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papers

Publications (8)

cond-mat.str-el2014

Field tunable spin density wave phases in Sr3Ru2O7

C. Lester, S. Ramos, R. S. Perry +7

The conduction electrons in a metal experience competing interactions with each other and the atomic nuclei. This competition can lead to many types of magnetic order in metals. Fo…

cond-mat.supr-con2010

Dispersive Spin Fluctuations in the near optimally-doped superconductor Ba(Fe1-xCox)2As2 ( $x$ =0.065)

C. Lester, Jiun-Haw Chu, J. G. Analytis +3

Inelastic neutron scattering is used to probe the collective spin excitations of the near optimally-doped superconductor Ba(Fe1-xCox)2As2 ( $x$ =0.065). Previous measurements on the…

cond-mat.supr-con2011

A polarized neutron diffraction study of the field-induced magnetization in the normal and superconducting states of Ba(Fe1-xCox)2As2 (x=0.65)

C. Lester, Jiun-Haw Chu, J. G. Analytis +3

We use polarised neutron diffraction to study the induced magnetization density of near optimally doped Ba(Fe0.935Co0.065)2As2 (T_C=24 K) as a function of magnetic field (1<H<9 T)…

cond-mat.str-el2021

Magnetic-field-controlled spin fluctuations and quantum criticality in Sr3Ru2O7

C. Lester, S. Ramos, R. S. Perry +8

When the transition temperature of a continuous phase transition is tuned to absolute zero, new ordered phases and physical behaviour emerge in the vicinity of the resulting quantu…

cond-mat.supr-con2009

A neutron scattering study of the interplay between structure and magnetism in Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$

C. Lester, Jiun-Haw Chu, J. G. Analytis +6

Single crystal neutron diffraction is used to investigate the magnetic and structural phase diagram of the electron doped superconductor Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$ . Heat capaci…

cond-mat.supr-con2012

Polarized neutron scattering studies of magnetic excitations in electron-overdoped superconducting BaFe $_{1.85}$ Ni $_{0.15}$ As $_{2}$

Mengshu Liu, C. Lester, Jiri Kulda +5

We use polarized inelastic neutron scattering to study low-energy spin excitations and their spatial anisotropy in electron-overdoped superconducting BaFe $_{1.85}$ Ni $_{0.15}$ As$_{2…

cond-mat.supr-con2016

Critical Doping for the Onset of Fermi-Surface Reconstruction by Charge-Density-Wave Order in the Cuprate Superconductor La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$

S. Badoux, S. A. A. Afshar, B. Michon +11

The Seebeck coefficient $S$ of the cuprate superconductor La $_{2 - x}$ Sr $_{x}$ CuO $_{4}$ (LSCO) was measured in magnetic fields large enough to access the normal state at low temp…

cond-mat.supr-con2014

Charge density wave fluctuations in La2-xSrxCuO4 and their competition with superconductivity

T. P. Croft, C. Lester, M. S. Senn +2

We report hard (14 keV) x-ray diffraction measurements on three compositions (x=0.11,0.12,0.13) of the high-temperature superconductor La2-xSrxCuO4. All samples show charge-density…