Faculty Profiles - JÄCK Berthold | The Hong Kong University of Science and Technology

Berthold JÄCK
澤柏澔

PhD in Physics
Swiss Federal Institute of Technology, Lausanne (EPFL), 2015

Assistant Professor
Department of Physics

Google Scholar

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ORCID

0000-0003-3826-0855

Scopus ID

56442207500

Research Interest

Condensed matter physics
Microscopy
Topological phases and topological materials
Strongly correlated materials
Disordered materials

Publications

2022 2

Evidence for a monolayer excitonic insulator

Nature Physics, v. 18, (1), January 2022, p. 87-93
Jia, Yanyu; Wang, Pengjie; Chiu, Chen-Li; Song, Zhida; Yu, Guo; Jaeck, Berthold; Lei, Shiming; Klemenz, Sebastian; Cevallos, Alexandre F.; Onyszczak, Michael; Fishchenko, Nadezhda; Liu, Xiaomeng; Farahi, Gelareh; Xie, Fang; Xu, Yuanfeng; Watanabe, Kenji; Taniguchi, Takeshi; Bernevig, B. Andrei; Cava, Robert J.; Schoop, Leslie M.; Yazdani, Ali; Wu, Sanfeng
Article

Evidence for isotropic s-wave superconductivity in high-entropy alloys

Scientific Reports, v. 12, (1), July 2022, article number 12773
Leung, Ka Wun Casey; Zhang, Xiaofu; von Rohr, Fabian; Lortz, Rolf Walter; Jaeck, Berthold
Article

2021 5

Detecting And Distinguishing Majorana Zero Modes With The Scanning Tunnelling Microscope

Nature Reviews Physics, v. 3, (8), August 2021, p. 541-554
Jaeck, Berthold; Xie, Yonglong; Yazdani, Ali
Article

Microscopic relaxation channels in materials for superconducting qubits

Communications Materials, v. 2, (1), July 2021, article number 72
Premkumar, Anjali; Weiland, Conan; Hwang, Sooyeon; Jaeck, Berthold; Place, Alexander P.M.; Waluyo, Iradwikanari; Hunt, Adrian; Bisogni, Valentina; Pellicari, Jonathan; Barbour, Andi; Miller, Mike S.; Russo, Paola; Camino, Fernando; Kisslinger, Kim; Tong, Xiao; Hybertsen, Mark. S.; Houck, Andrew A.; Jarrige, Ignacio
Article

New material platform for superconducting transmon qubits with coherence times exceeding 0.3 milliseconds

Nature Communications, v. 12, March 2021, article number 1779
Place, Alexander P.M.; Rpdgers, Lila V.H.; Mundada, Pranav; Smitham, Basil M.; Fitzpatrick, Mattias; Leng, Zhaoqi; Premkumar, Anjali; Bryon, Jacob; Vrajitorea, Andrei; Sussman, Sara; Cheng, Guangming; Madhavan, Trisha; Babla, Harshvardhan K.; Le, Xuan Hoang; Gang, Youqi; Jaeck, Berthold; Gyenis, Andras; Yao, Nan; Cava, Robert J.; De leon, Nathalie P.; Houck, Andrew A.
Article

Visualizing the multifractal wave functions of a disordered two-dimensional electron gas

Physical Review Research, v. 3, (1), Janaury-March 2021, article number 013022
Jaeck, Berthold; Zinser, Fabian; Konig, Elio J.; Wissing, Sune N.P.; Schmidt, Anke B.; Donath, Markus; Kern, Klaus; Ast, Christine R.
Article

New material platform for superconducting transmon qubits with coherence times exceeding 0.3 milliseconds

Place, Alexander; Rodgers, Lila; Dutta, Aveek; Mundada, Pranav; Smitham, Basil; Fitzpatrick, Mattias V.; Leng, Zhaoqi; Premkumar, Anjali; Bryon, Jacob Elvin; Sussman, Sara; Cheng, Guangming; Madhavan, Trisha N.; Babla, Harshvardhan; Jaeck, Berthold; Gyenis, Andras; Yao, Nan; Cava, Robert; De Leon, Nathalie; Houck, Andrew
Conference paper

2020 2

Observation of backscattering induced by magnetism in a topological edge state

Proceedings of the National Academy of Sciences of the United States of America, v. 117, (28), July 2020, p. 16214-16218
Jaeck, Berthold; Xie, Yonglong; Bernevig, B. Andrei; Yazdani, Ali
Article

Tunneling Spectroscopy of Quantum Spin Liquids

Physical Review Letters, v. 125, (26), December 2020, article number 267206
Konig, Elio J.; Randeria, Mallika T.; Jaeck, Berthold
Article

2019 2

Observation of a Majorana zero mode in a topologically protected edge channel

Science, v. 346, (6447), June 2019, p. 1255-1259
Jaeck, Berthold; Xie, Yonglong; Li, Jian; Jeon, Sangjun; Bernevig, B. Andrei; Yazdani, Ali
Article

Spectroscopic signatures of many-body correlations in magic-angle twisted bilayer graphene

Nature, v. 572, (7767), August 2019, p. 101-105
Xie, Yonglong; Lian, Biao; Jaeck, Berthold; Liu, Xiaomeng; Chiu, Cheng-Li; Watanabe, Kenji; Taniguchi, Takashi; Bernevig, B. Andrei; Yazdani, Ali
Article

2017 1

Quantum Brownian Motion at Strong Dissipation Probed by Superconducting Tunnel Junctions

Physical Review Letters, v. 119, (14), October 2017, article number 147702
Jaeck, Berthold; Senkpiel, Jacob; Etzkorn, Markus; Ankerhold, Joachim; Ast, Christian R.; Kern, Klaus
Article

2016 2

Critical Josephson current in the dynamical Coulomb blockade regime

Physical Review B, v. 93, (2), January 2016, article number 020504
Jäck, Berthold; Eltschka, Matthias; Assig, Maximilian; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus
Article

Sensing the quantum limit in scanning tunnelling spectroscopy

Nature Communications, v. 7, October 2016, article number 13009
Ast, Christian R.; Jaeck, Berthold; Senkpiel, Jacob; Eltschka, Matthias; Etzkorn, Markus; Ankerhold, Joachim; Kern, Klaus
Article

2015 2

A nanoscale gigahertz source realized with Josephson scanning tunneling microscopy

Applied Physics Letters, v. 106, (1), January 2015, article number 013109
Jaeck, Berthold; Eltschka, Matthias; Assig, Maximilian; Hardock, Andreas; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus
Article

Superconducting scanning tunneling microscopy tips in a magnetic field: Geometry-controlled order of the phase transition

Applied Physics Letters, v. 107, (12), September 2015, article number 122601
Eltschka, Matthias; Jaeck, Berthold; Assig, Maximilian; Kondrashov, Oleg V.; Skvortsov, Mikhail A.; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus
Article

2014 1

Probing absolute spin polarization at the nanoscale

Nano Letters, v. 14, (12), December 2014, p. 7171-7174
Eltschka, Matthias; Jaeck, Berthold; Assig, Maximilian; Kondrashov, Oleg V.; Skvortsov, Mikhail A.; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus
Article

2012 1

Excitation dynamics in low band gap donor-acceptor copolymers and blends

Advanced Energy Materials, v. 2, (12), December 2012, p. 1477-1482
Gieseking, Björn; Jaeck, Berthold; Preis, Eduard; Jung, Stefan; Forster, Michael; Scherf, Ullrich; Deibel, Carsten; Dyakonov, Vladimir
Article

Article 2

Evidence for a monolayer excitonic insulator

Nature Physics, v. 18, (1), January 2022, p. 87-93
Jia, Yanyu; Wang, Pengjie; Chiu, Chen-Li; Song, Zhida; Yu, Guo; Jaeck, Berthold; Lei, Shiming; Klemenz, Sebastian; Cevallos, Alexandre F.; Onyszczak, Michael; Fishchenko, Nadezhda; Liu, Xiaomeng; Farahi, Gelareh; Xie, Fang; Xu, Yuanfeng; Watanabe, Kenji; Taniguchi, Takeshi; Bernevig, B. Andrei; Cava, Robert J.; Schoop, Leslie M.; Yazdani, Ali; Wu, Sanfeng

Evidence for isotropic s-wave superconductivity in high-entropy alloys

Scientific Reports, v. 12, (1), July 2022, article number 12773
Leung, Ka Wun Casey; Zhang, Xiaofu; von Rohr, Fabian; Lortz, Rolf Walter; Jaeck, Berthold

Article 4

Detecting And Distinguishing Majorana Zero Modes With The Scanning Tunnelling Microscope

Nature Reviews Physics, v. 3, (8), August 2021, p. 541-554
Jaeck, Berthold; Xie, Yonglong; Yazdani, Ali

Microscopic relaxation channels in materials for superconducting qubits

Communications Materials, v. 2, (1), July 2021, article number 72
Premkumar, Anjali; Weiland, Conan; Hwang, Sooyeon; Jaeck, Berthold; Place, Alexander P.M.; Waluyo, Iradwikanari; Hunt, Adrian; Bisogni, Valentina; Pellicari, Jonathan; Barbour, Andi; Miller, Mike S.; Russo, Paola; Camino, Fernando; Kisslinger, Kim; Tong, Xiao; Hybertsen, Mark. S.; Houck, Andrew A.; Jarrige, Ignacio

New material platform for superconducting transmon qubits with coherence times exceeding 0.3 milliseconds

Nature Communications, v. 12, March 2021, article number 1779
Place, Alexander P.M.; Rpdgers, Lila V.H.; Mundada, Pranav; Smitham, Basil M.; Fitzpatrick, Mattias; Leng, Zhaoqi; Premkumar, Anjali; Bryon, Jacob; Vrajitorea, Andrei; Sussman, Sara; Cheng, Guangming; Madhavan, Trisha; Babla, Harshvardhan K.; Le, Xuan Hoang; Gang, Youqi; Jaeck, Berthold; Gyenis, Andras; Yao, Nan; Cava, Robert J.; De leon, Nathalie P.; Houck, Andrew A.

Visualizing the multifractal wave functions of a disordered two-dimensional electron gas

Physical Review Research, v. 3, (1), Janaury-March 2021, article number 013022
Jaeck, Berthold; Zinser, Fabian; Konig, Elio J.; Wissing, Sune N.P.; Schmidt, Anke B.; Donath, Markus; Kern, Klaus; Ast, Christine R.

Conference paper 1

New material platform for superconducting transmon qubits with coherence times exceeding 0.3 milliseconds

Place, Alexander; Rodgers, Lila; Dutta, Aveek; Mundada, Pranav; Smitham, Basil; Fitzpatrick, Mattias V.; Leng, Zhaoqi; Premkumar, Anjali; Bryon, Jacob Elvin; Sussman, Sara; Cheng, Guangming; Madhavan, Trisha N.; Babla, Harshvardhan; Jaeck, Berthold; Gyenis, Andras; Yao, Nan; Cava, Robert; De Leon, Nathalie; Houck, Andrew

Article 2

Observation of backscattering induced by magnetism in a topological edge state

Proceedings of the National Academy of Sciences of the United States of America, v. 117, (28), July 2020, p. 16214-16218
Jaeck, Berthold; Xie, Yonglong; Bernevig, B. Andrei; Yazdani, Ali

Tunneling Spectroscopy of Quantum Spin Liquids

Physical Review Letters, v. 125, (26), December 2020, article number 267206
Konig, Elio J.; Randeria, Mallika T.; Jaeck, Berthold

Article 2

Observation of a Majorana zero mode in a topologically protected edge channel

Science, v. 346, (6447), June 2019, p. 1255-1259
Jaeck, Berthold; Xie, Yonglong; Li, Jian; Jeon, Sangjun; Bernevig, B. Andrei; Yazdani, Ali

Spectroscopic signatures of many-body correlations in magic-angle twisted bilayer graphene

Nature, v. 572, (7767), August 2019, p. 101-105
Xie, Yonglong; Lian, Biao; Jaeck, Berthold; Liu, Xiaomeng; Chiu, Cheng-Li; Watanabe, Kenji; Taniguchi, Takashi; Bernevig, B. Andrei; Yazdani, Ali

Article 1

Quantum Brownian Motion at Strong Dissipation Probed by Superconducting Tunnel Junctions

Physical Review Letters, v. 119, (14), October 2017, article number 147702
Jaeck, Berthold; Senkpiel, Jacob; Etzkorn, Markus; Ankerhold, Joachim; Ast, Christian R.; Kern, Klaus

Article 2

Critical Josephson current in the dynamical Coulomb blockade regime

Physical Review B, v. 93, (2), January 2016, article number 020504
Jäck, Berthold; Eltschka, Matthias; Assig, Maximilian; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus

Sensing the quantum limit in scanning tunnelling spectroscopy

Nature Communications, v. 7, October 2016, article number 13009
Ast, Christian R.; Jaeck, Berthold; Senkpiel, Jacob; Eltschka, Matthias; Etzkorn, Markus; Ankerhold, Joachim; Kern, Klaus

Article 2

A nanoscale gigahertz source realized with Josephson scanning tunneling microscopy

Applied Physics Letters, v. 106, (1), January 2015, article number 013109
Jaeck, Berthold; Eltschka, Matthias; Assig, Maximilian; Hardock, Andreas; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus

Superconducting scanning tunneling microscopy tips in a magnetic field: Geometry-controlled order of the phase transition

Applied Physics Letters, v. 107, (12), September 2015, article number 122601
Eltschka, Matthias; Jaeck, Berthold; Assig, Maximilian; Kondrashov, Oleg V.; Skvortsov, Mikhail A.; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus

Article 1

Probing absolute spin polarization at the nanoscale

Nano Letters, v. 14, (12), December 2014, p. 7171-7174
Eltschka, Matthias; Jaeck, Berthold; Assig, Maximilian; Kondrashov, Oleg V.; Skvortsov, Mikhail A.; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus

Article 1

Excitation dynamics in low band gap donor-acceptor copolymers and blends

Advanced Energy Materials, v. 2, (12), December 2012, p. 1477-1482
Gieseking, Björn; Jaeck, Berthold; Preis, Eduard; Jung, Stefan; Forster, Michael; Scherf, Ullrich; Deibel, Carsten; Dyakonov, Vladimir

2017 1

Quantum Brownian Motion at Strong Dissipation Probed by Superconducting Tunnel Junctions

Physical Review Letters, v. 119, (14), October 2017, article number 147702
Jaeck, Berthold; Senkpiel, Jacob; Etzkorn, Markus; Ankerhold, Joachim; Ast, Christian R.; Kern, Klaus
Article

2016 2

Critical Josephson current in the dynamical Coulomb blockade regime

Physical Review B, v. 93, (2), January 2016, article number 020504
Jäck, Berthold; Eltschka, Matthias; Assig, Maximilian; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus
Article

Sensing the quantum limit in scanning tunnelling spectroscopy

Nature Communications, v. 7, October 2016, article number 13009
Ast, Christian R.; Jaeck, Berthold; Senkpiel, Jacob; Eltschka, Matthias; Etzkorn, Markus; Ankerhold, Joachim; Kern, Klaus
Article

2015 2

A nanoscale gigahertz source realized with Josephson scanning tunneling microscopy

Applied Physics Letters, v. 106, (1), January 2015, article number 013109
Jaeck, Berthold; Eltschka, Matthias; Assig, Maximilian; Hardock, Andreas; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus
Article

Superconducting scanning tunneling microscopy tips in a magnetic field: Geometry-controlled order of the phase transition

Applied Physics Letters, v. 107, (12), September 2015, article number 122601
Eltschka, Matthias; Jaeck, Berthold; Assig, Maximilian; Kondrashov, Oleg V.; Skvortsov, Mikhail A.; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus
Article

2014 1

Probing absolute spin polarization at the nanoscale

Nano Letters, v. 14, (12), December 2014, p. 7171-7174
Eltschka, Matthias; Jaeck, Berthold; Assig, Maximilian; Kondrashov, Oleg V.; Skvortsov, Mikhail A.; Etzkorn, Markus; Ast, Christian R.; Kern, Klaus
Article

2012 1

Excitation dynamics in low band gap donor-acceptor copolymers and blends

Advanced Energy Materials, v. 2, (12), December 2012, p. 1477-1482
Gieseking, Björn; Jaeck, Berthold; Preis, Eduard; Jung, Stefan; Forster, Michael; Scherf, Ullrich; Deibel, Carsten; Dyakonov, Vladimir
Article

No Publications

Teaching Assignment

PHYS1314	Honors General Physics II
SCIE2500	Guided Study on Research II
SCIE3500	IRE Research Project I

PHYS1003	Energy and Related Environmental Issues
PHYS2080	Physics Seminar and Tutorial I
PHYS3090B	Directed Studies in Physics II

UROP1100G

Undergraduate Research Opportunities Series 1

SCIE2500

Guided Study on Research II

No Teaching Assignments

Research Postgraduate (RPG) Supervision

From January 2020 to December 2023 (As of 28 May 2023)

Current RPGs

Doctor of Philosophy

SANKAR, Soumya
Physics
ZHENG, Jiangchang
Physics

Projects

From January 2021 to December 2023

No Projects.
Emerging quantum phases in itinerant magnetic materials with novel electronic and magnetic properties

巡遊磁性材料的新穎電磁特性及量子態 Leading

RGC - Collaborative Research Fund
Project Team (HKUST)
JÄCK Berthold (Lead)

LIU Junwei

LORTZ Rolf Walter
2023 -
Microscopic Insights into Superconductivity in Magic Angle Twisted Bilayer Graphene

魔角扭曲雙層石墨烯超導性的STM研究 Leading

RGC - General Research Fund
Project Team (HKUST)
JÄCK Berthold (Lead)

LAW Kam Tuen

WANG Ning
2023 -
Quantum Materials by Design Atomic Scale Insights on Epitaxially Grown Thin Films Leading

Croucher Foundation
Project Team (HKUST)
JÄCK Berthold (Lead)
2022 -
Visualizing emergent quantum phases of matter in two-dimensional kagome metals

可視化二維籠紋金屬中的新興量子相 Leading

RGC - Early Career Scheme
Project Team (HKUST)
JÄCK Berthold (Lead)
2021 -

Research Interest

Publications

2022 2

2021 5

2020 2

2019 2

2017 1

2016 2

2015 2

2014 1

2012 1

Article 2

Article 4

Conference paper 1

Article 2

Article 2

Article 1

Article 2

Article 2

Article 1

Article 1

2017 1

2016 2

2015 2

2014 1

2012 1

Teaching Assignment

Research Postgraduate (RPG) Supervision

From January 2020 to December 2023 (As of 28 May 2023)

Current RPGs

Projects

From January 2021 to December 2023

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