Giant Hysteresis of Single-Molecule Magnets Adsorbed on a Nonmagnetic Insulator.

نویسندگان

  • Christian Wäckerlin
  • Fabio Donati
  • Aparajita Singha
  • Romana Baltic
  • Stefano Rusponi
  • Katharina Diller
  • François Patthey
  • Marina Pivetta
  • Yanhua Lan
  • Svetlana Klyatskaya
  • Mario Ruben
  • Harald Brune
  • Jan Dreiser
چکیده

TbPc2 single-molecule magnets adsorbed on a magnesium oxide tunnel barrier exhibit record magnetic remanence, record hysteresis opening, perfect out-of-plane alignment of the magnetic easy axes, and self-assembly into a well-ordered layer.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Influencing the properties of dysprosium single-molecule magnets with phosphorus donor ligands

Single-molecule magnets are a type of coordination compound that can retain magnetic information at low temperatures. Single-molecule magnets based on lanthanides have accounted for many important advances, including systems with very large energy barriers to reversal of the magnetization, and a di-terbium complex that displays magnetic hysteresis up to 14 K and shows strong coercivity. Ligand ...

متن کامل

Two-body tunnel transitions in a Mn4 Single-Molecule Magnet

The one-body tunnel picture of single-molecule magnets (SMMs) is not always sufficient to explain the measured tunnel transitions. An improvement to the picture is proposed by including also two-body tunnel transitions such as spin-spin cross-relaxation (SSCR) which are mediated by dipolar and weak superexchange interactions between molecules. A Mn4 SMM is used as a model system. At certain ext...

متن کامل

Quantum tunneling of two coupled single-molecular magnets

Two single-molecule magnets are coupled antiferromagnetically to form a supramolecule dimer. We study the coupling effect and tunneling process by means of the numerical exact diagonalization method, and apply them to the recently synthesized supramoleculer dimer [Mn4]2. The model parameters are calculated for the dimer based on the tunneling process. The absence of tunneling at zero field and ...

متن کامل

Investigation of Molecular Selenium ‎Adsorption to the Outer Surface of Single ‎Wall Carbon Nanotubes

   In this study the adsorption of selenium molecule (Se2) on the outer surface of zigzag (5,0), (8,0) and (10,0) carbon nanotubes has been investigated. We examined number adsorbed orientations as well as different adsorption sites on nanotubes. The adsorption energies, equilibrium distances, energy differences between the highest occupied molecular orbital (HOMO) and lowest uno...

متن کامل

Quantum tunneling in a three-dimensional network of exchange-coupled single-molecule magnets

A Mn4 single-molecule magnet is used to show that quantum tunneling of magnetization is not suppressed by moderate three-dimensional exchange coupling between molecules. Instead, it leads to an exchange bias of the quantum resonances which allows precise measurements of the effective exchange coupling that is mainly due to weak intermolecular hydrogen bonds. The magnetization versus applied fie...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Advanced materials

دوره 28 26  شماره 

صفحات  -

تاریخ انتشار 2016