Field-Induced Bose-Einstein Condensation of a strongly correlated spin liquid in BaCuSi2O6

Jaime, M.; Correa, V. F.; Harrison, N.; Batista, C. D.; Kawashima, N.; Stern, Raivo; Uchinokura, K. (2005). Field-Induced Bose-Einstein Condensation of a strongly correlated spin liquid in BaCuSi2O6. Physica B: Condensed Matter, 359-361, 1369−1371.10.1016/j.physb.2005.01.423.
ajakirjaartikkel
Jaime, M.; Correa, V. F.; Harrison, N.; Batista, C. D.; Kawashima, N.; Stern, Raivo; Uchinokura, K.
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Field-Induced Bose-Einstein Condensation of a strongly correlated spin liquid in BaCuSi2O6
Field-Induced Bose-Einstein Condensation of a strongly correlated spin liquid in BaCuSi2O6
Physica B: Condensed Matter
0921-4526
359-361
2005
13691371
Ilmunud
1.1. Teadusartiklid, mis on kajastatud Web of Science andmebaasides Science Citation Index Expanded, Social Sciences Citation Index, Arts & Humanities Citation Index ja/või andmebaasis Scopus (v.a. kogumikud)
WOS

Viited terviktekstile

dx.doi.org/10.1016/j.physb.2005.01.423

Lisainfo

Low-temperature specific heat and magnetization experiments were performed in single-crystal samples of BaCuSi2O6 at high magnetic fields. These properties show changes upon entering a roughly parabolic region of the (H, T) phase diagram defined by critical magnetic fields H-cl = 23.5 T and H-c2 = 49 T, and a critical temperature T-c = 3.78 K. The specific heat measured at 37 T shows a lambda-shaped anomaly, and the magnetic susceptibility drops sharply on cooling. We used analytical methods and a directed-loop Monte Carlo algorithm to reproduce the experimental results, which are consistent with Bose-Einstein condensation of strongly correlated spin degrees of freedom.
specific heat; high magnetic fields; directed-loop Monte Carlo
ISI