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Tuning the disorder in superglasses.
- Source :
-
Physical review letters [Phys Rev Lett] 2012 Oct 12; Vol. 109 (15), pp. 157202. Date of Electronic Publication: 2012 Oct 09. - Publication Year :
- 2012
-
Abstract
- We study the interplay of superfluidity, glassy, and magnetic orders in the XXZ model with random Ising interactions on a three dimensional cubic lattice. In the classical limit, this model reduces to a ±J Edwards-Anderson Ising model with concentration p of ferromagnetic bonds, which hosts a glassy-ferromagnetic transition at a critical concentration p(c)(cl)~0.77. Our quantum Monte Carlo simulation results show that quantum fluctuations stabilize the coexistence of superfluidity and glassy order (superglass), and shift the (super)glassy-ferromagnetic transition to p(c)>p(c)(cl). In contrast, antiferromagnetic order coexists with superfluidity to form a supersolid, and the transition to the glassy phase occurs at a higher p.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 109
- Issue :
- 15
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 23102360
- Full Text :
- https://doi.org/10.1103/PhysRevLett.109.157202