26th Australian Institute of Physics Congress and the Australian and New Zealand Conference on Optics and Photonics

Session

AIP CMM: Magnetism

CMM

9 Dec 2026, 11:00

Belinda Hutchinson Building (The University of Sydney )

126. It’s not easy being green – a tale of frustration and extreme environments on the natural mineral clinoatacamite.

Kirrily Rule

09/12/2026, 11:00

AIP | Condensed Matter & Materials (CMM)

Invited talk

The natural mineral clinoatacamite, Cu2Cl(OH)3, has been discussed as a frustrated quantum spin system. Electronic structure calculations have shown that its monoclinic crystal symmetry supports a ground state magnetic structure where antiferromagnetic Kagome layers are coupled ferromagnetically [1]. A previous neutron diffraction study on deuterated clinoatacamite powder revealed magnetic...

722. Dipolar magnons in the stoichiometric antiferromagnet ErLiF4: progress to quantum transduction

Toby Hardcastle

09/12/2026, 11:30

AIP | Condensed Matter & Materials (CMM)

Contributed Oral

Efficient microwave-to-optical transduction is a requirement for long-range networks between quantum devices such as sensors and many quantum computers. Achieving the optical nonlinearities required for transduction can be realised with a three-wave mixing process with near-resonant collective enhancement in a concentrated salt with narrow linewidths[1]. Stoichiometric erbium lithium...

307. A general spin Hamiltonian for Rare Earth Orthochromites RCrO3

Shinichiro Yano (NSRRC)

09/12/2026, 11:45

AIP | Condensed Matter & Materials (CMM)

Contributed Oral

My focus is a general spin Hamiltonian for so-called orthochromites $R$CrO$_3$ ($R$ = rare earth, Sc, and Y). The $R$CrO$_3$ has received much interest as an electrode material, an interconnector for solid-state fuel cells, and a magnetocaloric effect for refrigeration. However, there is little understanding because of the availability of large single-crystal samples. We successfully obtained...

412. Using Inelastic Neutron Scattering for Studying Advanced Materials

Guochu Deng (Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organization)

09/12/2026, 12:00

AIP | Condensed Matter & Materials (CMM)

Contributed Oral

Inelastic neutron scattering (INS) is a powerful technique for investigating elementary excitations in condensed matter, including lattice dynamics, spin waves, and crystal electric fields. Traditionally, triple-axis spectrometers (TAS) are the premier instruments designed for these measurements. At the Australian Centre for Neutron Scattering (ACNS) within ANSTO, the thermal-neutron TAS...

303. Unveiling Short-Range Order in the Frustrated Phase of Clinoatacamite via Polarized Diffuse Neutron Scattering

Juliana Avtarovski (University of Wollongong)

09/12/2026, 12:15

AIP | Condensed Matter & Materials (CMM)

Contributed Oral

Clinoatacamite [Cu2Cl(OH)3] has long been a subject of intense interest in the study of frustrated quantum magnetism due to its distorted kagome lattice and complex magnetic phase diagram. Despite this interest, the nature of its magnetism remains partially inconclusive, particularly between 6.4 K and 18.1 K [1] where long-range order with propagation vector q_m= (-0.5, 0, 0.5) is present [2]....