633 citations · 2k across the 11 of their papers we have counts for
11 papers
Two Coupled Chains are Simpler than One: Field-induced Chirality in a Frustrated Quantum Spin Ladder
M. Pikulski, T. Shiroka, F. Casola +5
Although the frustrated spin chain (zigzag chain) is a Drosophila of frustrated magnetism, the understanding of a pair of coupled zigzag chains (frustrated spin ladder) in a magnet…
Imaging viscous flow of the Dirac fluid in graphene
Mark J. H. Ku, Tony X. Zhou, Qing Li +15
The electron-hole plasma in charge-neutral graphene is predicted to realize a quantum critical system whose transport features a universal hydrodynamic description, even at room te…
Probing condensed matter physics with magnetometry based on nitrogen-vacancy centres in diamond
Francesco Casola, Toeno van der Sar, Amir Yacoby
The magnetic fields generated by spins and currents provide a unique window into the physics of correlated-electron materials and devices. Proposed only a decade ago, magnetometry…
Control and Local Measurement of the Spin Chemical Potential in a Magnetic Insulator
Chunhui Du, Toeno Van der Sar, Tony X. Zhou +8
The spin chemical potential characterizes the tendency of spins to diffuse. Probing the spin chemical potential could provide insight into materials such as magnetic insulators and…
Imaging the Spin Texture of a Skyrmion Under Ambient Conditions Using an Atomic-Sized Sensor
Yuliya Dovzhenko, Francesco Casola, Sarah Schlotter +5
Magnetic skyrmions are two-dimensional non-collinear spin textures characterised by an integer topological number. They commonly crystallise at low temperatures in bulk noncentrosy…
NMR Technique for Determining the Depth of Shallow Nitrogen-Vacancy Centers in Diamond
Linh M. Pham, Stephen J. DeVience, Francesco Casola +10
We demonstrate a robust experimental method for determining the depth of individual shallow Nitrogen-Vacancy (NV) centers in diamond with nm uncertainty. We use a confocal…
Nanometre-scale probing of spin waves using single electron spins
Toeno van der Sar, Francesco Casola, Ronald Walsworth +1
Correlated-electron systems support a wealth of magnetic excitations, ranging from conventional spin waves to exotic fractional excitations in low-dimensional or geometrically-frus…
Nanoscale NMR Spectroscopy and Imaging of Multiple Nuclear Species
Stephen J. DeVience, Linh M. Pham, Igor Lovchinsky +10
Nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) are well-established techniques that provide valuable information in a diverse set of disciplines but are curr…
Impact of strong disorder on the static magnetic properties of the spin-chain compound BaCu2SiGeO7
T. Shiroka, F. Casola, W. Lorenz +3
The disordered quasi-1D magnet BaCu2SiGeO7 is considered as one of the best physical realizations of the random Heisenberg chain model, which features an irregular distribution of…
Phase diagram of low-dimensional antiferromagnets with competing order parameters: A Ginzburg-Landau-theory approach
V. N. Glazkov, F. Casola, H. -R. Ott +1
We present a detailed analysis of the phase diagram of antiferromagnets with competing exchange-driven and field-induced order parameters. By using the quasi-1D antiferromagnet BaC…
Distribution of NMR relaxations in a random Heisenberg chain
T. Shiroka, F. Casola, V. Glazkov +4
Nuclear magnetic resonance (NMR) measurements of the 29Si spin-lattice relaxation time T1 were used to probe the spin-1/2 random Heisenberg chain compound BaCu2(Si(1-x)Gex)2O7. Rem…