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Approaching a two-component tip made of a superconductor (S) and a ferromagnet (F) from a magnetic sample allows for two distinct tunneling processes between the ferromagnets, through S: i) Charge and spin are conserved; ii) Charge and spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 D. Feinberg , G. Deutscher

Access to lower temperatures has consistently enabled scientific breakthroughs. Pushing the limits of \emph{on-chip} temperatures deep into the microkelvin regime would open the door to unprecedented quantum coherence, novel quantum states…

Scanning Superconducting QUantum Interference Device (SQUID) microscopy is a powerful tool for imaging local magnetic properties of materials and devices, but it requires a low-vibration cryogenic environment, traditionally achieved by…

Superconductivity · Physics 2019-07-04 Logan Bishop-Van Horn , Zheng Cui , John R. Kirtley , Kathryn A. Moler

A gated probe for scanning tunnelling microscopy (STM) has been developed. The probe extends normal STM operations by means of an additional electrode fabricated next to the tunnelling tip. The extra electrode does not make contact with the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 L. Gurevich , L. Canali , L. P. Kouwenhoven

Multi-tip scanning tunneling microscopy (STM) is a powerful method to perform charge transport measurements at the nanoscale. With four STM tips positioned on the surface of a sample, four-point resistance measurements can be performed in…

Mesoscale and Nanoscale Physics · Physics 2022-01-28 A. Leis , V. Cherepanov , B. Voigtländer , F. S. Tautz

Polarized light microscopy, as a contrast-enhancing technique for optically anisotropic materials, is a method well suited for the investigation of a wide variety of effects in solid-state physics, as for example birefringence in crystals…

Instrumentation and Detectors · Physics 2017-12-19 Matthias Lange , Stefan Guénon , Felix Lever , Reinhold Kleiner , Dieter Koelle

Multifocal microscopy (MFM) offers high-speed three-dimensional imaging through the simultaneous image capture from multiple focal planes. Conventional MFM systems use a fabricated grating in the emission path for a single emission…

Biological Physics · Physics 2019-07-31 M. Junaid Amin , Sabine Petry , Haw Yang , Joshua W. Shaevitz

Compact, customizable, non-magnetic vacuum systems are a key requirement for many field applications of quantum technology based on cold atoms. We report on the development and construction of a compact, low-cost ultra-high vacuum…

The work describes the capabilities of Laser Scanning Microscopy (LSM) as a spatially resolved method of testing high_Tc materials and devices. The earlier results obtained by the authors are briefly reviewed. Some novel applications of the…

Ultracold atoms exquisitely controlled by lasers are the quantum foundation, particularly for sensing, timekeeping, and computing, of state-of-the-art quantum science and technology. However, the laboratory-scale infrastructure for such…

Quantum Gases · Physics 2024-10-10 G. Kestler , K. Ton , J. T. Barreiro

Nitrogen-vacancy (NV) centers in diamond are among the most promising solid-state qubit candidates, owing to their exceptionally long spin coherence times, efficient spin-photon coupling, room-temperature operation, and steadily advancing…

Quantum Physics · Physics 2025-04-21 Arjun Raghavan , Seokjin Bae , Nazar Delegan , F. Joseph Heremans , Vidya Madhavan

Microwave energy can be advantageously used for materials processing as it provides high heating rates and homogeneous temperature field distribution. These features are partly due to the large microwave penetration depth into dielectric…

Next generation cosmic microwave background (CMB) polarimetry experiments aim to deploy order 500,000 detectors, requiring repeatable and reliable fabrication process with stable and uniform transition edge sensor (TES) bolometer…

Instrumentation and Detectors · Physics 2024-10-10 K. M. Rotermund , X. Li , R. Carney , D. Yohannes , R. Cantor , J. Vivalda , A. Chambal-Jacobs , A. Suzuki

We consider a scanning tunneling microscope (STM) such that tunneling occurs through two atomically sharp protrusions on its tip. When the two protrusions are separated by at least several atomic spacings, the differential conductance of…

Condensed Matter · Physics 2009-10-28 Michael E. Flatte' , Jeff M. Byers

Searching ferromagnetic semiconductor materials with electrically controllable spin polarization is a long-term challenge for spintronics. Bipolar magnetic semiconductors (BMS), with valence and conduction band edges fully spin-polarized in…

Materials Science · Physics 2021-12-13 Haidi Wang , Qingqing Feng , Xingxing Li , Jinlong Yang

Advances in next-generation hypersonic hot structures, high heat-flux fusion or fission components, and laser based additive manufacturing depend on reliable solid state thermal conductivity data at high and ultrahigh temperatures, where…

We show that a scanning capacitance microscope (SCM) can image buried delta-doped donor nanostructures fabricated in Si via a recently developed atomic-precision scanning tunneling microscopy (STM) lithography technique. A critical…

We demonstrate a dynamic scanning capacitance microscope (DSCM) that operates at large bandwidths, cryogenic temperatures and high magnetic fields. The setup is based on a non-contact atomic force microscope (AFM) with a quartz tuning fork…

Instrumentation and Detectors · Physics 2009-03-12 A. Baumgartner , M. E. Suddards , C. J. Mellor

We show theoretically that ultracold hydrogen atoms have very favorable properties for sympathetic cooling of molecules to microkelvin temperatures. We calculate the potential energy surfaces for spin-polarized interactions of H atoms with…

Atomic Physics · Physics 2013-11-20 Maykel L. Gonzalez-Martinez , Jeremy M. Hutson

Hyperthermia therapy (HT) is used to treat diseases through heating of high temperature usually in conjunction with some other medical therapeutics like chemotherapy and radiotherapy. In this study, we propose a promising thermostatic…

Medical Physics · Physics 2021-09-14 Yuchan Wang , Yuening Wang , Yuan Jie , Paul Carson