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Willa Roland

Professeur-e HES Associé-e

Main skills

Physics

Energy modeling and simulation

Superconductivity

Materials science & technology

High Performance Computing

Analytic/Numeric/Statistical model

Phase transition and criticality

Main contract

Professeur-e HES Associé-e

Phone: +41 58 606 86 95

Desktop: ENP.23.N414

HES-SO Valais-Wallis - Haute Ecole d'Ingénierie
Rue de l'Industrie 23, 1950 Sion, CH

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2022

An electronic nematic liquid in BaNi2As2

Scientific paper

Y. Yao, Willa Roland, T. Lacmann, S.-M. Souliou, M. Frachet, K. Willa, M. Merz, F. Weber, C. Meingast, R. Heid, A.-A. Haghighirad, J. Schmalian, M. Le Tacon

Nature Communications, 2022 , vol. 13, no 4535

Link to the publication

Hessian characterization of the pinning landscape in a type-II superconductor

Scientific paper

Willa Roland, V.B. Geshkenbein, G. Blatter

Physical Review B, 2022 , vol. 105, no 144504

Link to the publication

A topological flux trap: Majorana bound states at screw dislocations

Scientific paper

S. Rex, Willa Roland

New Journal of Physics, 2022 , vol. 24, no 053057

Link to the publication

2021

Inhomogeneous time-reversal symmetry breaking in Sr2RuO4

Scientific paper

Willa Roland, M. Hecker, R.M. Fernandes, J. Schmalian

Physical Review B, 2021 , vol. 104, no 024511

Link to the publication

2020

Symmetry-mixed bound-state order

Scientific paper

Willa Roland

Physical Review B, 2020 , vol. 102, no 180503(R)

Link to the publication

Thermal creep induced by cooling a superconducting vortex lattice

Scientific paper

Willa Roland, J.A. Galvis, J. Benito-Llorens, E. Herrera, I. Guillamon, H. Suderow

Physical Review Research, 2020 , vol. 2, no 013125

Link to the publication

2019

Strongly fluctuating moments in the high-temperature magnetic superconductor RbEuFe4As4

Scientific paper

K. Willa, Willa Roland, J.-K. Bao, A.E. Koshelev, D.Y. Chung, M.G. Kanatzidis, W.-K. Kwok, U. Welp

Physical Review B, 2019 , vol. 99, no 180502(R)

Link to the publication

2018

Peak effect due to competing vortex ground states in superconductors with large inclusions

Scientific paper

Willa Roland, A.E. Koshelev, I.A. Sadovskyy, A. Glatz

Physical Review B, 2018 , vol. 98, no 054517

Link to the publication

Strong-pinning regimes by spherical inclusions in anisotropic type-II superconductors

Scientific paper

Willa Roland, A.E. Koshelev, I.A. Sadovskyy, A. Glatz

Superconductor Science and Technology, 2018 , vol. 31, no 014001

Link to the publication

Nanocalorimetric evidence for nematic superconductivity in the doped topological insulator Sr0.1Bi2Se3

Scientific paper

K. Willa, Willa Roland, K.W. Song, G.D. Gu, J.A. Schneeloch, R. Zhong, A.E. Koshelev, W.-K. Kwok, U. Welp

Physical Review B, 2018 , vol. 98, no 184509

Link to the publication

2016

Probing the pinning landscape in type-II superconductors via Campbell penetration depth

Scientific paper

Willa Roland, V.B. Geshkenbein, G Blatter

Physical Review B, 2016 , vol. 93, no 064515

Link to the publication

2022

Inhomogeneous strain causes time-reversal symmetry breaking in Sr2RuO4

Conference

Willa Roland

Quantum materials and devices at the nanoscale, 01.03.2022 - 01.03.2022, Madrid (Spain)

2019

Strong pinning theory: a review

Conference

Willa Roland

ISS 2019, 01.12.2019 - 01.12.2019, Kyoto (Japan)

Hessian character of pinning landscapes

Conference

Willa Roland

Vortex2019, 01.05.2019 - 01.05.2019, Antwerp (Belgium)

2018

Pinscape spectroscopy: Solving the inverse problem in vortex pinning

Conference

Willa Roland

M2S - HTSC, 01.08.2018 - 01.08.2018, Beijing (China)

Strong-pinning regimes by spherical inclusions in anisotropic type-II superconductors

Conference

Willa Roland

APS March Meeting, 01.03.2018 - 01.03.2018, Los Angeles (USA)

2017

Exploring strong pinning regimes with Ginzburg-Landau simulations

Conference

Willa Roland

Vortex2017, 01.05.2017 - 01.05.2017, Natal (Brazil)

Achievements