Generating, manipulating and detecting electron spin polarization and coherence at room temperature is at the heart of future spintronics and spin-based quantum information technology. Spin filtering, which is a key issue for spintronic applications, has been demonstrated by using ferromagnetic metals, diluted magnetic semiconductors, quantum point contacts, quantum dots, carbon nanotubes, mult...

1 Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720-8197, USA 2 School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, UK 3 Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, USA 4 Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA ...

Kanker payudara merupakan tumor ganas yang terbentuk dari sel-sel tumbuh dan berkembang tanpa terkendali sehingga dapat menyebar di antara jaringan atau organ dekat ke bagian tubuh lainnya. Jenis kelamin perempuan faktor risiko kanker terkuat, faktor-faktor tertentu meningkatkan termasuk bertambahnya usia, obesitas, penggunaan alkohol berbahaya, riwayat dalam keluarga, paparan radiasi, reproduk...

An exclusive advantage of semiconductor spintronics is its potential for opto-spintronics, which will allow integration spin-based information processing/storage with photon-based transfer/communications. Unfortunately, progress has so far been severely hampered by the failure to generate nearly fully spin-polarized charge carriers in semiconductors at room temperature. Here we demonstrate succ...

Abstrak: Kadar Sel Leukosit dan Eritrosit Selama Terapi Radiasi Pada Pasien Kanker Nasofaring. Karsinoma nasofaring merupakan tumor ganas yang berasal dari sel epitel pada nasofaring. Karena lokasi anatominya kompleks radiosensitivitasnya tinggi, radioterapi (RT) pengobatan direkomendasikan. Salah satu efek adalah terganggunya proses pembentukan darah. Tujuan penelitian ini untuk menganalisis k...

High-efficiency optical emission past 1.3 m of GaInNAs on GaAs, with an ultimate goal of a high-power 1.55m vertical-cavity surface-emitting laser (VCSEL), has proven to be elusive. While GaInNAs could theoretically be grown lattice-matched to GaAs with a very small bandgap [1], wavelengths are actually limited by the N solubility limit and the high In strain limit. By adding Sb to the GaInNAs ...