Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Thermal expansion and Thermal stress: Problem Solving01:27

Thermal expansion and Thermal stress: Problem Solving

2.1K
San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
2.1K
Conduct Disorder01:28

Conduct Disorder

497
Conduct disorder is a complex mental health diagnosis characterized by a repetitive and persistent pattern of behavior that violates societal norms, the rights of others, or age-appropriate rules. The diagnostic criteria for conduct disorder require the presence of at least three problematic behaviors within the past 12 months, with at least one occurring in the past six months. These behaviors are grouped into four categories: aggression toward people and animals; destruction of property;...
497
Conduction System of the Heart01:19

Conduction System of the Heart

12.7K
Autorhythmicity is a term that refers to the heart's inherent ability to generate electrical signals and instigate muscle contractions. This self-regulating conduction system within the heart consists of two key components: the pacemaker cells and specialized conducting cells.
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...
12.7K
Conduction System of the Heart01:20

Conduction System of the Heart

3.5K
The cardiac conduction system produces and transmits electrical impulses that prompt myocardial contraction, ensuring efficient heart function. This intricate system ensures that the heart beats in a coordinated and efficient manner, beginning with the atria and then the ventricles. The conduction system optimizes cardiac output by maintaining this precise sequence, which is crucial for adequate blood circulation.
This system relies on the unique properties of nodal and Purkinje cells:...
3.5K
Resistance and Conductance01:25

Resistance and Conductance

495
A conductor's DC resistance at a given temperature is influenced by its resistivity, length, and cross-sectional area. Resistivity is an inherent property of the conductor material, with annealed copper serving as the international standard for measurement. For instance, the resistivity of hard-drawn aluminum at 20 degrees Celsius is 61% of the standard conductivity of annealed copper.
Various factors impact the resistance of a conductor. Spiraling in stranded conductors increases their...
495
Electrical Conductivity01:13

Electrical Conductivity

1.7K
In perfect conductors, the electric field inside is always zero due to the abundance of free electrons, which nullify any field by flowing. As a result, any residual charge resides on the surface.
In a practical conductor, an applied electric field may be sustained, causing a flow of electrons, which produce a current. The differential form of the current, the current density, is related to the electric field.
More generally, it is related to the force per unit charge, which involves the...
1.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Beyond inhibition: harnessing the DRD2-VEGF-A feedback loop for precision anti-angiogenesis therapy in cancer.

Frontiers in oncology·2026
Same author

Dopamine D2 Receptor Agonists as Modulators of VEGF-A-Driven Angiogenesis: Mechanisms, Clinical Evidence, and Translational Opportunities.

FASEB journal : official publication of the Federation of American Societies for Experimental Biology·2026
Same author

Imaging the flat bands of magic-angle graphene reshaped by interactions.

Nature·2026
Same author

Revealing Electron-Electron Interactions in Graphene at Room Temperature with a Quantum Twisting Microscope.

Nano letters·2026
Same author

Half-integer thermal conductance in integer quantum Hall states.

Nature communications·2026
Same author

Xmu-mp-1 attenuates streptozotocin-induced neurotoxicity in SH-SY5Y cells: potential role of Hippo pathway modulation.

Molecular biology reports·2026

Related Experiment Video

Updated: Jan 22, 2026

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
10:23

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies

Published on: November 5, 2015

14.5K

Universal quantized thermal conductance in graphene.

Saurabh Kumar Srivastav1, Manas Ranjan Sahu1, K Watanabe2

  • 1Department of Physics, Indian Institute of Science, Bangalore 560012, India.

Science Advances
|July 17, 2019
PubMed
Summary
This summary is machine-generated.

Thermal conductance quantization in graphene reveals universal information flow. Measurements confirm precise quantization, offering new insights into exotic quantum Hall states.

More Related Videos

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

3.8K
Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials
09:23

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Published on: May 17, 2024

2.1K

Related Experiment Videos

Last Updated: Jan 22, 2026

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
10:23

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies

Published on: November 5, 2015

14.5K
Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
07:51

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection

Published on: February 1, 2022

3.8K
Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials
09:23

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Published on: May 17, 2024

2.1K

Area of Science:

  • Condensed Matter Physics
  • Quantum Hall Effect
  • Topological Order

Background:

  • The universal quantization of thermal conductance is a key indicator of a system's topological order.
  • Previous studies on the state showed thermal conductance values inconsistent with existing theoretical models (Pfaffian/anti-Pfaffian).
  • Edge reconstruction in quantum wells complicates thermal transport analysis due to counter-propagating edge channels.

Purpose of the Study:

  • To investigate thermal conductance in graphene using an atomically sharp confining potential.
  • To explore the universality of thermal conductance quantization in graphene quantum Hall states.
  • To provide new insights into exotic phenomena like even-denominator quantum Hall fractions in graphene.

Main Methods:

  • Fabrication of hexagonal boron-nitride encapsulated graphene devices with atomically sharp confining potentials.
  • Utilized sensitive noise thermometry for precise thermal conductance measurements.
  • Employed SiO2/Si or graphite back gates for electrostatic control.

Main Results:

  • Observed quantized thermal conductance in graphene with accuracy within 5% for and 6 plateaus.
  • Demonstrated the universality of information flow in these graphene quantum Hall systems.
  • The results highlight the suitability of graphene for studying topological phenomena.

Conclusions:

  • Graphene, with its sharp confining potentials, provides a cleaner platform for studying quantum Hall thermal transport.
  • The precise quantization observed supports the universality of thermal conductance.
  • These findings pave the way for deeper investigations into exotic quantum Hall states in graphene.