activity
20022021
most citedUnconventional sign-reversing superconductivity in LaFeAsO_(1-x)F_x

2.5k citations · 6.4k across the 34 of their papers we have counts for

collaborators

34 papers

cond-mat.mtrl-sci2021★ 353 cited

Prediction of unconventional magnetism in doped FeSb2

I. I. Mazin, K. Koepernik, M. D. Johannes +2

It is commonly believed that in typical collinear antiferromagnets, with no net magnetization, the energy bands are spin-(Kramers-degenerate. The opposite case is usually associate…

cond-mat.str-el2021★ 20 cited

-electron hybridised metallic Fermi surface in magnetic field-induced metallic YbB

H. Liu, A. J. Hickey, M. Hartstein +15

The nature of the Fermi surface observed in the recently discovered family of unconventional insulators starting with SmB and subsequently YbB is a subject of intense in…

cond-mat.mtrl-sci2018★ 52 cited

Defect physics in complex energy materials

Khang Hoang, M D Johannes

Understanding the physics of structurally and chemically complex transition-metal oxide and polyanionic materials such as those used for battery electrodes is challenging, even at…

cond-mat.str-el2018★ 52 cited

Fermi surfaces in Kondo insulators

Hsu Liu, Mate Hartstein, Gregory J. Wallace +6

We report magnetic quantum oscillations measured using torque magnetisation in the Kondo insulator YbB and discuss the potential origin of the underlying Fermi surface. Obse…

cond-mat.str-el2015★ 284 cited

Unconventional Fermi surface in an insulating state

B. S. Tan, Y. -T. Hsu, B. Zeng +13

Insulators occur in more than one guise, a recent finding was a class of topological insulators, which host a conducting surface juxtaposed with an insulating bulk. Here we report…

cond-mat.supr-con2014★ 245 cited

What superconducts in sulfur hydrides under pressure, and why

N. Bernstein, C. S. Hellberg, M. D. Johannes +2

The recent discovery of superconductivity at 190~K in highly compressed HS is spectacular not only because it sets a record high critical temperature, but because it does so…