Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Nowack, Katja"'
Autor:
Walker, Samantha, Kaczmarek, Austin, Austermann, Jason, Bennett, Douglas, Duff, Shannon M., Hubmayr, Johannes, Keller, Ben, Morgan, Kelsey, Murphy, Colin C., Swetz, Daniel, Ullom, Joel, Niemack, Michael D., Nowack, Katja C.
Significant advancements have been made in understanding the physics of transition-edge sensors (TESs) over the past decade. However, key questions remain, particularly a detailed understanding of the current-dependent resistance of these detectors w
Externí odkaz:
http://arxiv.org/abs/2410.01940
Autor:
Ferguson, G. M., Nair, Hari P., Schreiber, Nathaniel J., Miao, Ludi, Shen, Kyle M., Schlom, Darrell G., Nowack, Katja C.
We conduct local magnetic measurements on superconducting thin-film samples of Sr$\mathrm{_2}$RuO$\mathrm{_4}$ using scanning Superconducting Quantum Interference Device (SQUID) susceptometry. From the diamagnetic response, we extract the magnetic pe
Externí odkaz:
http://arxiv.org/abs/2403.17152
Autor:
Herr, Anna, Herr, Quentin, Brebels, Steve, Kim, Min-Soo, Pokhrel, Ankit, Hodges, Blake, Josephsen, Trent, ONeal, Sabine, Bai, Ruiheng, Nowack, Katja, Valente-Feliciano, Anne-Marie, Tökei, Zsolt
We describe a fabrication stackup for digital logic with 16 superconducting NbTiN layers, self-shunted a-silicon barrier Josephson Junctions (JJs), and low loss, high-$\kappa$ tunable HZO capacitors. The stack enables 400 MJJ/cm$^2$ device density, e
Externí odkaz:
http://arxiv.org/abs/2303.16792
Autor:
Guo, Qiaochu, D'Addario, Anthony, Cheng, Yang, Kline, Jeremy, Gray, Isaiah, Cheung, Hil Fung Harry, Yang, Fengyuan, Nowack, Katja C., Fuchs, Gregory D.
Electrical switching of N\'eel order in an antiferromagnetic insulator is desirable as a basis for memory applications. Unlike electrically-driven switching of ferromagnetic order via spin-orbit torques, electrical switching of antiferromagnetic orde
Externí odkaz:
http://arxiv.org/abs/2210.06233
Autor:
Jarjour, Alexander, Ferguson, G. M., Schaefer, Brian T., Lee, Menyoung, Loh, Yen Lee, Trivedi, Nandini, Nowack, Katja C.
A growing number of two-dimensional superconductors are being discovered in the family of layered van der Waals (vdW) materials. Due to small sample volume, their characterization has been largely limited to electrical transport measurements. As a co
Externí odkaz:
http://arxiv.org/abs/2209.11800
Autor:
Ferguson, G. M., Xiao, Run, Richardella, Anthony R., Low, David, Samarth, Nitin, Nowack, Katja C.
A quantum anomalous Hall (QAH) insulator is characterized by quantized Hall and vanishing longitudinal resistances at zero magnetic field that are protected against local perturbations and independent of sample details. This insensitivity makes the m
Externí odkaz:
http://arxiv.org/abs/2112.13122
Autor:
Schaefer, Brian T., Nowack, Katja C.
Publikováno v:
Phys. Rev. B 103, 224426 (2021)
The valleys in hexagonal two-dimensional systems with broken inversion symmetry carry an intrinsic orbital magnetic moment. Despite this, such systems possess zero net magnetization unless additional symmetries are broken, since the contributions fro
Externí odkaz:
http://arxiv.org/abs/2103.04124
Autor:
Low, D., Ferguson, G. M., Jarjour, Alexander, Schaefer, Brian T., Bachmann, Maja D., Moll, Philip J. W., Nowack, Katja C.
We report a scanning superconducting quantum interference device (SQUID) microscope in a cryogen-free dilution refrigerator with a base temperature at the sample stage of at least 30 mK. The microscope is rigidly mounted to the mixing chamber plate t
Externí odkaz:
http://arxiv.org/abs/2102.09588
Autor:
Schaefer, Brian T., Wang, Lei, Jarjour, Alexander, Watanabe, Kenji, Taniguchi, Takashi, McEuen, Paul L., Nowack, Katja C.
Solid-state magnetic field sensors are important to both modern electronics and fundamental materials science. Many types of these sensors maintain high sensitivity only in a limited range of temperature and background magnetic field, but Hall-effect
Externí odkaz:
http://arxiv.org/abs/1912.12678
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