Bose-Einstein Condensation of Triplons in Ba3Cr2O8

Abstract

By performing heat capacity, magnetocaloric effect, torque magnetometry and force magnetometry measurements up to 33 T, we have mapped out the T-H phase diagram of the S = 1/2 spin dimer compound Ba3Cr2O8. We found evidence for field-induced magnetic order between Hc1 = 12.52(2) T and Hc2 = 23.65(5) T, with the maximum transition temperature Tc = 2.7 K at H = 18 T. The lower transition can likely be described by Bose-Einstein condensation of triplons theory, and this is consistent with the absence of any magnetization plateaus in our magnetic torque and force measurements. In contrast, the nature of the upper phase transition appears to be quite different as our measurements suggest that this transition is actually first order.

4 pages, 4 figures, Accepted by PRB

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Cited by in corpus (36)

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• Adiabatic measurements of magneto-caloric effects in pulsed high magnetic fields up to 55 T
• Magnetic excitations of the gapped quantum spin dimer antiferromagnet Sr${}_3$Cr${}_2$O${}_8$
• Magnetic field-induced phase transitions in a weakly coupled s = 1/2 quantum spin dimer system Ba${}_3$Cr${}_2$O${}_8$
• Novel Strongly Spin-Orbit Coupled Quantum Dimer Magnet: Yb${}_2$Si${}_2$O${}_7$
• Experimental realization of field-induced XY and Ising ground states in a quasi-2D S=1/2 Heisenberg antiferromagnet
• Macroscopic properties of triplon Bose-Einstein condensates
• Particle-hole symmetry breaking in a spin-dimer system TlCuCl${}_3$ observed at 100 T
• High-field instability of field-induced triplon Bose-Einstein condensate
• Bose-Einstein condensation of triplons close to the quantum critical point in the quasi-one-dimensional spin-$1/2$ antiferromagnet NaVOPO${}_4$
• Revealing three-dimensional quantum criticality by Sr-substitution in Han Purple
• Field-induced double dome and Bose-Einstein condensation in the crossing quantum spin chain system AgVOAsO4
• Magnon Supersolid and Anomalous Hysteresis in Spin Dimers on a Triangular Lattice
• High-field spectroscopy of singlet-triplet transitions in the spin-dimer systems Sr3Cr2O8 and Ba3Cr2O8
• Electron spin resonance and exchange paths in the orthorhombic dimer system Sr2VO4
• Bose-Einstein condensation of triplons in the S=1 tetramer antiferromagnet K2Ni2(MoO4)3: A compound close to quantum critical point
• Theory of Magnetic Field-Induced Bose-Einstein Condensation of Triplons in Ba3Cr2O8
• Infrared phonons and specific heat in Ba3Cr2O8
• Two types of alternating spin-$\frac{1}{2}$ chains and their field-induced transitions in $\epsilon$-LiVOPO${}_4$
• Irreversible Heating Measurement with Microsecond Pulse Magnet: Example of the alpha-theta Phase Transition of Solid Oxygen
• Bose-Einstein condensation in honeycomb dimer magnets and $\mathrm{Y}{\mathrm{b}}_2\mathrm{S}{\mathrm{i}}_2{\mathrm{O}}_7$
• Structural and magnetic properties in the quantum S=1/2 dimer systems Ba3(Cr1-xVx)2O8 with site disorder
• Structural and magnetic properties of spin-$1/2$ dimer compound Cu${}_2$(IPA)${}_2$(DMF)(H${}_2$O) with a large spin gap
• Quasi-one-dimensional Bose-Einstein Condensation in the Spin-1/2 Ferromagnetic-leg Ladder 3-I-V
• Influence of disorder on the structural phase transition and magnetic interactions in Ba${}_{3-x}$Sr${}_x$Cr${}_2$O${}_8$
• Theory of field-induced quantum phase transition in spin dimer system Ba${}_3$Cr${}_2$O${}_8$
• The $S=1$ dimer system K${}_2$Ni(MoO${}_4$)${}_2$: a candidate for magnon Bose-Einstein condensation
• Tuning the critical magnetic field of the triplon Bose-Einstein condensation in Ba${}_{3-x}$Sr${}_x$Cr${}_2$O${}_8$
• Anomalous magnetic exchange in a dimerized quantum-magnet composed of unlike spin species
• Neutron diffraction of field-induced magnon condensation in the spin-dimerized antiferromagnet Sr${}_3$Cr${}_2$O${}_8$
• Entanglement of condensed magnons via momentum-space fragmentation
• Single crystal growth and study of the magnetic properties of the mixed spin-dimer system Ba${}_{3-x}$Sr${}_x$Cr${}_2$O${}_8$
• Investigating field-induced magnetic order in Han Purple by neutron scattering up to 25.9 T
• Possible Bose-Einstein condensation of magnons in a S = 5/2 honeycomb lattice