Film zum Institut

Promotion in der IMPRS-CPQM

The International Max Planck Research School for Chemistry and Physics of Quantum Materials offers a highly attractive overall package of PhD level research on materials chemistry and physics.

Learn more on the IMPRS-CPQM webpage.

Workshops/Konferenzen

  • Keine Veranstaltungen

Vorträge

Willkommen am Max-Planck-Institut für Chemische Physik fester Stoffe

pendel
Chemie und Physik – ein starkes Team!

Unsere Mission: Spitzenforschung auf dem Gebiet der Materialwissenschaften - fachübergreifend zwischen Festkörperchemie und Physik der kondensierten Materie. Mehr...

Graphite is a model system for the study of electrons in the so-called magnetic quantum limit. This quantum limit is attained when the magnetic field is strong enough to confine the charge carriers to their lowest Landau levels. It is expected that the model of the free electron gas fails beyond this limit since here electron interactions may play a significant role in determining the electronic ground state. Indeed, our thermodynamic studies in high magnetic field revealed that even electron-lattice interaction has to be taken into account in addition to electron-electron interaction.   

Thermodynamic signatures of field-induced phase transitions in graphite

10. November 2017

Graphite is a model system for the study of electrons in the so-called magnetic quantum limit. This quantum limit is attained when the magnetic field is strong enough to confine the charge carriers to their lowest Landau levels. It is expected that the model of the free electron gas fails beyond this limit since here electron interactions may play a significant role in determining the electronic ground state. Indeed, our thermodynamic studies in high magnetic field revealed that even electron-lattice interaction has to be taken into account in addition to electron-electron interaction.   

[mehr]
The simple cubic structure of CeB6 does not change while intricate multipolar phenomena are developed upon a non-magnetic La substitution. However, phase diagrams of Ce1-xLaxB6 have been elusive for the last decades. Recently, detailed phase transitions in Ce1-xLaxB6 have been revealed by scientists of MPI-CPfS, TU-Dresden, and I. M. Frantsevich Institute. In addition, a simple feature which is likely to be observed in a multipolar heavy-fermion system has been found. 

New features in multipolar heavy-fermion materials

10. November 2017

The simple cubic structure of CeB6 does not change while intricate multipolar phenomena are developed upon a non-magnetic La substitution. However, phase diagrams of Ce1-xLaxB6 have been elusive for the last decades. Recently, detailed phase transitions in Ce1-xLaxB6 have been revealed by scientists of MPI-CPfS, TU-Dresden, and I. M. Frantsevich Institute. In addition, a simple feature which is likely to be observed in a multipolar heavy-fermion system has been found. 

[mehr]
The premartensite phase of shape memory and magnetic shape memory alloys is believed to be a precursor state of the martensite phase with preserved austenite phase symmetry. The thermodynamic stability of the premartensite phase and its relation to the martensitic phase is still an unresolved issue, even though it is critical to the understanding of the functional properties of magnetic shape memory alloys.

Robust Bain distortion in the premartensite phase of a platinum-substituted Ni2MnGa magnetic shape memory alloy

23. Oktober 2017

The premartensite phase of shape memory and magnetic shape memory alloys is believed to be a precursor state of the martensite phase with preserved austenite phase symmetry. The thermodynamic stability of the premartensite phase and its relation to the martensitic phase is still an unresolved issue, even though it is critical to the understanding of the functional properties of magnetic shape memory alloys. [mehr]
Steffen Wirth erhält die Fellowship für „seine grundlegenden Beiträge zu unserem Verständnis von stark korrelierten Elektronensystemen, insbesondere bei reduzierten Längenskalen, einschließlich des Kondo-Effekts und magnetischer Wechselwirkungen", wie es in der Ernennungsurkunde heißt. 

Dr. Steffen Wirth zum Fellow der American Physical Society (APS) gewählt

20. Oktober 2017

Steffen Wirth erhält die Fellowship für „seine grundlegenden Beiträge zu unserem Verständnis von stark korrelierten Elektronensystemen, insbesondere bei reduzierten Längenskalen, einschließlich des Kondo-Effekts und magnetischer Wechselwirkungen", wie es in der Ernennungsurkunde heißt. 

[mehr]
Die Oberflächen von Materialien können einzigartige elektronische Eigenschaften aufweisen, weil sich die Elektronen dort manchmal sehr verschieden vom Inneren der Verbindungen verhalten. Insbesondere die intrinsisch gebrochenen Symmetrien an der Oberfläche im Vergleich zum Inneren der Probe erlauben eine Unterscheidung von Energiezuständen nach ihrem Spin. Dieser Effekt könnte in neuartigen elektronischen Geräten verwendet werden, die sowohl mit der Ladung als auch mit dem Spin von Elektronen arbeiten.

Elektronen mit maximaler Spinaufspaltung

28. September 2017

Die Oberflächen von Materialien können einzigartige elektronische Eigenschaften aufweisen, weil sich die Elektronen dort manchmal sehr verschieden vom Inneren der Verbindungen verhalten. Insbesondere die intrinsisch gebrochenen Symmetrien an der Oberfläche im Vergleich zum Inneren der Probe erlauben eine Unterscheidung von Energiezuständen nach ihrem Spin. Dieser Effekt könnte in neuartigen elektronischen Geräten verwendet werden, die sowohl mit der Ladung als auch mit dem Spin von Elektronen arbeiten.

[mehr]
The concept of 'quantum critical point', the zero temperature point of a line of 2nd order phase transitions, is rather modern: It is nowadays strongly investigated mainly in connection with unconventional superconductivity. Recent experimental and theoretical works have shown that some metals show competing ferro- and antiferromagnetic order at very low temperature. This allows for the possibility of multiple critical points and thus, at T=0, for quantum tricritical points.

Quantum Tricritical Points

20. September 2017

The concept of 'quantum critical point', the zero temperature point of a line of 2nd order phase transitions, is rather modern: It is nowadays strongly investigated mainly in connection with unconventional superconductivity. Recent experimental and theoretical works have shown that some metals show competing ferro- and antiferromagnetic order at very low temperature. This allows for the possibility of multiple critical points and thus, at T=0, for quantum tricritical points.

[mehr]
Nach bisheriger Vorstellung haben Phononen in thermischen Isolatoren eine kurze Lebensdauer. Eine Untersuchung der Clathrat-I-Phase Ba7.81Au5.33Ge40.67 mit inelastischer Neutronenstreuung zeigt nun ein völlig anderes Bild.

Neue Einsichten zur Wärmeleitung in Feststoffen

11. September 2017

Nach bisheriger Vorstellung haben Phononen in thermischen Isolatoren eine kurze Lebensdauer. Eine Untersuchung der Clathrat-I-Phase Ba7.81Au5.33Ge40.67 mit inelastischer Neutronenstreuung zeigt nun ein völlig anderes Bild.

[mehr]
Today’s world, rapidly changing because of “big data”, is encapsulated in trillions of tiny magnetic objects – magnetic bits – each of which stores one bit of data in magnetic disk drives.   A group of scientists from the Max Planck Institutes in Halle and Dresden have discovered a new kind of magnetic nano-object in a novel material that could serve as a magnetic bit with cloaking properties to make a magnetic disk drive with no moving parts – a Racetrack Memory – a reality in the near future.

Bit data goes anti-skyrmions

1. September 2017

Today’s world, rapidly changing because of “big data”, is encapsulated in trillions of tiny magnetic objects – magnetic bits – each of which stores one bit of data in magnetic disk drives.   A group of scientists from the Max Planck Institutes in Halle and Dresden have discovered a new kind of magnetic nano-object in a novel material that could serve as a magnetic bit with cloaking properties to make a magnetic disk drive with no moving parts – a Racetrack Memory – a reality in the near future.

[mehr]
The National Natural Science Foundation of China honors Dr. Enke Liu, a Humboldt research fellow of the Alexander von Humboldt Foundation, with the 2017 National Science Fund for Excellent Young Scholars for his great contribution to magnetic phase transitions. This scholarship serves as a substantial bolster to the young talents in China.

Dr. Enke Liu honored with National Science Fund for Excellent Young Scholars

1. September 2017

The National Natural Science Foundation of China honors Dr. Enke Liu, a Humboldt research fellow of the Alexander von Humboldt Foundation, with the 2017 National Science Fund for Excellent Young Scholars for his great contribution to magnetic phase transitions. This scholarship serves as a substantial bolster to the young talents in China.

[mehr]

News-Archiv

 
loading content