A Mossbauer study of field-induced ordering in RbFeCl<sub>3</sub>and CsFeCl<sub>3</sub>

Baines, J.A.; Johnson, C. E.; Thomas, M.F.

doi:10.1088/0022-3719/16/18/027

Cited by 13 publications

(5 citation statements)

References 9 publications

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“…With increasing magnetic field, T N increases as indicated by arrows. These results are consistent with previous reports [35][36][37][38][39]41] except that we could only detect a single phase transition instead of three successive phase transitions observed in a previous specific heat study [35]. We do not yet have a plausible explanation for the difference.…”

Section: Resultssupporting

confidence: 92%

“…Unlike the case of the spin dimer system, the gapped ground state originates from competition between the large easy-plane single ion anisotropy D(s z ) 2 and the exchange interactions. Field-induced AF ordering with H c has been confirmed in several experiments in fields between ∼ 4 T and ∼ 11 T at LTs below 2.6 K [35][36][37][38][39]. Neutron scattering experiments have revealed that the ground-state spin configuration is probably a 120…”

Section: +mentioning

confidence: 73%

“…Field-induced AF ordering with H c has been confirmed in several experiments in fields between ∼ 4 T and ∼ 11 T at LTs below 2.6 K [35][36][37][38][39]. Neutron scattering experiments have revealed that the ground-state spin configuration is probably a 120 • structure with the wave vector q ≈ (1/3,1/3,0) characteristic of triangular-lattice antiferromagnets [39].…”

Section: Introductionmentioning

confidence: 74%

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Magnetic-field- and pressure-induced quantum phase transition inCsFeCl3proved via magnetization measurements

Kurita

Tanaka

2016

Phys. Rev. B

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We have performed magnetization measurements of the gapped quantum magnet CsFeCl3 at temperatures (T ) down to 0.5 K at ambient pressure and down to 1.8 K at hydrostatic pressures (P ) of up to 1.5 GPa. The lower-field (H) phase boundary of the field-induced ordered phase at ambient pressure is found to follow the power-law behavior expressed by the formula HN(T ) − Hc ∝ T φ N . The application of pressure extends the phase boundary to both a lower field and higher temperature. Above the critical pressure Pc ∼ 0.9 GPa, the transition field HN associated with the excitation gap becomes zero, and a signature of the magnetic phase transition is found in the T -dependence of magnetization in a very low applied field. This suggests that CsFeCl3 exhibits a pressure-induced magnetic phase transition at Pc.

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Section: Resultssupporting

confidence: 92%

Section: +mentioning

confidence: 73%

Section: Introductionmentioning

confidence: 74%

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Magnetic-field- and pressure-induced quantum phase transition inCsFeCl3proved via magnetization measurements

Kurita

Tanaka

2016

Phys. Rev. B

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“…The transition to a magnetically ordered phase in an external magnetic field was detected by magnetization [226,227,207], specific heat [226], Mössbauer [228] and nuclear spin-lattice relaxation [207] measurements. At H c = 7.5 T the ordered state was observed at T < 2.6 K. Because measurements are necessarily made at nonzero temperature, LRO appears over a wide region of magnetic field around H c .…”

Section: Singlet-ground-state Magnetsmentioning

confidence: 99%

Review/Synthèse: Triangular antiferromagnets

Collins¹,

Petrenko²

1997

Can. J. Phys.

483

442

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In this article we review the effects of magnetic frustation in the stacked triangular lattice. Frustration increases the degeneracy of the ground state, giving rise to different physics. In particular it leads to unique phase diagrams with multicritical points and novel critical phenomena. We describe the confrontation of theory and experiment for a number of systems with differing magnetic Hamiltonians; Heisenberg, Heisenberg with easy-axis anisotropy, Heisenberg with easy-plane anisotropy, Ising and singlet ground state. Interestingly each leads to different magnetic properties and phase diagrams. We also describe the effects of ferromagnetic, rather than antiferromagnetic, stacking and of small distortions of the triangular lattice.

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“…Thus, RbFeBr3 and RbFeC1, show magnetic long-range order at 5.5 and 2.5 K respectively. The caesium salts, with larger unit cells and smaller exchange constants, show no magnetic long-range order down to 80 mK for CsFeCl, (work reported by D P E Dixon in 1981 and cited by Baines 1983) and 69mK for CsFeBr, (Visser 1988a). When a magnetic field is applied along the crystal c axis of CsFeC1, three-dimensional magnetic long-range order is observed (Knop et a1 1983) which is similar to that seen in RbFeC1, (Wada et a1 1982).…”

Section: Properties Of a F E X Magnetsmentioning

confidence: 97%

Magnetic ordering effects in the random mixed one-dimensional ferromagnet-antiferromagnet system RbFeCl_3-xBr_x

Harrison

Visser

1989

J. Phys.: Condens. Matter

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Elastic neutron scattering experiments were performed on single crystals of the solid solution RbFeCI,_,Br, (x = 0.03, 0.06, 0.15, 1.0, 2.56, 2.76, 2.85 and 2.94) to study the magnetic ordering behaviour and the magnetic phase diagram of this mixed pseudo-onedimensional ferromagnetic-antiferromagnetic system. Small amounts of dopant destroy the magnetic long-range order of the pure parent compounds, RbFeCI, and RbFeBr,. On the RbFeC1, side of the phase diagram the magnetic correlations appear finite for x as small as 0.03. The periodicities of these correlations are similar to those of the incommensurate and commensurate magneticphasesof pure RbFeCI,. On the RbFeBr, side of the phase diagram the ordering vector remains at the H point (Q = (4 4At an intermediate composition ( x = 1 .O) there are no detectable one-dimensional ferro-or antiferromagnetic correlations down to a temperature of 1.3 K.

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A Mossbauer study of field-induced ordering in RbFeCl₃and CsFeCl₃

Cited by 13 publications

References 9 publications

Magnetic-field- and pressure-induced quantum phase transition inCsFeCl3proved via magnetization measurements

Magnetic-field- and pressure-induced quantum phase transition inCsFeCl3proved via magnetization measurements

Review/Synthèse: Triangular antiferromagnets

Magnetic ordering effects in the random mixed one-dimensional ferromagnet-antiferromagnet system RbFeCl_3-xBr_x

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A Mossbauer study of field-induced ordering in RbFeCl3and CsFeCl3

Cited by 13 publications

References 9 publications

Magnetic-field- and pressure-induced quantum phase transition inCsFeCl3proved via magnetization measurements

Magnetic-field- and pressure-induced quantum phase transition inCsFeCl3proved via magnetization measurements

Review/Synthèse: Triangular antiferromagnets

Magnetic ordering effects in the random mixed one-dimensional ferromagnet-antiferromagnet system RbFeCl3-xBrx

Contact Info

Product

Resources

About

A Mossbauer study of field-induced ordering in RbFeCl₃and CsFeCl₃

Magnetic ordering effects in the random mixed one-dimensional ferromagnet-antiferromagnet system RbFeCl_3-xBr_x