Arbeitsgruppe Neue Materialien, Transport, Thermodynamik und Mesoskopie

Ausgewählte Veröffentlichungen


Calorimetric evidence of nodal gaps in the nematic superconductor FeSe

F. Hardy, M. He, L. Wang, Th. Wolf, P. Schweiss, M. Merz, M. Barth, P. Adelmann, R. Eder, A. A. Haghighirad, C. Meingast

Phys. Rev. B 99 (2019) 35157



Competing Electronic Phases near the Onset of Superconductivity in Hole-doped SrFe2As2

L. Wang, M. He, D. D. Scherer, F. Hardy, P. Schweiss, T. Wolf, M. Merz, B. M. Andersen, C. Meingast

J. Phys. Soc. Jpn. 88 (2019) 104710



Spectral Evidence for Emergent Order in Ba1−xNaxFe2As2

M. Yi, A. Frano, D. H. Lu, Y. He, M. Wang, B. Frandsen, A. F. Kemper, Y. Rong, Q. Si, L. Wang, M. He, F. Hardy, P. Schweiss, P. Adelmann, Th. Wolf, M. Hashimoto, S.-K. Mo, Z. Hussain, M. Le Tacon, C. S. Nelson, A. E. Böhmer, D.-H. Lee, Z.-X. Shen, C. Meingast, R. J. Birgeneau

Phys. Rev. Lett. 121 (2018) 127001



Dichotomy between in-plane magnetic susceptibility and resistivity anisotropies in extremely strained BaFe2As2

M. He, L. Wang, F. Ahn, F. Hardy, Th. Wolf, P. Adelmann, J. Schmalian, I. Eremin, C. Meingast

Nat. Commun. 8 (2017) 504



Nematic susceptibility of hole- and electron-doped BaFe2As2 iron-based superconductors

A. E. Böhmer, P. Burger, F. Hardy, T. Wolf, P. Schweiss, R. Fromknecht, M. Reinecker, W. Schranz, C. Meingast

Phys. Rev. Lett. 112 (2014) 47001



Scaling between magnetic and lattice fluctuations in iron-pnictide superconductors

R. M. Fernandes, A. E. B

Phys. Rev. Lett. 111 (2013) 137001



Novel electronic nematicity in heavily hole-doped iron pnictide superconductors

K. Ishida, M. Tsujii, S. Hosoi, Y. Mizukami, S. Ishida, A. Iyo, H. Eisaki, T. Wolf, K. Grube, H. L

PNAS 117 (2020) 6424



High-field moment polarization in the itinerant ferromagnet URhSi

W. Knafo, T. D. Matsuda, F. Hardy, D. Aoki, J. Flouquet

Phys. Rev. B 100 (2019) 94421



Quantum Critical Point in the Itinerant Ferromagnet Ni1?xRhx

C.-L. Huang, A. M. Hallas, K. Grube, S. Kuntz, B. Spie

Phys. Rev. Lett. 124 (2020) 117203



Magnetic and structural quantum phase transitions in CeCu6−xAux are independent

K. Grube, L. Pintschovius, F. Weber, J.-P. Castellan, S. Zaum, S. Kuntz, P. Schweiss, O. Stockert, S. Bachus, Y. Shimura, V. Fritsch, H. v. Loehneysen

Phys. Rev. Lett. 121 (2018) 87203



Raman scattering study of lattice and magnetic excitations in CrAs

K. Sen, Y. Yao, R. Heid, A. Omoumi, F. Hardy, K. Willa, M. Merz, A. A. Haghighirad, M. Le Tacon

Phys. Rev. B 100 (2019) 104301



Josephson vortex coupled to a flux qubit

K. G. Fedorov, A. V. Shcherbakova, R. Sch

Appl. Phys. Lett. 102 (2013) 132602



Thermally activated conductance in arrays of small Josephson junctions

J. Zimmer, N. Vogt, A. Fiebig, S. V. Syzranov, A. Lukashenko, R. Sch

Phys. Rev. B 88 (2013) 144506



Aluminum Hard Mask Technique for the Fabrication of High Quality Submicron Nb/Al-AlOx/Nb Josephson Junctions

Ch. Kaiser, J. M. Meckbach, K. S. Ilin, J. Lisenfeld, R. Sch

Supercond. Sci. Technol. 24 (2011) 35005



Suppression of superconductivity and enhanced critical field anisotropy in thin flakes of FeSe

L. Farrar, M. Bristow, A. A. Haghighirad, A. McCollam, S. J. Bending, A. I. Coldea

npj Quantum Mater. 5 (2020) 29



Quenched nematic criticality separating two superconducting domes in an iron-based superconductor under pressure

P. Reiss, D. Graf, A. A. Haghighirad, W. Knafo, L. Drigo, M. Bristow, A. J. Schofield, A. I. Coldea

Nat. Phys. (2019) 41567



Perovskite Solar Cells: Record Open-Circuit Voltage Wide-Bandgap Perovskite Solar Cells Utilizing 2D/3D Perovskite Heterostructure

S. Gharibzadeh, B. Abdollahi Nejand, M. Jakoby, T. Abzieher, D. Hauschild, S. Moghadamzadeh, J. A. Schwenzer, P. Brenner, R. Schmager, A. A. Haghighirad, L. Weinhardt, U. Lemmer, B. S. Richards, I. A. Howard, U. W. Paetzold

Adv. Energy Mater. 9 (2019) 1970079



Band hybridisation at the semimetal-semiconductor transition of Ta2NiSe5 enabled by mirror-symmetry breaking

M. D. Watson, I. Markovic, E. A. Morales, P. Le Fevre, M. Merz, A. A. Haghighirad, P. D. C. King

Phys. Rev. Research 2 (2020) 13236



Flux Separation Methods for Flux-Grown Single Crystals

Th. Wolf

Philos. Mag. 92 (2012) 2458


Neueste Veröffentlichungen

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Multiband description of the upper critical field of bulk FeSe
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High-sensitivity specific heat study of the low-temperature–high-field corner of the phase diagram of FeSe
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Charge density wave transitions, soft phonon, and possible electronic nematicity in BaNi₂(As₁₋ₓPₓ)₂
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Unconventional localization of electrons inside of a nematic electronic phase
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2022. Proceedings of the National Academy of Sciences, 119 (43), Art.: e2200405119. doi:10.1073/pnas.2200405119
Influence of the Pd–Si Ratio on the Valence Transition in EuPdSi Single Crystals
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2022. Crystal Growth and Design, 22 (9), 5399–5406. doi:10.1021/acs.cgd.2c00475
An electronic nematic liquid in BaNiAs
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2022. Nature Communications, 13 (1), Art.-Nr.: 4535. doi:10.1038/s41467-022-32112-7
Quantum critical fluctuations in an Fe-based superconductor
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2022. Communications Physics, 5 (1), Ar.-Nr.: 201. doi:10.1038/s42005-022-00981-5
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Magnetic domain walls of the van der Waals material Fe3GeTe2
Yang, H.-H.; Bansal, N.; Rüßmann, P.; Hoffmann, M.; Zhang, L.; Go, D.; Li, Q.; Haghighirad, A.; Sen, K.; Bluegel, S.; Le Tacon, M.; Mokrousov, Y.; Wulfhekel, W.
2022. 2D Materials, 9 (2), Art.Nr. 025022. doi:10.1088/2053-1583/ac5d0e
Observation of the non-linear Meissner effect
Wilcox, J. A.; Grant, M. J.; Malone, L.; Putzke, C.; Kaczorowski, D.; Wolf, T.; Hardy, F.; Meingast, C.; Analytis, J. G.; Chu, J.-H.; Fisher, I. R.; Carrington, A.
2022. Nature Communications, 13 (1), 1201. doi:10.1038/s41467-022-28790-y
Nematic response revealed by coherent phonon oscillations in BaFeAs
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2021. ACS applied materials & interfaces, 13 (39), 46488–46498. doi:10.1021/acsami.1c06457
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Strain tuning of nematicity and superconductivity in single crystals of FeSe
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Short-Range Nematic Fluctuations in Sr-NaFeAs Superconductors
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Muon spin rotation and infrared spectroscopy study of Ba₁−xNaxFe₂As₂
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2020. Physical review / B, 102 (15), Aritcle no: 155135. doi:10.1103/PhysRevB.102.155135
Soft elastic constants from phonon spectroscopy in hole-doped Ba(K,Na)FeAs and SrNaFeAs
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2020. Physical review / B, 102 (14), Art.Nr. 144526. doi:10.1103/PhysRevB.102.144526
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2020. Physical review / B, 102 (16), Art.-Nr.: 161109. doi:10.1103/PhysRevB.102.161109
Vortex-lattice melting and paramagnetic depairing in the nematic superconductor FeSe
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2020. Physical review research, 2 (3), 033319. doi:10.1103/PhysRevResearch.2.033319
Band engineering of Dirac cones in iron chalcogenides
Lauke, L.; Heid, R.; Merz, M.; Wolf, T.; Haghighirad, A.-A.; Schmalian, J.
2020. Physical review / B, 102 (5), Art.Nr. 054209. doi:10.1103/PhysRevB.102.054209
Electronic Nematicity in URu₂Si₂ Revisited
Wang, L.; He, M.; Hardy, F.; Aoki, D.; Willa, K.; Flouquet, J.; Meingast, C.
2020. Physical review letters, 124 (25), Article: 257601. doi:10.1103/PhysRevLett.124.257601
Ultrafast magnetic dynamics in insulating YBaCuO revealed by time resolved two-magnon Raman scattering
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2020. Nature Communications, 11 (1), Art.Nr. 2548. doi:10.1038/s41467-020-16275-9
Revealing the single electron pocket of FeSe in a single orthorhombic domain
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2020. Physical review / B, 101 (23), Article no: 235128. doi:10.1103/PhysRevB.101.235128
Rotation of reflectivity anisotropy due to uniaxial strain along [110] in the electron-doped Fe-based superconductor Ba(FeCo)As
Kwak, I.; Huh, S.; Lee, M.-C.; Kim, Y.; Lee, B.; Lee, Y. S.; Seo, C. W.; Park, B. C.; Wolf, T.; Kim, C.; Noh, T. W.; Kim, K. W.
2020. Physical review / B, 101 (16), Art.Nr. 165136. doi:10.1103/PhysRevB.101.165136
Suppression of superconductivity and enhanced critical field anisotropy in thin flakes of FeSe
Farrar, L. S.; Bristow, M.; Haghighirad, A. A.; McCollam, A.; Bending, S. J.; Coldea, A. I.
2020. npj quantum materials, 5, Article no: 29. doi:10.1038/s41535-020-0227-3
Anomalous high-magnetic field electronic state of the nematic superconductors FeSe₁₋ₓSₓ
Bristow, M.; Reiss, P.; Haghighirad, A. A.; Zajicek, Z.; Singh, S. J.; Wolf, T.; Graf, D.; Knafo, W.; McCollam, A.; Coldea, A. I.
2020. Physical review research, 2 (1), Art.-Nr.: 013309. doi:10.1103/PhysRevResearch.2.013309
Novel electronic nematicity in heavily hole-doped iron pnictide superconductors
Ishida, K.; Tsujii, M.; Hosoi, S.; Mizukami, Y.; Ishida, S.; Iyo, A.; Eisaki, H.; Wolf, T.; Grube, K.; Löhneysen, H.; Fernandes, R. M.; Shibauchi, T.
2020. Proceedings of the National Academy of Sciences of the United States of America, 117 (12), 6424–6429. doi:10.1073/pnas.1909172117
Quantum Critical Point in the Itinerant Ferromagnet Ni1−xRhx
Huang, C.-L.; Hallas, A. M.; Grube, K.; Kuntz, S.; Spieß, B.; Bayliff, K.; Besara, T.; Siegrist, T.; Cai, Y.; Beare, J.; Luke, G. M.; Morosan, E.
2020. Physical review letters, 124 (11), 117203. doi:10.1103/PhysRevLett.124.117203
Band hybridization at the semimetal-semiconductor transition of Ta 2NiSe 5 enabled by mirror-symmetry breaking
Watson, M. D.; Marković, I.; Morales, E. A.; Le Fèvre, P.; Merz, M.; Haghighirad, A. A.; King, P. D. C.
2020. Physical review research, 2 (1), Article no: 013236. doi:10.1103/PhysRevResearch.2.013236
Radiation Enhancement of Superconducting Critical Temperature of Fe-based HTSCs
Sahu, K. R.; Mishra, A. K.; Sanyal, D.; Wolf, T.; Banerjee, A.; Ganesan, V.; De, U.
2020. International Journal of Advanced Science and Engeneering, 6 (S2), 11–17. doi:10.29294/IJASE.6.S2.2020.11-17
Nematic Fluctuations in Optimally Doped BaFe1.87Co0.13As2 Observed in Photoinduced Reflectivity Change
Lee, Y.; Kwak, I.; Lee, M.-C.; Seo, C.; Kim, Y.; Wolf, T.; Noh, T.; Kim, K.
2020. Physica status solidi / Rapid research letters, 14 (3), Art. Nr.: 1900584. doi:10.1002/pssr.201900584
Nematic Correlation Length in Iron-Based Superconductors Probed by Inelastic X-Ray Scattering
Merritt, A. M.; Weber, F.; Castellan, J.-P.; Wolf, T.; Ishikawa, D.; Said, A. H.; Alatas, A.; Fernandes, R. M.; Baron, A. Q. R.; Reznik, D.
2020. Physical review letters, 124 (15), Art.-Nr.: 157001. doi:10.1103/PhysRevLett.124.157001
Unconventional Hund Metal in a Weak Itinerant Ferromagnet
Chen, X.; Krivenko, I.; Stone, M. B.; Kolesnikov, A. I.; Wolf, T.; Reznik, D.; Bedell, K. S.; Lechermann, F.; Wilson, S. D.
2020. Nature Communications, 11, Article: 3076. doi:10.1038/s41467-020-16868-4
Robust Perpendicular Skyrmions and their Surface-Confinement
Zhang, S.; Burn, D. M.; Jaouen, N.; Chauleau, J.-Y.; Haghighirad, A. A.; Liu, Y.; Wang, W.; Laan, G. van der; Hesjedal, T.
2020. Nano letters, 20 (2), 1428–1432. doi:10.1021/acs.nanolett.9b05141
Quenched nematic criticality and two superconducting domes in an iron-based superconductor
Reiss, P.; Graf, D.; Haghighirad, A. A.; Knafo, W.; Drigo, L.; Bristow, M.; Schofield, A. J.; Coldea, A. I.
2020. Nature physics, 16, 89–94. doi:10.1038/s41567-019-0694-2