Abstract:
:Quantum Hall ferromagnetic transitions are typically achieved by increasing the Zeeman energy through in-situ sample rotation, while transitions in systems with pseudo-spin indices can be induced by gate control. We report here a gate-controlled quantum Hall ferromagnetic transition between two real spin states in a conventional two-dimensional system without any in-plane magnetic field. We show that the ratio of the Zeeman splitting to the cyclotron gap in a Ge two-dimensional hole system increases with decreasing density owing to inter-carrier interactions. Below a critical density of ~2.4 × 1010 cm-2, this ratio grows greater than 1, resulting in a ferromagnetic ground state at filling factor ν = 2. At the critical density, a resistance peak due to the formation of microscopic domains of opposite spin orientations is observed. Such gate-controlled spin-polarizations in the quantum Hall regime opens the door to realizing Majorana modes using two-dimensional systems in conventional, low-spin-orbit-coupling semiconductors.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Lu TM,Tracy LA,Laroche D,Huang SH,Chuang Y,Su YH,Li JY,Liu CWdoi
10.1038/s41598-017-02757-2subject
Has Abstractpub_date
2017-06-01 00:00:00pages
2468issue
1issn
2045-2322pii
10.1038/s41598-017-02757-2journal_volume
7pub_type
杂志文章abstract::The Internet of Things (IoT), as a cutting-edge integrated cross-technology, promises to informationize people's daily lives, while being threatened by continuous challenges of eavesdropping and tampering. The emerging quantum cryptography, harnessing the random nature of quantum mechanics, may also enable uncondition...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-42278-8
更新日期:2019-04-09 00:00:00
abstract::Layered-structure materials are currently relevant given their quasi-2D nature. Knowledge of their physical properties is currently of major interest. Niobium ditelluride possesses a monoclinic layered-structure with a distortion in the tellurium planes. This structural complexity has hindered the determination of its...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-35308-4
更新日期:2018-11-19 00:00:00
abstract::Gelatin-methacryloyl (GelMA) is one of the most commonly used photopolymerizable biomaterials in bio-applications. However, GelMA synthesis remains suboptimal, as its reaction parameters have not been fully investigated. The goal of this study is to establish an optimal route for effective and controllable GelMA synth...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep31036
更新日期:2016-08-09 00:00:00
abstract::Surfactants during routine washing have a tremendous effect on lipid loss from hair. This study aims to understand the loss of lipids from hair upon contact with surfactants and develop a way to prevent the lipid loss. The change in lipid levels depends on the relative hydrophobicity of the lipid. We herein propose th...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-46370-x
更新日期:2019-07-08 00:00:00
abstract::Rising global temperatures are proving to be detrimental for the agriculture. Hence, strategies are needed to induce thermotolerance in food crops to sustain the food production. GABA (γ-aminobutyric acid), a non-protein amino acid, can partially protect plants from high-temperature stress. This study hypothesises tha...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-44163-w
更新日期:2019-05-24 00:00:00
abstract::Pinellia (Pinellia ternata (Thunb.) Breit.), as important medicinal plant, has been used to treat various ailments for a long time. The sixteen ploid plant (2n = 16 * 13 = 208) Pinellia T2Plus line was obtained from an octoploid (2n = 8 * 13 = 104) T2 line by chromosome-doubling technique. Compared with T2 line, the c...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-61512-2
更新日期:2020-03-12 00:00:00
abstract::Compared with natural materials, chiral metamaterials have been demonstrated with orders of magnitude stronger chiroptical response, which provides the basis for applications such as ultracompact polarization components and plasmonic-enhanced biosensing. Terahertz chiral metamaterials that allow dynamic polarization c...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-18472-x
更新日期:2018-01-09 00:00:00
abstract::Novel-morphological Fe3O4 nanosheets with magnetochromatic property have been prepared by a modified solvothermal method. Such nanosheets could form one-dimension photonic crystal under an external magnetic field. The Fe3O4 nanosheets suspension could strongly diffract visible light and display varied colors with chan...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep09320
更新日期:2015-03-23 00:00:00
abstract::Many experimental techniques rely on specific recognition and stringent binding of proteins by antibodies. This can readily be achieved by introducing an epitope tag. We employed an approach that uses a relative lack of evolutionary conservation to inform epitope tag site selection, followed by integration of the tag-...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep36986
更新日期:2016-11-28 00:00:00
abstract::Alzheimer's disease (AD) is a severe neurodegenerative disorder for which identification of differentially expressed genes is one way to find new therapeutic targets. Here, we conducted analysis to identify age-independent, AD-specific genes. We found that the MET, WIF1, and NPTX2 genes are downregulated in AD. WIF1 a...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-21256-6
更新日期:2018-02-09 00:00:00
abstract::The increasing demand for healthy baked goods boosted studies on sourdough microbiota with beneficial metabolic traits, to be used as potential functional starters. Here, 139 yeasts isolated from cereal-based fermented foods were in vitro characterized for their phytase and antioxidant activities. The molecular charac...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-69774-6
更新日期:2020-07-30 00:00:00
abstract::Bone homeostasis is maintained by the balance of osteoblasts (OBs) and osteoclasts (OCs). Increased activity of OCs not only contributes to pathological bone resorption, such as osteoporosis and periodontitis, but also is responsible for physiological conditions like orthodontic tooth movement (OTM). However, the deta...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep08016
更新日期:2015-01-26 00:00:00
abstract::We recently reported that R-spondin 2 (Rspo2), a secreted activator of Wnt/β-catenin signaling, promotes acetylcholine receptor (AChR) clustering and neuromuscular junction (NMJ) formation via its receptor, Lgr5. Rspo2 is expressed highly in spinal motor neurons (SMNs) and marginally in the skeletal muscle, but the or...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-31949-7
更新日期:2018-09-11 00:00:00
abstract::Genetic circuit-based biosensors have emerged as an effective analytical tool in synthetic biology; these biosensors can be applied to high-throughput screening of new biocatalysts and metabolic pathways. Sigma 54 (σ54)-dependent transcription factor (TF) can be a valuable component of these biosensors owing to its in...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-62892-1
更新日期:2020-04-08 00:00:00
abstract::Porous three-dimensional hydrogel scaffolds have an exquisite ability to promote tissue repair. However, because of their high water content and invasive nature during surgical implantation, hydrogels are at an increased risk of bacterial infection. Recently, we have developed elastic biomimetic cryogels, an advanced ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-75196-1
更新日期:2020-10-27 00:00:00
abstract::The geographic distribution of species depends on their relationships with climate and on the biotic interactions of the species. Ecological Niche Models (ENMs) mainly consider climatic variables only and may tend to overestimate these distributions, especially for species strongly restricted by biotic interactions. W...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-63638-9
更新日期:2020-06-12 00:00:00
abstract::Cylindrical silk gland (CY) spigots distinguish a large clade of modern spiders, the CY spigot clade, which includes all entelegyne spiders and their closest relatives. Following a widespread paradigm, CYs and their spigots are only known to occur in female spiders and they produce silk used in the construction of egg...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-63521-7
更新日期:2020-04-20 00:00:00
abstract::The coincidence of flood flows in a mainstream and its tributaries may lead to catastrophic floods. In this paper, we investigated the flood coincidence risk under nonstationary conditions arising from climate changes. The coincidence probabilities considering flood occurrence dates and flood magnitudes were calculate...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-60264-3
更新日期:2020-02-25 00:00:00
abstract::Optical imaging and photolithography promise broad applications in nano-electronics, metrologies, and single-molecule biology. Light diffraction however sets a fundamental limit on optical resolution, and it poses a critical challenge to the down-scaling of nano-scale manufacturing. Surface plasmons have been used to ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep00175
更新日期:2011-01-01 00:00:00
abstract::Although it is well known that mean annual rainfall (MAR) and rainfall seasonality have a key role in influencing the distribution of tree and grass cover in African tropical grassy biomes (TGBs), the impact of intra-seasonal rainfall variability on these distributions is less agreed upon. Since the prevalent mechanis...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-38933-9
更新日期:2019-02-20 00:00:00
abstract::A junction between two boundaries of a topological superconductor (TSC), mediated by localized edge modes of Majorana fermions, is investigated. The tunneling of fermions across the junction depends on the magnetic flux. It breaks the time-reversal symmetry at the boundary of the sample. The persistent current is dete...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-07492-2
更新日期:2017-08-02 00:00:00
abstract::Viral nervous necrosis (VNN) certainly represents the biggest challenge for the sustainability and the development of aquaculture. A large number of economically relevant fish species have proven to be susceptible to the disease. Conversely, gilthead sea bream has generally been considered resistant to VNN, although i...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep46755
更新日期:2017-05-02 00:00:00
abstract::Current preclinical screening methods do not adequately detect cardiotoxicity. Using human induced pluripotent stem cell-derived cardiomyocytes (iPS-CMs), more physiologically relevant preclinical or patient-specific screening to detect potential cardiotoxic effects of drug candidates may be possible. However, one of ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep11817
更新日期:2015-07-03 00:00:00
abstract::Allosteric modulation of G protein-coupled receptors represent a promising mechanism of pharmacological intervention. Dramatic developments witnessed in the structural biology of membrane proteins continue to reveal that the binding sites of allosteric modulators are widely distributed, including along protein surface...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-42618-8
更新日期:2019-04-16 00:00:00
abstract::Non-arteritic anterior ischemic optic neuropathy (NAION) causes a sudden loss of vision and lacks effective treatment. Granulocyte colony-stimulating factor (G-CSF) provides neuroprotection against the experimental optic nerve injuries but also induce leukocytosis upon typical administration. We found synergetic neuro...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-66977-9
更新日期:2020-06-25 00:00:00
abstract::Introducing artificial pinning centers is a well established strategy to trap quantum vortices and increase the maximal magnetic field and applied electric current that a superconductor can sustain without dissipation. In case of spatially periodic pinning, a clear enhancement of the superconducting critical current a...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep14604
更新日期:2015-10-01 00:00:00
abstract::Monolayer germanene, a novel graphene-like germanium allotrope akin to silicene has been recently grown on metallic substrates. Lying directly on the metal surfaces the reconstructed atom-thin sheets are prone to lose the massless Dirac fermion character and unique associated physical properties of free standing germa...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep20714
更新日期:2016-02-10 00:00:00
abstract::Inhalation exposure to airborne respirable crystalline silica (RCS) poses major health risks in many industrial environments. There is a need for new sensitive instruments and methods for in-field or near real-time measurement of crystalline silica aerosol. The objective of this study was to develop an approach, using...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-14363-3
更新日期:2017-10-24 00:00:00
abstract::Vitellogenesis or maternal yolk formation is considered critical to the reproduction of egg-laying animals. In invertebrates, however, most of its regulatory genes are still unknown. Via a combined mapping and whole-genome sequencing strategy, we performed a forward genetic screen to isolate novel regulators of yolk p...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep16381
更新日期:2015-11-10 00:00:00
abstract::Epstein-Barr virus-encoded RNAs (EBER1 and EBER2) are two highly abundant, non-protein coding RNAs consistently expressed in all EBV infected cells, but their function remains poorly understood. Conventional in situ hybridization studies have indicated that these RNAs are present exclusively in the nucleus. We have re...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-33758-4
更新日期:2018-10-18 00:00:00