99 citations · 851 across the 37 of their papers we have counts for
36 papers
Layer- and Field-Dependent Magnetic Order in 2D CrSBr Revealed by Pulsed Nanocalorimetry
Hugo Gomez-Torres, Roop K. Mech, Alessandra Canetta +9
Understanding the evolution of magnetic order in the two-dimensional limit remains a central challenge in van der Waals magnets, where thermodynamic measurements are constrained by…
Quantum Heat Under the Microscope: A Perspective on Cryogenic Scanning Thermal Microscopy
Valentin Fonck, Jean Spiece, Pascal Gehring
Exploring thermal transport at cryogenic temperatures presents both significant challenges and valuable insights. By uncovering the thermal counterpart of well-known quantum phenom…
Direct Nanoscale Pyroelectric Characterization of a CuInPS van der Waals Nanogenerator
Valentin Fonck, Roop K. Mech, Mohammadali Razeghi +8
Pyroelectric energy conversion offers a route for harvesting time-dependent thermalfluctuations that are abundant in natural and technological environments. Twodimensional ferroele…
Probing the dynamics and configurations of single molecule junctions via Seebeck coefficient spectroscopy
Juan Hurtado-Gallego, Jeremie Pirard, Abdalghani H. S. Daaoub +5
Single molecule junctions exhibit dynamic structural configurations that strongly influence their electronic and thermoelectric properties. Here, we combine conductance (G) and See…
Characterization of heat transfer in 3D CMOS structures using Sideband Scanning Thermal Wave Microscopy
Valentin Fonck, Mohammadali Razeghi, Jean Spièce +5
Efficient thermal management is critical for cryogenic CMOS circuits, where local heating can compromise device performance and qubit coherence. Understanding heat flow at the nano…
A Single-Molecule Quantum Heat Engine
Serhii Volosheniuk, Riccardo Conte, Eugenia Pyurbeeva +6
Particle-exchange heat engines operate without moving parts or time-dependent driving, relying solely on static energy-selective transport. Here, we realize a particle-exchange qua…
Thermal transport mapping in twisted double bilayer graphene
Roop Kumar Mech, Alessandra Canetta, Yubin Huang +13
Two-dimensional (2D) materials have attracted significant interest due to their tunable physical properties when stacked into homo- and hetero-structures. Twisting adjacent layers…
Direct measurement of the local electrocaloric effect in 2D ferroelectric InSe by Scanning Electrocaloric Thermometry
Jean Spièce, Valentin Fonck, Charalambos Evangeli +3
The electrocaloric effect refers to the temperature change in a material when an electric field is applied or removed. Significant breakthroughs revealed its potential for solid-st…
Violation of the Wiedemann-Franz law and ultra-low thermal conductivity of TiCT MXene
Yubin Huang, Jean Spiece, Tetiana Parker +3
The high electrical conductivity and good chemical stability of MXenes offer hopes for their use in many applications, such as wearable electronics, energy storage, or electromagne…
Versatile polymer method to dry-flip two-dimensional moiré hetero structures for nanoscale surface characterization
Roop Kumar Mech, Jean Spièce, Kenji Watanabe +2
The recent discovery of magic angle twisted bilayer graphene (MATBG), in which two sheets of monolayer graphene are precisely stacked to a specific angle, has opened up a plethora…
Quantifying the local mechanical properties of twisted double bilayer graphene
Alessandra Canetta, Sergio Gonzalez-Munoz, Viet-Hung Nguyen +13
Nanomechanical measurements of minimally twisted van der Waals materials remained elusive despite their fundamental importance for device realisation. Here, we use Ultrasonic Force…
Record-high Anomalous Ettingshausen effect in a micron-sized magnetic Weyl semimetal on-chip cooler
Mohammadali Razeghi, Jean Spiece, Valentin Fonck +8
Solid-state cooling devices offer compact, quiet, reliable and environmentally friendly solutions that currently rely primarily on the thermoelectric (TE) effect. Despite more than…
Impact of spin-entropy on the thermoelectric properties of a 2D magnet
Alessandra Canetta, Serhii Volosheniuk, Sayooj Satheesh +11
Heat-to-charge conversion efficiency of thermoelectric materials is closely linked to the entropy per charge carrier. Thus, magnetic materials are promising building blocks for hig…
Synthesis of Ultra-Thin Superionic Cu2Se and New Aspects of the Low-Temperature Crystal Configurations
Abdulsalam Aji Suleiman, Amir Parsi, Mohammadali Razeghi +6
Superionic conductors offer unique advantages for novel technological devices in various fields, such as energy storage and neuromorphic computing. Above 414 K, Cu2Se turns into a…
Implementation of SNS thermometers into molecular devices for cryogenic thermoelectric experiments
Serhii Volosheniuk, Damian Bouwmeester, Chunwei Hsu +2
Thermocurrent flowing through a single-molecule device contains valuable information about the quantum properties of the molecular structure and, in particular, on its electronic a…
Single-material MoS thermoelectric junction enabled by substrate engineering
Mohammadali Razeghi, Jean Spiece, Oğuzhan Oğuz +7
To realize a thermoelectric power generator, typically a junction between two materials with different Seebeck coefficient needs to be fabricated. Such difference in Seebeck coeffi…
Electronic measurements of entropy in meso- and nanoscale systems
Eugenia Pyurbeeva, Jan A. Mol, Pascal Gehring
Entropy is one of the most fundamental quantities in physics. For systems with few degrees of freedom, the value of entropy provides a powerful insight into its microscopic dynamic…
Magnetic Field Universality of the Kondo Effect Revealed by Thermocurrent Spectroscopy
Chunwei Hsu, Theo A. Costi, David Vogel +4
Probing the universal low temperature magnetic field scaling of Kondo-correlated quantum dots via electrical conductance has proved to be experimentally challenging. Here, we show…
Controlling the entropy of a single-molecule junction
Eugenia Pyurbeeva, Chunwei Hsu, David Vogel +5
Single molecules are nanoscale thermodynamic systems with few degrees of freedom. Thus, the knowledge of their entropy can reveal the presence of microscopic electron transfer dyna…
Direct Mapping of Local Seebeck Coefficient in 2D Material Nanostructures via Scanning Thermal Gate Microscopy
Achim Harzheim, Charalambos Evangeli, Oleg V. Kolosov +1
Local variations in the Seebeck coefficient in low-dimensional materials-based nanostructures and devices play a major role in their thermoelectric performance. Unfortunately, curr…
Single-Material Graphene Thermocouples
Achim Harzheim, Fabian Könemann, Bernd Gotsmann +2
On-chip temperature sensing on a micro- to nanometer scale is becoming more desirable as the complexity of nanodevices and size requirements increase and with it the challenges in…
A Mechanically Tunable Quantum Dot in a Graphene Break Junction
Sabina Caneva, Matthijs D. Hermans, Martin Lee +7
Graphene quantum dots (QDs) are intensively studied as platforms for the next generation of quantum electronic devices. Fine tuning of the transport properties in monolayer graphen…
Efficient heating of single-molecule junctions for thermoelectric studies at cryogenic temperatures
Pascal Gehring, Martijn van der Star, Charalambos Evangeli +4
The energy dependent thermoelectric response of a single molecule contains valuable information about its transmission function and its excited states. However, measuring it requir…
Tunneling spectroscopy of localized states of barriers in vertical van der Waals heterostructures
Nikos Papadopoulos, Pascal Gehring, Kenji Watanabe +3
In transition metal dichalcogenides, defects have been found to play an important role, affecting doping, spin-valley relaxation dynamics, and assisting in proximity effects of spi…