühler, Adam [Verfasser]. "Quantum Simulator for Spin-Orbital Magnetism / Adam Bühler." München : Verlag Dr. Hut, 2016. http://d-nb.info/1097818373/34.

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Lorenz, Wolfram. "On the Spin-Dynamics of the Quasi-One-Dimensional, Frustrated Quantum Magnet Li2CuO2." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-71010.

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Die magnetischen Eigenschaften von Li2CuO2 sind seit mehr als zwei Jahrzehnten Gegenstand theoretischen und experimentellen Interesses. Über die genaue Natur der magnetischen Wechselwirkungen in diesem Isolator konnte jedoch keine Einigkeit erzielt werden. Während das Material von Seiten theoretischer Untersuchungen als quasi-eindimensionaler Magnet mit starken ferromagnetischen Kopplungen entlang der Kette verstanden wurde, legten experimentelle Studien dominierende dreidimensionale Zwischenkettenkopplungen nahe. Im Rahmen dieser Dissertation werden auf der Grundlage von Untersuchungen des ma
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Morris, Richard. "Studies towards quantum magnonics." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:89784b64-de31-457f-b9b2-54125c862632.

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This thesis reports on recent results which pave the way for future experiments in the emerging field of quantum magnonics. Chapter 1 presents a brief outline of the field of magnonics, which provides the context in which quantum magnonics has begun to develop. Chapter 2 provides an introduction to the theory of spin waves, which is necessary to understand the experiments reported in the thesis. In Chapter 3, the experimental methods and materials used to carry out the investigations in the thesis are described. Chapter 4 describes the coupling of resonant magnon modes in a sphere of yttrium-i
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Books on the topic "Quantum magnetisms"

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Barbara, Bernard, Yosef Imry, G. Sawatzky, and P. C. E. Stamp, eds. Quantum Magnetism. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-8512-3.

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Schollwöck, Ulrich, Johannes Richter, Damian J. J. Farnell, and Raymod F. Bishop, eds. Quantum Magnetism. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/b96825.

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Bernard, Barbara, ed. Quantum magnetism. Springer, 2008.

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Yoshihito, Miyako, Takayama H. 1945-, and Miyashita S. 1954-, eds. Frontiers in magnetism: Metallic magnetism, glassy magnetism, quantum magnetism. Physical Society of Japan, 2000.

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White, Robert M. Quantum Theory of Magnetism. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-69025-2.

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Nolting, Wolfgang, and Anupuru Ramakanth. Quantum Theory of Magnetism. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-85416-6.

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Anupuru, Ramakanth, and SpringerLink (Online service), eds. Quantum theory of magnetism. Springer, 2009.

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Auerbach, Assa. Interacting Electrons and Quantum Magnetism. Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4612-0869-3.

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Auerbach, Assa. Interacting electrons and quantum magnetism. Springer-Verlag, 1994.

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Viola Kusminskiy, Silvia. Quantum Magnetism, Spin Waves, and Optical Cavities. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-13345-0.

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Book chapters on the topic "Quantum magnetisms"

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Parkinson, John B., and Damian J. J. Farnell. "Quantum Magnetism." In An Introduction to Quantum Spin Systems. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13290-2_11.

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Aeppli, Gabriel, and Philip Stamp. "Quantum Magnetism." In Handbook of Magnetism and Magnetic Materials. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63210-6_5.

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Aeppli, Gabriel, and Philip Stamp. "Quantum Magnetism." In Handbook of Magnetism and Magnetic Materials. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63101-7_5-1.

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Schnack, Jürgen. "Molecular magnetism." In Quantum Magnetism. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/bfb0119593.

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Mikeska, Hans-Jürgen, and Alexei K. Kolezhuk. "One-dimensional magnetism." In Quantum Magnetism. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/bfb0119591.

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Richter, Johannes, Jörg Schulenburg, and Andreas Honecker. "Quantum magnetism in two dimensions: From semi-classical Néel order to magnetic disorder." In Quantum Magnetism. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/bfb0119592.

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Ivanov, Nedko B., and Diptiman Sen. "Spin wave analysis of heisenberg magnets in restricted geometries." In Quantum Magnetism. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/bfb0119594.

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Laflorencie, Nicolas, and Didier Poilblanc. "Simulations of pure and doped low-dimensional spin-1/2 gapped systems." In Quantum Magnetism. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/bfb0119595.

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Cabra, Daniel C., and Pierre Pujol. "Field-theoretical methods in quantum magnetism." In Quantum Magnetism. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/bfb0119596.

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Farnell, Damian J. J., and Raymond F. Bishop. "The coupled cluster method applied to quantum magnetism." In Quantum Magnetism. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/bfb0119597.

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Conference papers on the topic "Quantum magnetisms"

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Gavryusev, Vladislav, Luca Guariento, Veronica Giardini, et al. "A New Programmable Quantum Simulator with Strontium Rydberg Atoms in Optical Tweezer Arrays." In Quantum 2.0. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/quantum.2024.qth2a.2.

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Ultra-cold interacting Rydberg Strontium atoms trapped in reconfigurable optical tweezers can simulate quantum magnetism and energy transport. I will present our setup and planned capabilities, including electric field control, 3D traps and single site addressing.
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Lei, Dangyuan. "Electromagnetic Asymmetry, Quantum Conductivity and Optical Magnetism for Nonlinear Plasmonics." In JSAP-Optica Joint Symposia. Optica Publishing Group, 2024. https://doi.org/10.1364/jsapo.2024.16a_b4_1.

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In general, symmetric plasmonic nanocavities, such as a pair of two closely spaced metal nanospheres of the same size and constituting material, support only symmetry-allowed bright modes under light illumination. Breaking the cavity symmetry introduces mode hybridization between its bright and dark modes, leading to new plasmon modes like Fano resonance and bound states in the continuum.
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Oliveira, Samuel L., and Stephen C. Rand. "Optical magnetism." In 2007 Quantum Electronics and Laser Science Conference. IEEE, 2007. http://dx.doi.org/10.1109/qels.2007.4431630.

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Kimel, A. V., A. Kirilyuk, and Th Rasing. "Femtosecond opto-magnetism." In 2007 Quantum Electronics and Laser Science Conference. IEEE, 2007. http://dx.doi.org/10.1109/qels.2007.4431810.

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Haas, Stephan, Adolfo Avella, and Ferdinando Mancini. "Quantum Magnetism, Nanomagnets and Entanglement." In LECTURES ON THE PHYSICS OF STRONGLY CORRELATED SYSTEMS XII: Twelfth Training Course in the Physics of Strongly Correlated Systems. AIP, 2008. http://dx.doi.org/10.1063/1.2940446.

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Degen, Christian, and Pol Welter. "Quantum microscopy of nanoscale magnetism." In Spintronics XIV, edited by Henri-Jean M. Drouhin, Jean-Eric Wegrowe, and Manijeh Razeghi. SPIE, 2021. http://dx.doi.org/10.1117/12.2597939.

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Fisher, William M., and Stephen C. Rand. "Parametric Optical Magnetism and the Complex Mathieu Equation." In International Quantum Electronics Conference. OSA, 2009. http://dx.doi.org/10.1364/iqec.2009.ituf3.

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Majedi, Hamed. "Nonlinear Optics and Optomagnetics in Quantum Materials." In Nonlinear Optics. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/nlo.2023.tu2b.5.

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The main physics of nonlinear optical properties of two-dimensional Dirac materials with a specific e xample of graphene is discussed. Our experimental work on characterization of the temporal and spectral properties of Kerr coefficient in graphene is presented. Theories of Optomagnetism in graphene and newly proposed microwave opto-magnetism in superconductors are elaborated.
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Venkataramana, Bonu, A. Das, Manas Sardar, S. Dhara, and A. K. Tyagi. "Intrinsic high magnetism in SnO2 quantum dots." In SOLID STATE PHYSICS: Proceedings of the 58th DAE Solid State Physics Symposium 2013. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4872649.

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Sakai, Tôru, and Kiyomi Okamoto. "Exotic Magnetism of the Quantum Spin Nanotubes." In Proceedings of the International Symposium on Science Explored by Ultra Slow Muon (USM2013). Journal of the Physical Society of Japan, 2014. http://dx.doi.org/10.7566/jpscp.2.010208.

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Reports on the topic "Quantum magnetisms"

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Scheie, Allen. Quantum magnetism, philosophy, and neutron scattering. Office of Scientific and Technical Information (OSTI), 2024. http://dx.doi.org/10.2172/2367470.

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Lee, Minhyea. Transport Studies of Quantum Magnetism: Physics and Methods. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1349030.

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Li, Yi, Hsiang-hsuan Hung, Zi Cai, Congjun Wu, Wei-Cheng Li, and Dan Arovas. Novel Quantum States with Exotic Spin Properties - Unconventional Generalization of Magnetism. Defense Technical Information Center, 2011. http://dx.doi.org/10.21236/ada582118.

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Sharpe, Aaron. Emergent Quantum Magnetism and Cryogenic Spin-Memory in Twisted Bilayer Graphene. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/2430210.

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