Ground-state selection in quantum pyrochlore magnets
نویسندگان
چکیده
منابع مشابه
Ground state selection under pressure in the quantum pyrochlore magnet Yb2Ti2O7
A quantum spin liquid is a state of matter characterized by quantum entanglement and the absence of any broken symmetry. In condensed matter, the frustrated rare-earth pyrochlore magnets Ho2Ti2O7 and Dy2Ti2O7, so-called spin ices, exhibit a classical spin liquid state with fractionalized thermal excitations (magnetic monopoles). Evidence for a quantum spin ice, in which the magnetic monopoles b...
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The spin ice materials, including Ho2Ti2O7 and Dy2Ti2O7, are rare-earth pyrochlore magnets which, at low temperatures, enter a constrained paramagnetic state with an emergent gauge freedom. Spin ices provide one of very few experimentally realized examples of fractionalization because their elementary excitations can be regarded as magnetic monopoles and, over some temperature range, spin ice m...
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R. Siddharthan,1 B. S. Shastry,1 A. P. Ramirez,2 A. Hayashi,3 R. J. Cava,3 and S. Rosenkranz4 1Department of Physics, Indian Institute of Science, Bangalore 560012, India 2Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, New Jersey 07974 3Chemistry Department, Princeton University, Princeton, New Jersey 08540 4Materials Science Division, Argonne National Laboratory, Arg...
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The recent identification of the dysprosium titanate compound Dy2T i2O7 as a “Spin-Ice”, i.e. the spin analog of regular entropic ice of Pauling, has created considerable excitement. The ability to manipulate spins using magnetic fields gives a unique advantage over regular ice in these systems, and has been used to study the recovery of entropy. Predicted magnetization plateaus have been obser...
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In order to gain insight into the possible Ground State of Quantized Einstein’s Gravity, we have devised a variational calculation of the energy of the quantum gravitational field in an open space, as measured by an asymptotic observer living in an asymptotically flat space-time. We find that for Quantum Gravity (QG) it is energetically favourable to perform its quantum fluctuations not upon fl...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations and Advances
سال: 2019
ISSN: 2053-2733
DOI: 10.1107/s2053273319095512