Visit Dirac materials website

Terms of Use

Your use of this web site is subject to the following terms and conditions:

This site is operated by Dirac Materials Research Group. By using this site, you agree to abide by the terms of the OMDB Privacy Policy. You also acknowledge that the data in this database is computed, and may not be accurate enough for your application. You agree not to hold the developers, contributors, and hosts of the OMDB database liable for any accuracies in the data, or consequences thereof. You agree not to use automated scripts to collect large fractions of the database and disseminate them. If you are interested in large datasets, please get in touch.

Privacy Policy

The OMDB database provides this website as a public service. This Privacy Policy explains the collection, use and disclosure of your personal data by The OMDB database in relation to your use of the website (“Website”). When we use the term “personal data” in this Privacy Policy, we mean information that would allow someone to identify you, such as your name, address, location, employer, email address or other unique identifier.

Collection of personal data

When you register, we will collect information about your affiliation. This helps us to obtain funding and target our tools to the needs of our users. We also collect an email address that we will use to identify your profile. This allows you to review previous work and control sharing of permalinks. When you use the OMDB database Website, our servers will automatically collect the following information: your IP address (which may be used to indicate your general location), your browser type and version, date and time of the visit, and the pages that you view on Additionally we also monitor and log all activity on the site, including any searches generated by you. By default all user-generated data will not be visible to the public unless the user explicitly designates them to be so.

Use of personal data

We use the personal data we collect for internal purposes only - for example, to help us measure the number of visitors to the various sections of our site and improve organization, coverage, system performance or problem areas. This information is not used for associating search terms or patterns of site navigation with individual users. On occasion, the OMDB database may use aggregated personal data information for the purposes of analysis of the webpage usage, but not for materials research. Aggregated data cannot be linked back to an individual user. We also use Google Analytics to help us collect and analyze this personal data as discussed further below. We will never sell or rent your personal data, and we do not link browsing information or personal data from our server logs to any other personal data that you might submit to us, for example as a registered user of the OMDB database.

Disclosure of personal data

The OMDB database does not sell or rent your data to any third parties. The OMDB database may disclose your personal data to contractors and service providers only if and in so far as this is necessary for technical administration and maintenance of the Services, and in accordance with applicable law. We may also disclose your personal data to third parties if you explicitly consent to it, or if we are required to do so by applicable law.

Google Analytics

The OMDB database uses Google Analytics, a web analytics service provided by Google, Inc. (“Google”). Google Analytics uses “cookies”, which are text files placed on your computer, to help us analyze how users use the Website. The information generated by the cookie about your use of the Website (including your truncated IP address) will be transmitted to and stored by Google on servers in the United States. Google will use this information for the purpose of evaluating your use of the Website, compiling reports on website activity and providing other services relating to website activity and Internet usage. Google may also transfer this information to third parties where required to do so by law, or where such third parties process the information on Google's behalf. Google will not associate your IP address with any other data held by Google. By using the Website, you consent to the processing of data about you by Google in the manner and for the purposes set out above. For more information about Google Analytics, including Google’s privacy policy, please visit

If you would like to stop your data being sent to Google for analytics purposes, you can install the Google Analytics Browser Add-On, details of which are available at


Like most websites, we use cookies on the Website to help us improve the efficiency and quality of the OMDB database. We use cookies to register your visit and to track the pages that you view. Most browsers have cookies turned on as a default, but you can always disable cookies or disable cookies from third parties. Note that all logged-in access requires the use of cookies. For more information about cookies, including instructions for disabling cookies in most common web browsers, please visit

Links to Other Sites

For service to our user community, some links are provided to other Internet sites that provide Materials information. Once you follow a link to another site, you are subject to the privacy policy of the new site.


Materials on and websites not specifically noted otherwise are © in the current year and/or the year of their creation. Requests to reproduce, modify, or distribute materials on our websites should be directed to the page owner.

Updates to Privacy Policy

We may occasionally update this Privacy Policy. When we do, we will also revise the Effective Date below. Any changes to our Privacy Policy will always be available here on our homepage so that our visitors are always aware of what information we gather, how we might use that information, and whether we will disclose it to third parties.


If you have questions about this Privacy Policy, want to suggest changes to this Privacy Policy, or want to know what personal data we store about you, please ask.

Don’t want to give us your information?

If you decide that you do not want the OMDB database to collect or use your personal data in the manner described in this Privacy Policy, please do not register with our Website. If you decide that you no longer want to be registered with the OMDB database, you can send us a notice that you wish to withdraw any previous consent at any time by emailing us. Please bear in mind that, if you delete your account, all data associated with your account, including the permalinks and the usage data associated with those searches, will be deleted.

Effective Date: 1 September 2016