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Spin dynamics in Sn-doped Er2Ti2-xSnxO7: probing the putative quantum critica...
The frustrated pyrochlore Er2Ti2O7 is a rare example of a magnetic system in which quantum fluctuations are capable of selecting a unique ground state out of the macroscopically... -
Spin dynamics of the zigzag pseudospin-1/2 quantum chain compound PrTiNbO6
One-dimensional (1D) S = 1/2 spin chains are a subject of long-standing interest, because conventional long-range ordering can be prevented and novel Luttinger-liquid phase may... -
Possibility of spin liquid state in Co substituted FeSi
Quantum spin liquid (QSL) is an ordered spin state which has been destroyed by quantum fluctuations at low temperatures. Low energy excitations of spin liquids are charge... -
Completing the phase diagram of a 2D molecular antiferromagnet
Low-dimensional quantum magnetism continues to be of great theoretical and experimental interest as reduced dimensionality supports strong quantum fluctuations which can result... -
Time reversal symmetry breaking in superconducting PrOs4Sb12 and its alloys
In 2005 we carried out muon spin relaxation (muSR) experiments in Pr(Os1-xRux)4Sb12 alloys at KEK, Tsukuba, Japan, to investigate the time-reversal symmetry breaking found in... -
Low Temperature Properties of a Uniform S=1/2 Triangular Lattice System
It is proposed to use TF muSR to study the low temperature, low field part of the phase diagram of Ba3CuSb2O9, a system with a uniform triangular lattice of S=1/2 Cu ions that... -
Two Band Behaviour of the Superconductivity of Lu2Fe3Si5
RE2Fe3Si5 are unusual superconducting systems, with coexistence of magnetism on the RE site with superconductivity ( the Fe does not support a magnetic moment). Of particular... -
Spin glass behaviour in the disorder-free geometrically frustrated magnet Yb2...
Our susceptibility studies of the frustrated magnet Yb2Sn2O7 has revealed a spin glass transition of the Yb3+ magnetic lattice at T_g = 140 mK. To our knowledge, this... -
New BiCh2-based layered superconductor La1-xCexOBiSSe: A puzzling system in c...
Layered superconductors have been attracted substantial attention since the discovery of the cuprate and Fe-based high-Tc superconductors due to the diversity in their crystal... -
Frustration-stabilized skyrmions in centrosymmetric compounds
Skyrmions are chiral magnetic spin textures that exist in a variety of different magnetic materials. Skyrmions are usually stabilized in noncentrosymmetric chiral materials by... -
Quantum Spin Liquid in a triangular rare-earth based magnet
The rise of quantum materials observed in the past decades has been a source of great excitement for condensed matter scientists, with the flourishing of new concepts and... -
Spin dynamics in the quantum spin ice state of Yb2Ti2O7
We propose to carry out a muSR study of the spin dynamics in two single crystal samples of Yb2Ti2O7. Both samples are notionally stoichiometric but they have been prepared using...
