Pressure-Induced Magnetic Quantum Phase Transition in KCuCl3
نویسندگان
چکیده
منابع مشابه
Pressure-induced quantum phase transition in the spin-liquid TlCuCl3.
The condensation of magnetic quasiparticles into the nonmagnetic ground state has been used to explain novel magnetic ordering phenomena observed in quantum spin systems. We present neutron scattering results across the pressure-induced quantum phase transition and for the novel ordered phase of the magnetic insulator TlCuCl3, which are consistent with the theoretically predicted two degenerate...
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The zero-temperature quantum phase transition (QPT) is driven by quantum fluctuations, in contrast to the more familiar finite temperature transitions driven by thermal fluctuations. This paper demonstrates our work on two kinds of QPTs in two different materials, respectively. The first work focuses on the pressure-driven antiferromagnetic QPT in pure chromium which is a model system for study...
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Abstract TlCuCl3 is a quantum spin liquid of S = 1/2 Cu2+ dimers. Interdimer superexchange interactions give a three-dimensional magnon dispersion and a spin gap significantly smaller than the dimer coupling, which is closed by an applied hydrostatic pressure of approximately 2.5 kbar or by a magnetic field of 5.6 T, offering a unique opportunity to explore both the pressureand fieldinduced qua...
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Relatively little attention has been paid to pressureinduced phase transitions in the Group II halides in contrast to the volume of work on the Bl-B2 transition in the alkali halides and alkaline-earth oxides. However, recently the rutile to fluorite transition in MgFz has been the subject of a paper by Nga and Ong,’ in which they studied this transition by molecular dynamics simulation based o...
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ژورنال
عنوان ژورنال: Journal of the Physical Society of Japan
سال: 2007
ISSN: 0031-9015,1347-4073
DOI: 10.1143/jpsjs.76sa.162