# Thermoelectrics

Thermoelectrics are materials that can generate electricity from the application of a temperature gradient, or vice versa, through the thermoelectric effect. By exploiting this coupling between thermal and electrical properties, thermoelectric devices can be made that carry heat from a cold to a hot side (refrigeration) or that generate electricity from heat flows.

## Latest Research and Reviews

• Reviews | | open

### Computational strategies for design and discovery of nanostructured thermoelectrics

• Shiqiang Hao
• , Vinayak P. Dravid
• , Mercouri G. Kanatzidis
•  & Christopher Wolverton
• Research | | open

### Intrinsic anharmonic localization in thermoelectric PbSe

To optimize the performance of lead chalcogenides for thermoelectric applications, strategies to further reduce the crystal’s thermal conductivity is required. Here, the authors discover anharmonic localized vibrations in PbSe crystals for optimizing the crystal’s vibrational transport properties.

• M. E. Manley
• , O. Hellman
• , N. Shulumba
• , A. F. May
• , P. J. Stonaha
• , J. W. Lynn
• , V. O. Garlea
• , A. Alatas
• , R. P. Hermann
• , J. D. Budai
• , H. Wang
• , B. C. Sales
•  & A. J. Minnich
• Research | | open

### Anomalous Nernst effect beyond the magnetization scaling relation in the ferromagnetic Heusler compound Co2MnGa

We report a high anomalous Nernst thermopower ( \$\$S_{yx}^A\$\$ $S y x A$ ) -value of ~6.0 µV K−1 at room temperature in the ferromagnetic topological Heusler compound Co2MnGa. The measured value is seven-times larger than any anomalous Nernst thermopower value ever reported for a conventional ferromagnet. The high anomalous Nernst effect originates from a large net Berry curvature near the Fermi level associated with nodal lines and Weyl points.

• Satya N. Guin
• , Kaustuv Manna
• , Jonathan Noky
• , Sarah J. Watzman
• , Chenguang Fu
• , Nitesh Kumar
• , Walter Schnelle
• , Chandra Shekhar
• , Yan Sun
• , Johannes Gooth
•  & Claudia Felser
• Research | | open

### Effects of Disorder on Thermoelectric Properties of Semiconducting Polymers

• , Connor J. Boyle
• , Dhandapani Venkataraman
•  & Zlatan Aksamija
• Research | | open

### Ti2NiCoSnSb - a new half-Heusler type high-entropy alloy showing simultaneous increase in Seebeck coefficient and electrical conductivity for thermoelectric applications

• Anirudha Karati
• , M. Nagini
• , Sanyukta Ghosh
• , Ramesh Chandra Mallik
• , B. S. Murty
• Research |

### The Fermi surface geometrical origin of axis-dependent conduction polarity in layered materials

A single-band metal whose carriers behave as electrons or holes depending on the direction of travel is observed. The effect arises from a particular type of Fermi surface geometry.

• Bin He
• , Yaxian Wang
• , Maxx Q. Arguilla
• , Nicholas D. Cultrara
• , Michael R. Scudder
• , Joshua E. Goldberger
• , Wolfgang Windl
•  & Joseph P. Heremans

## News and Comment

• News and Views |

### Microthermoelectric devices keep their cool

• Owain Vaughan
• News and Views |

### Next step in manufacturing

Thermoelectric devices convert heat flows into electricity. Researchers recently demonstrated that thermoelectric materials can be produced in good quality by 3D printing, enabling a low-cost production process in the near future.

• Jan D. Koenig
Nature Energy 3, 259-260
• News and Views |

### Bring on the heat

One third of industrial processes occur at high temperatures above 1300 K, but current methods of waste heat recovery at these temperatures are limited. Now, reduced graphene oxide is shown to be a highly efficient and reliable thermoelectric material up to 3000 K.

• Gabi Schierning
Nature Energy 3, 92-93
• Research Highlights |

### Thermoelectric avenue

• James Gallagher
Nature Energy 2, 834
• News and Views |

### Spin thermal effects: A new member of the Hall family

The spin Nernst effect — a spin accumulation in a ferromagnet in the direction normal to an applied thermal gradient and external magnetic field — has been experimentally demonstrated.

• Joseph P. Heremans
Nature Materials 16, 968-969
• News and Views |

### Thermal hall effect: Turn your phonon

Heat travelling down a thermal gradient has been found to undergo a significant deflection by a magnetic field in a multiferroic insulator.

• Xavier Moya
•  & Neil D. Mathur
Nature Materials 16, 784-785