141 citations · 385 across the 16 of their papers we have counts for
16 papers
Crystal Structure and Phonon Density of States of FeSi up to 120 GPa
Ravhi S Kumar, Han Liu, Quan Li +9
The strongly correlated material FeSi exhibits several unusual thermal, magnetic, and structural properties under varying pressure-temperature (P-T) conditions. It is a potential t…
Observation of Conventional Near Room Temperature Superconductivity in Carbonaceous Sulfur Hydride
Hiranya Pasan, Elliot Snider, Sasanka Munasinghe +21
The phenomenon of high temperature superconductivity, approaching room temperature, has been realized in a number of hydrogen-dominant alloy systems under high pressure conditions1…
Novel Valence Transition in Elemental Metal Europium around 80 GPa
Bijuan Chen, Mingfeng Tian, Jurong Zhang +20
Valence transition could induce structural, insulator-metal, nonmagnetic-magnetic and superconducting transitions in rare-earth metals and compounds, while the underlying physics r…
Lonsdaleite: The diamond with optimized bond lengths and enhanced hardness
Liuxiang Yang, Kah Chun Lau, Zhidan Zeng +12
Diamond is known as the hardest substance due to its ultra-strong tetrahedral sp3 carbon bonding framework. The only weak link is its cubic cleavage planes between (111) buckled ho…
Pressure induced collapse of magnetic order in jarosite
Ryan A. Klein, James P. S. Walsh, Samantha M. Clarke +12
We report a pressure-induced phase transition in the frustrated kagomé material jarosite at ~45 GPa, which leads to the disappearance of magnetic order. Using a suite of experiment…
Pressure-Driven Valence Increase and Metallization in Kondo Insulator CeBiPt
Daniel J. Campbell, Zachary E. Brubaker, Connor Roncaioli +8
We report the results of high pressure x-ray diffraction, x-ray absorption, and electrical transport measurements of Kondo insulator CeBiPt up to 42 GPa, the highest pr…
Pressure enhanced interplay among lattice, spin and charge in La2FeMnO6 mixed perovskite
Nana Li, Fengren Fan, Fei Sun +16
Spin crossover plays a central role in the structural instability, net magnetic moment modification, metallization, and even in superconductivity in corresponding materials. Most r…
Distinct pressure evolution of coupled nematic and magnetic order in FeSe
Anna E. Böhmer, Karunakar Kothapalli, Wageesha T. Jayasekara +13
FeSe, despite being the structurally simplest compound in the family of iron-based superconductors, shows an astoundingly rich interplay of physical phenomena including nematicity…
Spin Quenching Assisted by a Strongly Anisotropic Compression Behavior in MnP
Fei Han, Di Wang, Yonggang Wang +12
We studied the crystal structure and spin state of MnP under high pressure with synchrotron X-ray diffraction and X-ray emission spectroscopy. MnP has an exceedingly strong anisotr…
Strong cooperative coupling of pressure-induced magnetic order and nematicity in FeSe
K. Kothapalli, A. E. Böhmer, W. T. Jayasekara +10
A hallmark of the iron-based superconductors is the strong coupling between magnetic, structural and electronic degrees of freedom. However, a universal picture of the normal state…
Pressure-resistant intermediate valence in Kondo insulator SmB6
Nicholas P. Butch, Johnpierre Paglione, Paul Chow +4
Resonant x-ray emission spectroscopy (RXES) was used to determine the pressure dependence of the f-electron occupancy in the Kondo insulator SmB6. Applied pressure reduces the f-oc…
Nonharmonic Phonons in -Iron at High Temperatures
L. Mauger, M. S. Lucas, J. A. Muñoz +5
Phonon densities of states (DOS) of bcc -Fe were measured from room temperature through the 1044K Curie transition and the 1185K fcc -Fe phase transition using nuclear…
Pressure decoupled magnetic and structural transitions of the parent compound of iron based 122 superconductors BaFe2As2
Junjie Wu, Jungfu Lin, Xiancheng Wang +5
The recent discovery of iron ferropnictide superconductors has received intensive concerns on magnetic involved superconductors. Prominent features of ferropnictide superconductors…
Parallel suppression of superconductivity and Fe moment in the collapsed tetragonal phase of Ca0.67Sr0.33Fe2As2 under pressure
J. R. Jeffries, N. P. Butch, M. J. Lipp +8
Using non-resonant Fe K-beta x-ray emission spectroscopy, we reveal that Sr-doping of CaFe2As2 decouples the Fe moment from the volume collapse transition, yielding a collapsed-tet…
Quantum critical point and spin fluctuations in the lower-mantle ferropericlase
I. S. Lyubutin, V. V. Struzhkin, A. A. Mironovich +7
Ferropericlase, (Mg,Fe)O is one of the most abundant minerals of the Earth's lower mantle. The high-spin (HS) to low-spin (LS) transition in the Fe2+ ions can dramatically alter th…
High pressure evolution of FeO electronic structure revealed by X-ray absorption
Shibing Wang, Wendy L. Mao, Adam P. Sorini +9
We report the first high pressure measurement of the Fe K-edge in hematite (FeO) by X-ray absorption spectroscopy in partial fluorescence yield geometry. The pressure-induc…