Dimer Physics in the Frustrated Cairo Pentagonal Antiferromagnet Bi2Fe4O9
نویسندگان
چکیده
منابع مشابه
Quantum Fluctuations in the Frustrated Antiferromagnet Sr2Cu3O4Cl2
Abstract Sr2Cu3O4Cl2 is an antiferromagnet consisting of weakly coupled CuO planes which comprise two weakly interacting antiferromagnetic subsystems, I and II, which order at respective temperatures TI ≈ 390K and TII ≈ 40K. Except asymptotically near the ordering temperature, these systems are good representations of the two-dimensional quantum spin 1/2 Heisenberg model. For T < TII there are ...
متن کاملAnomalous Magnetothermopower in a Metallic Frustrated Antiferromagnet.
We report the temperature T and magnetic field H dependence of the thermopower S of an itinerant triangular antiferromagnet PdCrO_{2} in high magnetic fields up to 32 T. In the paramagnetic phase, the zero-field thermopower is positive with a value typical of good metals with a high carrier density. In marked contrast to typical metals, however, S decreases rapidly with increasing magnetic fiel...
متن کاملCritical slowing down in the geometrically frustrated pyrochlore antiferromagnet Gd2Ti2O7
Longitudinal-field muon spin relaxation experiments have been carried out in the paramagnetic state of singlecrystal Gd2Ti2O7 just above the phase transition at Tm = 1.0 K. At high applied fields the exponential relaxation time T1 is proportional to field, whereas T1 saturates below a crossover field Bc that is ∼2.5 T at 1.5 K and decreases as Tm is approached. At low fields the relaxation rate...
متن کاملFirst order phase transition in the frustrated triangular antiferromagnet CsNiCl3.
By means of high-resolution ultrasonic velocity measurements, as a function of temperature and magnetic field, the nature of the different low temperatures magnetic phase transitions observed for the quasi-one-dimensional compound CsNiCl3 is established. Special attention has been devoted to the field-induced 120 degrees phase transition above the multicritical point in the H-T phase diagram wh...
متن کاملQuantum phase transition in the frustrated Heisenberg antiferromagnet.
Using the J1-J2 model, we present a description of quantum phase transition from Néel ordered to the spin-liquid state based on the modified spin wave theory. The general expression for the gap in the spectrum in the spin-liquid phase is given. PACS Numbers: 75.50.Ee, 75.10.Jm, 75.30.Kz, 75.10.-b Typeset using REVTEX
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2020
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.124.127202