Direct observation of the ground state of a 1/3 quantum magnetization plateau in SrMn${}_3$P${}_4$O${}_{14}$ using neutron diffraction measurements

Abstract

We can directly investigate the ground state in magnetization-plateau fields (plateau ground state) using neutron diffraction measurements. We performed neutron diffraction measurements on the spin-5/2 trimer substance SrMn${}_3$P${}_4$O${}_{14}$ in magnetization-plateau fields. The integrated intensities of magnetic reflections calculated using an expectation value of each spin in a plateau ground state of an isolated-trimer model agree well with those obtained experimentally in the magnetization-plateau fields. We succeeded in direct observation of a plateau ground state in SrMn${}_3$P${}_4$O${}_{14}$.

References in corpus (6)

• Magnetization plateaus in spin chains: ``Haldane gap'' for half-integer spins
• Magnetic Properties of the Spin-1/2 Ferromagnetic-Ferromagnetic-Antiferromagnetic Trimerized Heisenberg Chain:
• Magnetic excitations in the spin-trimer compounds Ca3Cu3-xNix(PO4)4 (x=0,1,2)
• Crystal and magnetic structures of the spin-trimer compounds Ca3 Cu3xNix (PO4)4 (x=0,1,2)
• Spiral magnetic structure in spin-5/2 frustrated trimerized chains in SrMn3P4O14
• Magnetic excitations in the spin-5/2 antiferromagnetic trimer substance SrMn3P4O14