Javier Tejada Palacios (January 6, 1948, Castejón, Navarra) is a physicist and scientist specializing in quantum magnetism. He is currently (2020) Emeritus Professor of Condensed Matter Physics at the Faculty of Physics of the University of Barcelona.

Professor Javier Tejada's life-long achievements in magnetism are widely known throughout the world. In 1990s he co-authored a series of works that reported first observation of the resonant spin tunneling in a molecular magnet. Nature magazine called it one of the most remarkable discoveries in spin physics in a century. It has become the basis for quantum computation schemes based upon single-molecule magnets. Prof. Tejada's other remarkable achievement is the discovery of quantum magnetic deflagration (2005) -- propagating front of burning magnetic energy similar to chemical combustion. His is also known for observation of the correlated spin glass phase of an amorphous magnet, spin tunneling in single-domain particles, and quantum tunneling of vortices and interfaces in superconductors. In recent years he has done remarkable work on practical problems that include microwave spectroscopy of metallic stents for cardiology applications and terahertz study of the authenticity of paintings for art museums. During his tenure at the University of Barcelona Professor Tejada supervised dozens of doctoral students (34) that are now occupying leading positions in academia and industries.

Selected patents

1

Device and method for separating magnetic nanoparticles

Tejada, J.; Chudnovsky, E. and Azanza, E.

Applicant: Das-nano

Application number:

Priority number: PCT/EP2012/073414

2

Security document on which data can be stored and method and apparatus for reading data from and writing data on the security document (EP1646056 — 2006-04-12)

Arrieta Antonio, Jesús; López Díez, Raúl; Tejada Palacios, Javier

Applicant: European Central Bank (DE)

Application number: EP20040024139 20041009

Priority number: EP20040024139 20041009

3

Security document comprising means for authentication and method for authentication of security document (WO2005064551 — 2005-07-14)

Tejada Palacios, Javier; Arrieta Antonio, Jesús

Applicant: European Central Bank (DE)

Applicant Number: WO2004EP14667 20041223;

Priority number: EP20030029829 20031224.

4

Systems and methods for producing superradiance using molecular magnets (US2004100997 ― 2004-05-27)

Tejada, Javier [ES]; Hernandez, Joan M [ES]; Amigo, Roger [ES]; Ziolo, Ronald F [US]

Applicant: Xerox Corporation [US]

Application number: US20020303825 20021126

Priority number: US20020303825 20021126.

5

Microwave power measurement and spectral analysis technique involves magnetic material treatment for magnetic susceptibility and magnetization monitoring in resonator (ES2222791 ― 2005-02-01)

Tejada Palacios, Javier [ES]; Garcia Santiago, Antoni [ES]; Amigo Junque, Roger [ES]; Hernandez Ferras, Joan Manel [ES]; Gazo Pastor, Javier [ES]

Applicant: PREMO S A

Application number: ES20030000091 20030115

Priority number: ES20030000091 20030115.

6

3D printing Material Encoding

Tejada J.

Application number: PCT/EP2014/061844